linux-kernel - Re: 6.10/bisected/regression - commit 8430557fc584 cause warning at mm/page_table_check.c:198 __page_table_check_ptes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Zk0UA6wABOB9X_Dx@x1n>
Date: Tue, 21 May 2024 17:37:07 -0400
From: Peter Xu <peterx@...hat.com>
To: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
Cc: Pavel Tatashin <pasha.tatashin@...een.com>, axelrasmussen@...gle.com,
	David Hildenbrand <david@...hat.com>, nadav.amit@...il.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Linux List Kernel Mailing <linux-kernel@...r.kernel.org>
Subject: Re: 6.10/bisected/regression - commit 8430557fc584 cause warning at
 mm/page_table_check.c:198 __page_table_check_ptes_set+0x306

On Wed, May 22, 2024 at 01:48:36AM +0500, Mikhail Gavrilov wrote:
> On Wed, May 22, 2024 at 1:45 AM Peter Xu <peterx@...hat.com> wrote:
> >
> >
> > Did you forget to attach the kernel config?  If so, please attach it, I'll
> > try that, as my local config won't reproduce with CONFIG_DEBUG_VM_PGTABLE=y.
> >
> 
> Oh, sorry.
> Now I've definitely attached it.

Hmm I still cannot reproduce.  Weird.

Would it be possible for you to identify which line in debug_vm_pgtable.c
triggered that issue?

I think it should be some set_pte_at() but I'm not sure, as there aren't a
lot and all of them look benign so far.  It could be that I missed
something important.

Thanks,

-- 
Peter Xu