gh-88352: Fix logging.TimedRotatingFileHandler by serhiy-storchaka · Pull Request #116191 · python/cpython · GitHub

Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data.
computeRollover() now always return the timestamp larger than the specified time.
Fix computation of the rollover time during the DST change.

Issue: TimedRotatingFileHandler overwrite log #88352

* Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change.

Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12.
🐍🍒⛏🤖

* Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change. (cherry picked from commit fee86fd) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

GH-116208 is a backport of this pull request to the 3.12 branch.

* Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change. (cherry picked from commit fee86fd) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

GH-116209 is a backport of this pull request to the 3.11 branch.

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Debian PGO 3.x has failed when building commit fee86fd.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/249/builds/7908) and take a look at the build logs.
Check if the failure is related to this commit (fee86fd) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/249/builds/7908

Summary of the results of the build (if available):

==

Click to see traceback logs

remote: Enumerating objects: 17, done.        
remote: Counting objects:   5% (1/17)        
remote: Counting objects:  11% (2/17)        
remote: Counting objects:  17% (3/17)        
remote: Counting objects:  23% (4/17)        
remote: Counting objects:  29% (5/17)        
remote: Counting objects:  35% (6/17)        
remote: Counting objects:  41% (7/17)        
remote: Counting objects:  47% (8/17)        
remote: Counting objects:  52% (9/17)        
remote: Counting objects:  58% (10/17)        
remote: Counting objects:  64% (11/17)        
remote: Counting objects:  70% (12/17)        
remote: Counting objects:  76% (13/17)        
remote: Counting objects:  82% (14/17)        
remote: Counting objects:  88% (15/17)        
remote: Counting objects:  94% (16/17)        
remote: Counting objects: 100% (17/17)        
remote: Counting objects: 100% (17/17), done.        
remote: Compressing objects:   7% (1/13)        
remote: Compressing objects:  15% (2/13)        
remote: Compressing objects:  23% (3/13)        
remote: Compressing objects:  30% (4/13)        
remote: Compressing objects:  38% (5/13)        
remote: Compressing objects:  46% (6/13)        
remote: Compressing objects:  53% (7/13)        
remote: Compressing objects:  61% (8/13)        
remote: Compressing objects:  69% (9/13)        
remote: Compressing objects:  76% (10/13)        
remote: Compressing objects:  84% (11/13)        
remote: Compressing objects:  92% (12/13)        
remote: Compressing objects: 100% (13/13)        
remote: Compressing objects: 100% (13/13), done.        
remote: Total 17 (delta 4), reused 8 (delta 4), pack-reused 0        
From https://github.com/python/cpython
 * branch                    main       -> FETCH_HEAD
Note: switching to 'fee86fd9a422612b39e5aabf2571b8fe4abac770'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at fee86fd9a42 gh-88352: Fix logging.TimedRotatingFileHandler (GH-116191)
Switched to and reset branch 'main'

