linux-kernel - Re: general protection fault in css_release_work

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Date:   Mon, 12 Apr 2021 08:20:52 +0200
From:   Christian Hesse <list@...rm.de>
To:     linux-kernel@...r.kernel.org
Subject: Re: general protection fault in css_release_work_fn()

Christian Hesse <list@...rm.de> on Mo, 2021/03/15 14:10:
> Hello everybody,
> 
> Christian Hesse <list@...rm.de> on Tue, 2021/03/02 09:34:
> > I see this on a git server with lots of ssh logins. It happens every few
> > hours to days. No idea how to reproduce, guess it's a race condition?
> > 
> > general protection fault, probably for non-canonical address
> > 0xdead000000000122: 0000 [#1] SMP NOPTI CPU: 3 PID: 2213757 Comm:
> > kworker/3:2 Not tainted 5.10.18-1-lts #1  
> 
> I've seen more crashes with 5.10.23-1-lts and 5.11.6-arch1-1. Looks like
> 5.11.2-arch1-1 is stable for now, but I did not test everything in between.

Had several more crashes, latest with 5.10.29-1-lts. So... Anybody has an
idea what commit could have caused this?
-- 
main(a){char*c=/*    Schoene Gruesse                         */"B?IJj;MEH"
"CX:;",b;for(a/*    Best regards             my address:    */=0;b=c[a++];)
putchar(b-1/(/*    Chris            cc -ox -xc - && ./x    */b/42*2-3)*42);}

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