Re: [REGRESSION] bisected: perf: hang when using async-profiler caused by perf: Fix the POLL_HUP delivery breakage

From: Harvey Tite
Date: Sun Nov 02 2025 - 20:25:05 EST



Hello hope everyone is well, just following up on this bug report, this
appears to have been patched here
https://lore.kernel.org/lkml/20251015051828.12809-1-dapeng1.mi@xxxxxxxxxxxxxxx/
thanks to Dapeng Mi; however, the patch email does not appear to have
CCed the regressions or stable list.

On 2025/10/15 Peter Zijlstra wrote:

> So yeah, I suppose this works. Let me go queue this up.

In regard to the patch, hence I assume the patch is approved for
implementation in future versions.

This is a critical bug causing widespread irrecoverable system freezes
reported by many users with many differing setups, including myself.
Notably it is being triggered by a minecraft mod called spark with at
least 150 million aggregate downloads
(https://www.curseforge.com/minecraft/mc-mods/spark
https://github.com/lucko/spark/issues/530).

If at all possible I would love to request that this please be
implemented/backported to kernels 6.17 and 6.18.

Thank you.