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SubjectRe: WARNING: can't access registers at asm_sysvec_call_function_single
Date
On Tue, Sep 08 2020 at 13:16, syzbot wrote:

> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: f4d51dff Linux 5.9-rc4
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1455d4f9900000
> kernel config: https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9
> dashboard link: https://syzkaller.appspot.com/bug?extid=bc9dbf05dcc151e9b972
> compiler: gcc (GCC) 10.1.0-syz 20200507
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+bc9dbf05dcc151e9b972@syzkaller.appspotmail.com
>
> WARNING: can't access registers at asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:589

That's the ORC unwinder complaining, but I have no idea why...

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