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SubjectRe: WARNING: can't access registers at asm_sysvec_reschedule_ipi
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syzbot has found a reproducer for the following issue on:

HEAD commit: 64a632da net: fec: Fix phy_device lookup for phy_reset_aft..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=11580c80500000
kernel config: https://syzkaller.appspot.com/x/.config?x=c06bcf3cc963d91c
dashboard link: https://syzkaller.appspot.com/bug?extid=853f7009c5c271473926
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c1bc6f900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+853f7009c5c271473926@syzkaller.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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