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SubjectRe: [syzbot] WARNING in io_sync_cancel
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Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5788 } 2646 jiffies s: 2841 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit: d1f53b3e io_uring/cancel: mark task running before re-..
git tree: git://git.kernel.dk/linux.git io_uring-6.2
console output: https://syzkaller.appspot.com/x/log.txt?x=13634a0f880000
kernel config: https://syzkaller.appspot.com/x/.config?x=2edd87fe5cbdf43f
dashboard link: https://syzkaller.appspot.com/bug?extid=7df055631cd1be4586fd
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.

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