Re: [syzbot] INFO: rcu detected stall in gc_worker (3)

syzbot
2022-03-20T15:33:12Z

INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-... } 2642 jiffies s: 2057 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Task dump for CPU 1:
task:syz-executor212 state:R running task stack:26424 pid: 4080 ppid: 4063 flags:0x0000000e
Call Trace:
<TASK>
</TASK>

Tested on:

commit: 91265a6d Add linux-next specific files for 20220303
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/
console output: https://syzkaller.appspot.com/x/log.txt?x=13f1becb700000
kernel config: https://syzkaller.appspot.com/x/.config?x=617f79440a35673a
dashboard link: https://syzkaller.appspot.com/bug?extid=eec403943a2a2455adaa
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch: https://syzkaller.appspot.com/x/patch.diff?x=11d0caeb700000