find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
find: ‘build’: No such file or directory
make[2]: [Makefile:2996: clean-retain-profile] Error 1 (ignored)
./Modules/_xxinterpqueuesmodule.c: In function ‘queuesmod_get’:
./Modules/_xxinterpqueuesmodule.c:1430:21: warning: ‘fmt’ may be used uninitialized [-Wmaybe-uninitialized]
 1430 |     PyObject *res = Py_BuildValue("Oi", obj, fmt);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/_xxinterpqueuesmodule.c:1420:9: note: ‘fmt’ was declared here
 1420 |     int fmt;
      |         ^~~
./Modules/readline.c: In function ‘setup_readline’:
./Modules/readline.c:1305:21: warning: assignment to ‘int (*)(void)’ from incompatible pointer type ‘int (*)(const char *, int)’ [-Wincompatible-pointer-types]
 1305 |     rl_startup_hook = on_startup_hook;
      |                     ^
./Modules/readline.c:1307:23: warning: assignment to ‘int (*)(void)’ from incompatible pointer type ‘int (*)(const char *, int)’ [-Wincompatible-pointer-types]
 1307 |     rl_pre_input_hook = on_pre_input_hook;
      |                       ^
./Modules/_xxinterpqueuesmodule.c: In function ‘queuesmod_get’:
./Modules/_xxinterpqueuesmodule.c:1430:21: warning: ‘fmt’ may be used uninitialized [-Wmaybe-uninitialized]
 1430 |     PyObject *res = Py_BuildValue("Oi", obj, fmt);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/_xxinterpqueuesmodule.c:1420:9: note: ‘fmt’ was declared here
 1420 |     int fmt;
      |         ^~~
In function ‘word_to_string’,
    inlined from ‘coeff_to_string’ at ./Modules/_decimal/libmpdec/io.c:410:13,
    inlined from ‘_mpd_to_string’ at ./Modules/_decimal/libmpdec/io.c:611:18:
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:356:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  356 |     case 18: EXTRACT_DIGIT(s, x, 100000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:365:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  365 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:365:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  365 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
In function ‘word_to_string’,
    inlined from ‘coeff_to_string’ at ./Modules/_decimal/libmpdec/io.c:410:13,
    inlined from ‘_mpd_to_string’ at ./Modules/_decimal/libmpdec/io.c:607:18:
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:359:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  359 |     case 15: EXTRACT_DIGIT(s, x, 100000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:356:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  356 |     case 18: EXTRACT_DIGIT(s, x, 100000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:357:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  357 |     case 17: EXTRACT_DIGIT(s, x, 10000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:358:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  358 |     case 16: EXTRACT_DIGIT(s, x, 1000000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:360:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  360 |     case 14: EXTRACT_DIGIT(s, x, 10000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:361:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  361 |     case 13: EXTRACT_DIGIT(s, x, 1000000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:362:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  362 |     case 12: EXTRACT_DIGIT(s, x, 100000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:363:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  363 |     case 11: EXTRACT_DIGIT(s, x, 10000000000ULL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:365:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  365 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:365:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  365 |     case 10: EXTRACT_DIGIT(s, x, 1000000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:366:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  366 |     case 9:  EXTRACT_DIGIT(s, x, 100000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:367:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  367 |     case 8:  EXTRACT_DIGIT(s, x, 10000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:368:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  368 |     case 7:  EXTRACT_DIGIT(s, x, 1000000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:369:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  369 |     case 6:  EXTRACT_DIGIT(s, x, 100000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:370:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  370 |     case 5:  EXTRACT_DIGIT(s, x, 10000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:371:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  371 |     case 4:  EXTRACT_DIGIT(s, x, 1000UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:372:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  372 |     case 3:  EXTRACT_DIGIT(s, x, 100UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:348:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  348 |         if (s == dot) *s++ = '.'; *s++ = '0' + (char)(x / d); x %= d
      |                                   ~~~~~^~~~~~~~~~~~~~~~~~~~~
./Modules/_decimal/libmpdec/io.c:373:14: note: in expansion of macro ‘EXTRACT_DIGIT’
  373 |     case 2:  EXTRACT_DIGIT(s, x, 10UL, dot);
      |              ^~~~~~~~~~~~~
./Modules/readline.c: In function ‘setup_readline’:
./Modules/readline.c:1305:21: warning: assignment to ‘int (*)(void)’ from incompatible pointer type ‘int (*)(const char *, int)’ [-Wincompatible-pointer-types]
 1305 |     rl_startup_hook = on_startup_hook;
      |                     ^
./Modules/readline.c:1307:23: warning: assignment to ‘int (*)(void)’ from incompatible pointer type ‘int (*)(const char *, int)’ [-Wincompatible-pointer-types]
 1307 |     rl_pre_input_hook = on_pre_input_hook;
      |                       ^
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘doParseXmlDecl’ at ./Modules/expat/xmltok.c:1192:13:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘doParseXmlDecl’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1070:9:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1076:12:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1076:12:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1083:9:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1083:9:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1110:7:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1123:9:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~
In function ‘utf8_toUtf8’,
    inlined from ‘toAscii’ at ./Modules/expat/xmltok.c:1038:3,
    inlined from ‘parsePseudoAttribute’ at ./Modules/expat/xmltok.c:1123:9:
./Modules/expat/xmltok.c:392:5: warning: ‘memcpy’ writing 2 or more bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
  392 |     memcpy(*toP, *fromP, bytesToCopy);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Modules/expat/xmltok.c: In function ‘parsePseudoAttribute’:
./Modules/expat/xmltok.c:1036:8: note: destination object ‘buf’ of size 1
 1036 |   char buf[1];
      |        ^~~

make: *** [Makefile:2151: buildbottest] Error 3

…-116208) * Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change. (cherry picked from commit fee86fd) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

…-116209) * Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change. (cherry picked from commit fee86fd) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot AMD64 Ubuntu NoGIL Refleaks 3.x has failed when building commit fee86fd.

