linux-kernel - Re: [syzbot] [kernel?] WARNING in flush_tlb

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Message-ID: <675974b1.050a0220.1ac542.0009.GAE@google.com>
Date: Wed, 11 Dec 2024 03:17:05 -0800
From: syzbot <syzbot+2f32bc207cbe5ca4b7a2@...kaller.appspotmail.com>
To: bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com, 
	linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...nel.org, 
	mingo@...hat.com, peterz@...radead.org, riel@...riel.com, 
	syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: [syzbot] [kernel?] WARNING in flush_tlb_func

syzbot has bisected this issue to:

commit 209954cbc7d0ce1a190fc725d20ce303d74d2680
Author: Rik van Riel <riel@...riel.com>
Date:   Thu Nov 14 15:26:16 2024 +0000

    x86/mm/tlb: Update mm_cpumask lazily

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13b9b3e8580000
start commit:   f486c8aa16b8 Add linux-next specific files for 20241128
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1079b3e8580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17b9b3e8580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e348a4873516af92
dashboard link: https://syzkaller.appspot.com/bug?extid=2f32bc207cbe5ca4b7a2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17c16fc0580000

Reported-by: syzbot+2f32bc207cbe5ca4b7a2@...kaller.appspotmail.com
Fixes: 209954cbc7d0 ("x86/mm/tlb: Update mm_cpumask lazily")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection