linux-kernel - WARNING: can't access registers at asm_sysvec_reschedule

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Message-ID: <000000000000a03f8d05ae7c9371@google.com>
Date:   Fri, 04 Sep 2020 06:09:19 -0700
From:   syzbot <syzbot+853f7009c5c271473926@...kaller.appspotmail.com>
To:     alexandre.chartre@...cle.com, bp@...en8.de, hpa@...or.com,
        linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...hat.com,
        peterz@...radead.org, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de, x86@...nel.org
Subject: WARNING: can't access registers at asm_sysvec_reschedule_ipi

Hello,

syzbot found the following issue on:

HEAD commit:    e28f0104 Merge tag 'fixes-2020-09-03' of git://git.kernel...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10c43af9900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299
dashboard link: https://syzkaller.appspot.com/bug?extid=853f7009c5c271473926
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+853f7009c5c271473926@...kaller.appspotmail.com

WARNING: can't access registers at asm_sysvec_reschedule_ipi+0x12/0x20 arch/x86/include/asm/idtentry.h:586

---
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