Re: [syzbot] [kernfs?] INFO: task hung in do_coredump (3)

From: syzbot
Date: Wed Oct 30 2024 - 07:21:25 EST


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: { P1029 } 3639 jiffies s: 9185 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit: c1e939a2 Merge tag 'cgroup-for-6.12-rc5-fixes' of git:..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1408e540580000
kernel config: https://syzkaller.appspot.com/x/.config?x=1940f73a609bb874
dashboard link: https://syzkaller.appspot.com/bug?extid=a8cdfe2d8ad35db3a7fd
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=1620e540580000