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GPU-PV (dxgkrnl): CUDA workload slows ~1.7× over 3–4 days of host uptime with accumulating dxgvmb_send_sync_msg: wait_for_completion failed in dmesg; wsl --shutdown does not recover, pnputil /restart-device on the GPU does

needs-author-feedback

Status: Open.

#41701 In microsoft/WSL;

· Koya Matsuo (matsuo-koya) opened on Sep 25, 2026

[WSLC] Expose WSLCProcessFlagsStdin via WslcProcessSettings - WslcGetProcessIOHandle(STDIN) returns E_INVALIDARG for all SDK callers

needs-author-feedback

Status: Open.

#41695 In microsoft/WSL;

· Soham Das (SohamDas2021) opened on Sep 24, 2026

Kernel panic in netvsc_send_pkt (NULL outbound ring) after host resume from S3, triggered by /init RTM_NEWLINK on eth0

kernelWSL kernelWSL kernel

needs-author-feedback

Status: Open.

#41692 In microsoft/WSL;

· まくぽり (mkpoli) opened on Sep 24, 2026

wslc: published port's wildcard (0.0.0.0) listener accepts TCP but relays zero bytes after WSLService transaction timeouts; loopback (127.0.0.1) listener keeps working

network

wslc

Status: Open.

#41691 In microsoft/WSL;

· mozhuanzuojing opened on Sep 24, 2026

WSL issue triage summary: priorities and owners

discussion

needs-attention

needs-author-feedback

Status: Open.

#41683 In microsoft/WSL;

· Ben Hillis (benhillis) opened on Sep 23, 2026

GPU-PV: dxgvmb_send_sync_msg never completes — Vulkan (Dozen) compute process hangs indefinitely with no error (Intel Arc B390)

GPU

Status: Open.

#41682 In microsoft/WSL;

· Chirag Mehta (cmehta-xpl) opened on Sep 23, 2026

NAT localhost forwarding: wslrelay.exe --mode 1 deadlocks under concurrent bidirectional bulk transfer

emailed-logsLogs have been emailedLogs have been emailed

network

Status: Open.

#41680 In microsoft/WSL;

· indy-jonesy opened on Sep 23, 2026

wslhost.exe killed by Windows hang detection (AppHangB1) when an unrelated MSIX package carrying a packaged service is serviced while its app is running

hypervisor-platform

Status: Open.

#41679 In microsoft/WSL;

· pzb5090 opened on Sep 23, 2026

PowerShell Module for WSLC

feature

wslc

Status: Open.

#41676 In microsoft/WSL;

· Martin Brown (martingbrown) opened on Sep 22, 2026

WSL D3D12 runtime unloads libd3d12core.so during process exit, leaving Mesa's d3d12 driver with dangling objects -> SIGSEGV (Steam gldriverquery exits 139)

GPU

Status: Open.

#41675 In microsoft/WSL;

· wxy1343 opened on Sep 22, 2026

Host bugchecks 0x9F on hibernate — vmswitch!VmsOmSwitchWaitForPendingData sleeps without timeout in the S4 NetPnP pause while a WSL2 VM is running

externalIssue exists outside of WSL componentsIssue exists outside of WSL components

hypervisor-platform

ntbugcheck

Status: Open.

#41674 In microsoft/WSL;

· František Bláha (fatheus97) opened on Sep 22, 2026

WSLC: A --format option that produces "correct" JSON

feature

wslc

Status: Open.

#41666 In microsoft/WSL;

· Brandon Waterloo [MSFT] (bwateratmsft) opened on Sep 21, 2026