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

syzbot
2022-03-21T01:32:15Z

INFO: rcu detected stall in corrupted

IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 2628 jiffies s: 2065 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Task dump for CPU 0:
task:syz-executor354 state:R running task stack:27224 pid: 4078 ppid: 4061 flags:0x0000400e
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=16355271700000
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=17b1f271700000