What do you need to do:

Don't panic.
Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/1226/builds/1361) and take a look at the build logs.
Check if the failure is related to this commit (fee86fd) or if it is a false positive.
If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/1226/builds/1361

Failed tests:

test_eintr

Failed subtests:

test_lockf - main.FNTLEINTRTest.test_lockf
test_flock - main.FNTLEINTRTest.test_flock
test_all - test.test_eintr.EINTRTests.test_all

Test leaking resources:

test_manager: memory blocks
test_processes: memory blocks

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/process.py", line 314, in _bootstrap
    self.run()
    ~~~~~~~~^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_multiprocessing.py", line 1432, in f
    cond.release()
    ~~~~~~~~~~~~^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/managers.py", line 1059, in release
    return self._callmethod('release')
           ~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/managers.py", line 840, in _callmethod
    raise convert_to_error(kind, result)
multiprocessing.managers.RemoteError: 
---------------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/managers.py", line 263, in serve_client
    self.id_to_local_proxy_obj[ident]
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
KeyError: '20006100070'


Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/test_eintr.py", line 17, in test_all
    script_helper.run_test_script(script)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/support/script_helper.py", line 316, in run_test_script
    raise AssertionError(f"{name} failed")
AssertionError: script _test_eintr.py failed


Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/managers.py", line 265, in serve_client
    raise ke
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/managers.py", line 259, in serve_client
    obj, exposed, gettypeid = id_to_obj[ident]
                              ~~~~~~~~~^^^^^^^
KeyError: '20006100070'
---------------------------------------------------------------------------
Timeout (3:20:00)!
Thread 0x00007f647af5a740 (most recent call first):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/popen_fork.py", line 27 in poll
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/popen_fork.py", line 43 in wait
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/multiprocessing/process.py", line 149 in join
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/case.py", line 597 in _callCleanup
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/case.py", line 671 in doCleanups
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/case.py", line 638 in run
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/case.py", line 690 in __call__
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/suite.py", line 122 in run
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/suite.py", line 122 in run
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/unittest/runner.py", line 240 in run
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 57 in _run_suite
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 37 in run_unittest
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 132 in test_func
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/refleak.py", line 106 in runtest_refleak
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 84 in regrtest_runner
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 135 in _load_run_test
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 178 in _runtest_env_changed_exc
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 278 in _runtest
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/single.py", line 306 in run_single_test
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/worker.py", line 77 in worker_process
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/worker.py", line 112 in main
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/libregrtest/worker.py", line 116 in <module>
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/runpy.py", line 88 in _run_code
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/runpy.py", line 198 in _run_module_as_main


Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 532, in test_lockf
    self._lock(fcntl.lockf, "lockf")
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 517, in _lock
    raise Exception("failed to sync child in %.1f sec" % dt)
Exception: failed to sync child in 300.9 sec


Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 535, in test_flock
    self._lock(fcntl.flock, "flock")
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 517, in _lock
    raise Exception("failed to sync child in %.1f sec" % dt)
Exception: failed to sync child in 300.8 sec


Traceback (most recent call last):
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 532, in test_lockf
    self._lock(fcntl.lockf, "lockf")
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/buildarea/3.x.itamaro-ubuntu-aws.refleak.nogil/build/Lib/test/_test_eintr.py", line 517, in _lock
    raise Exception("failed to sync child in %.1f sec" % dt)
Exception: failed to sync child in 300.0 sec

* Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change.

This just failed under WASI: https://buildbot.python.org/all/#/builders/1046/builds/4510/steps/7/logs/stdio . Maybe a flaky test?

Yes, a flaky test. It can fail even on Linux if increase the CPU load.

I am puzzled. The failure is not actually depended on the CPU load. It is random, with probability about one or few percents. An obvious way to fix it (increasing the time delta for utime()) does not help.

It should be fixed by #116409.

