* Re: [syzbot] [nilfs?] general protection fault in nilfs_clear_dirty_page
[not found] <000000000000da4f6b05eb9bf593@google.com>
@ 2023-06-11 21:18 ` syzbot
2023-06-12 3:30 ` Christoph Hellwig
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2023-06-11 21:18 UTC (permalink / raw)
To: axboe, dsterba, hch, konishi.ryusuke, linux-block, linux-fsdevel,
linux-kernel, linux-nilfs, syzkaller-bugs, wqu
syzbot has bisected this issue to:
commit 4a445b7b6178d88956192c0202463063f52e8667
Author: Qu Wenruo <wqu@suse.com>
Date: Sat Aug 13 08:06:53 2022 +0000
btrfs: don't merge pages into bio if their page offset is not contiguous
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17778475280000
start commit: 022ce8862dff Merge tag 'i2c-for-6.4-rc6' of git://git.kern..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=14f78475280000
console output: https://syzkaller.appspot.com/x/log.txt?x=10f78475280000
kernel config: https://syzkaller.appspot.com/x/.config?x=7474de833c217bf4
dashboard link: https://syzkaller.appspot.com/bug?extid=53369d11851d8f26735c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e9d48b280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12d7fa63280000
Reported-by: syzbot+53369d11851d8f26735c@syzkaller.appspotmail.com
Fixes: 4a445b7b6178 ("btrfs: don't merge pages into bio if their page offset is not contiguous")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [nilfs?] general protection fault in nilfs_clear_dirty_page
2023-06-11 21:18 ` [syzbot] [nilfs?] general protection fault in nilfs_clear_dirty_page syzbot
@ 2023-06-12 3:30 ` Christoph Hellwig
2023-06-12 3:59 ` Ryusuke Konishi
0 siblings, 1 reply; 3+ messages in thread
From: Christoph Hellwig @ 2023-06-12 3:30 UTC (permalink / raw)
To: syzbot
Cc: axboe, dsterba, hch, konishi.ryusuke, linux-block, linux-fsdevel,
linux-kernel, linux-nilfs, syzkaller-bugs, wqu
On Sun, Jun 11, 2023 at 02:18:29PM -0700, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit 4a445b7b6178d88956192c0202463063f52e8667
> Author: Qu Wenruo <wqu@suse.com>
> Date: Sat Aug 13 08:06:53 2022 +0000
>
> btrfs: don't merge pages into bio if their page offset is not contiguous
I can't see how that btrfs commit would affect nilfs2..
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [nilfs?] general protection fault in nilfs_clear_dirty_page
2023-06-12 3:30 ` Christoph Hellwig
@ 2023-06-12 3:59 ` Ryusuke Konishi
0 siblings, 0 replies; 3+ messages in thread
From: Ryusuke Konishi @ 2023-06-12 3:59 UTC (permalink / raw)
To: Christoph Hellwig
Cc: syzbot, axboe, dsterba, linux-block, linux-fsdevel, linux-kernel,
linux-nilfs, syzkaller-bugs, wqu
On Mon, Jun 12, 2023 at 12:30 PM Christoph Hellwig wrote:
>
> On Sun, Jun 11, 2023 at 02:18:29PM -0700, syzbot wrote:
> > syzbot has bisected this issue to:
> >
> > commit 4a445b7b6178d88956192c0202463063f52e8667
> > Author: Qu Wenruo <wqu@suse.com>
> > Date: Sat Aug 13 08:06:53 2022 +0000
> >
> > btrfs: don't merge pages into bio if their page offset is not contiguous
>
> I can't see how that btrfs commit would affect nilfs2..
Yeah, I think this bisection result is wrong.
I have already posted a bug-fix patch titled "nilfs2: prevent general
protection fault in nilfs_clear_dirty_page()"
for this issue.
Thanks,
Ryusuke Konishi
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-06-12 4:00 UTC | newest]
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2023-06-11 21:18 ` [syzbot] [nilfs?] general protection fault in nilfs_clear_dirty_page syzbot
2023-06-12 3:30 ` Christoph Hellwig
2023-06-12 3:59 ` Ryusuke Konishi
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