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Message-ID: <a3b24ee4-b2bc-4245-a560-afe4813843ff@redhat.com>
Date: Mon, 30 Jun 2025 22:08:38 +0200
From: David Hildenbrand <david@...hat.com>
To: syzbot <syzbot+16b1da89309a06cd0e3a@...kaller.appspotmail.com>,
akpm@...ux-foundation.org, bhelgaas@...gle.com, bp@...en8.de,
dave.hansen@...ux.intel.com, guohui.study@...il.com, hpa@...or.com,
jannh@...gle.com, kirill.shutemov@...ux.intel.com, liam.howlett@...cle.com,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
lorenzo.stoakes@...cle.com, luto@...nel.org, mingo@...hat.com,
peterz@...radead.org, seanjc@...gle.com, syzkaller-bugs@...glegroups.com,
tglx@...utronix.de, torvalds@...ux-foundation.org, x86@...nel.org
Subject: Re: [syzbot] [kernel?] WARNING in get_pat_info
On 30.06.25 22:06, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit f8e97613fed25758ddf52159b87e1c66e619a23a
> Author: David Hildenbrand <david@...hat.com>
> Date: Mon May 12 12:34:17 2025 +0000
>
> mm: convert VM_PFNMAP tracking to pfnmap_track() + pfnmap_untrack()
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12f1448c580000
> start commit: fac04efc5c79 Linux 6.13-rc2
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=fee25f93665c89ac
> dashboard link: https://syzkaller.appspot.com/bug?extid=16b1da89309a06cd0e3a
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e2ab30580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11d113e8580000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: mm: convert VM_PFNMAP tracking to pfnmap_track() + pfnmap_untrack()
Yes, that should be correct. I didnt't remember that we had a syzbot complaint
about that one, otherwise I would have tagged it.
#syz fix: mm: convert VM_PFNMAP tracking to pfnmap_track() + pfnmap_untrack()
--
Cheers,
David / dhildenb
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