* Do not overwrite already rolled over files. It happened at midnight or during the DST change and caused the loss of data. * computeRollover() now always return the timestamp larger than the specified time. * Fix computation of the rollover time during the DST change.

serhiy-storchaka added needs backport to 3.11 only security fixes needs backport to 3.12 only security fixes labels Mar 1, 2024

serhiy-storchaka requested a review from vsajip as a code owner March 1, 2024 10:12

bedevere-app Bot added the awaiting core review label Mar 1, 2024

bedevere-app Bot mentioned this pull request Mar 1, 2024

TimedRotatingFileHandler overwrite log #88352

Closed

vsajip approved these changes Mar 1, 2024

View reviewed changes

bedevere-app Bot added awaiting merge and removed awaiting core review labels Mar 1, 2024

serhiy-storchaka merged commit fee86fd into python:main Mar 1, 2024

serhiy-storchaka deleted the logging-compute-rollover branch March 1, 2024 15:50

bedevere-app Bot removed the awaiting merge label Mar 1, 2024

bedevere-app Bot removed the needs backport to 3.12 only security fixes label Mar 1, 2024

bedevere-app Bot removed the needs backport to 3.11 only security fixes label Mar 1, 2024

This was referenced Mar 1, 2024

bpo-44186: prevent TimedRotatingFileHandler overwriting log files #26553

Closed

TimedRotatingFileHandler "midnight" misleading when interval > 1 #90535

Closed

lpyu001 mentioned this pull request Oct 19, 2026

TimedRotatingFileHandler stops rolling over permanently once doRollover() exits without updating rolloverAt #159690

Closed

gh-88352: Fix logging.TimedRotatingFileHandler by serhiy-storchaka · Pull Request #116191 · python/cpython · GitHub

Repository navigation

gh-88352: Fix logging.TimedRotatingFileHandler - #116191

gh-88352: Fix logging.TimedRotatingFileHandler#116191
serhiy-storchaka merged 1 commit into
python:mainfrom
serhiy-storchaka:logging-compute-rollover

serhiy-storchaka commented Mar 1, 2024 •
edited by bedevere-app Bot
Loading

Uh oh!

Uh oh!

miss-islington-app Bot commented Mar 1, 2024

Uh oh!

bedevere-app Bot commented Mar 1, 2024

Uh oh!

bedevere-app Bot commented Mar 1, 2024

Uh oh!

bedevere-bot commented Mar 1, 2024

Uh oh!

bedevere-bot commented Mar 1, 2024

Uh oh!

brettcannon commented Mar 4, 2024

Uh oh!

serhiy-storchaka commented Mar 4, 2024

Uh oh!

serhiy-storchaka commented Mar 5, 2024 •
edited
Loading

Uh oh!

Uh oh!

serhiy-storchaka commented Mar 6, 2024

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

gh-88352: Fix logging.TimedRotatingFileHandler by serhiy-storchaka · Pull Request #116191 · python/cpython · GitHub

Repository navigation

gh-88352: Fix logging.TimedRotatingFileHandler - #116191

gh-88352: Fix logging.TimedRotatingFileHandler#116191serhiy-storchaka merged 1 commit intopython:mainpython/cpython:mainfrom serhiy-storchaka:logging-compute-rolloverserhiy-storchaka/cpython:logging-compute-rolloverCopy head branch name to clipboard

Conversation

serhiy-storchaka commented Mar 1, 2024 • edited by bedevere-app Bot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

miss-islington-app Bot commented Mar 1, 2024

Uh oh!

bedevere-app Bot commented Mar 1, 2024

Uh oh!

bedevere-app Bot commented Mar 1, 2024

Uh oh!

bedevere-bot commented Mar 1, 2024

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Uh oh!

bedevere-bot commented Mar 1, 2024

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Uh oh!

brettcannon commented Mar 4, 2024

Uh oh!

serhiy-storchaka commented Mar 4, 2024

Uh oh!

serhiy-storchaka commented Mar 5, 2024 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

serhiy-storchaka commented Mar 6, 2024

Uh oh!

Reviewers

Uh oh!

Assignees

Labels

Projects

Milestone

Development

Uh oh!

4 participants

gh-88352: Fix logging.TimedRotatingFileHandler#116191
serhiy-storchaka merged 1 commit into
python:mainfrom
serhiy-storchaka:logging-compute-rollover

serhiy-storchaka commented Mar 1, 2024 •
edited by bedevere-app Bot
Loading

serhiy-storchaka commented Mar 5, 2024 •
edited
Loading