Re: [syzbot] [kernel?] INFO: rcu detected stall in drain_vmap_area_work

From: syzbot
Date: Sat Jul 22 2023 - 19:53:18 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: { 0-.... } 2688 jiffies s: 3401 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit: fdf0eaf1 Linux 6.5-rc2
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=173f89baa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=77b9a3cf8f44c6da
dashboard link: https://syzkaller.appspot.com/bug?extid=fc9127d4bfa8ef129f7d
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=12e2986ea80000