linux-kernel - Re: [Regression] 6.9.0: WARNING: workqueue: WQ_MEM_RECLAIM ttm:ttm_bo_delayed_delete [ttm] is flushing !WQ_MEM_RECLAIM events:qxl_gc

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Date: Wed, 8 May 2024 14:35:07 +0200
From: Anders Blomdell <anders.blomdell@...il.com>
To: Linux regressions mailing list <regressions@...ts.linux.dev>,
 David Wang <00107082@....com>
Cc: airlied@...il.com, airlied@...hat.com, daniel@...ll.ch,
 dreaming.about.electric.sheep@...il.com, dri-devel@...ts.freedesktop.org,
 kraxel@...hat.com, linux-kernel@...r.kernel.org,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
 spice-devel@...ts.freedesktop.org, tzimmermann@...e.de,
 virtualization@...ts.linux.dev, stable@...r.kernel.org
Subject: Re: [Regression] 6.9.0: WARNING: workqueue: WQ_MEM_RECLAIM
 ttm:ttm_bo_delayed_delete [ttm] is flushing !WQ_MEM_RECLAIM
 events:qxl_gc_work [qxl]



On 2024-05-07 07:04, Linux regression tracking (Thorsten Leemhuis) wrote:
> 
> 
> On 06.05.24 16:30, David Wang wrote:
>>> On 30.04.24 08:13, David Wang wrote:
> 
>>> And confirmed that the warning is caused by
>>> 07ed11afb68d94eadd4ffc082b97c2331307c5ea and reverting it can fix.
>>
>> The kernel warning still shows up in 6.9.0-rc7.
>> (I think 4 high load processes on a 2-Core VM could easily trigger the kernel warning.)
> 
> Thx for the report. Linus just reverted the commit 07ed11afb68 you
> mentioned in your initial mail (I put that quote in again, see above):
> 
> 3628e0383dd349 ("Reapply "drm/qxl: simplify qxl_fence_wait"")
> https://git.kernel.org/torvalds/c/3628e0383dd349f02f882e612ab6184e4bb3dc10
> 
> So this hopefully should be history now.
> 
> Ciao, Thorsten
> 
Since this affects the 6.8 series (6.8.7 and onwards), I made a CC to stable@...r.kernel.org

/Anders