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From: Dmitry Vyukov <dvyukov@google.com>
To: syzbot <syzbot+dac365e3ce07c3d0e496@syzkaller.appspotmail.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] WARNING: can't access registers at entry_SYSCALL_64_after_hwframe
Date: Thu, 16 Feb 2023 16:14:25 +0100	[thread overview]
Message-ID: <CACT4Y+Yq1knodAhoBnUe-Tf6QLrQCrGV5gyWC7An8poQDcfv6g@mail.gmail.com> (raw)
In-Reply-To: <000000000000ff304105f4d1cd36@google.com>

On Thu, 16 Feb 2023 at 15:13, syzbot
<syzbot+dac365e3ce07c3d0e496@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    9d9019bcea1a Add linux-next specific files for 20230215
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=144edcc8c80000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=a64cbb8ad0da425e
> dashboard link: https://syzkaller.appspot.com/bug?extid=dac365e3ce07c3d0e496
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/70f0c6bb5351/disk-9d9019bc.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/7eed8686df34/vmlinux-9d9019bc.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/84bb6da6b00e/bzImage-9d9019bc.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+dac365e3ce07c3d0e496@syzkaller.appspotmail.com
>
> WARNING: can't access registers at entry_SYSCALL_64_after_hwframe+0x63/0xcd


This is another splat of reports we started getting recently. Looks
like this may be ORC unwinder related as well.

  reply	other threads:[~2023-02-16 15:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-16 14:13 [syzbot] WARNING: can't access registers at entry_SYSCALL_64_after_hwframe syzbot
2023-02-16 15:14 ` Dmitry Vyukov [this message]
2023-02-16 18:51   ` Josh Poimboeuf
2023-02-16 20:26     ` Josh Poimboeuf
2023-02-17  9:05       ` Dmitry Vyukov
2023-02-21  5:09 ` syzbot

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