On Mon, Aug 16, 2021 at 1:17 AM Johannes Thumshirn
[off-list ref] wrote:

On 14/08/2021 06:33, Chris Murphy wrote:

quoted

I get the following call trace about 0.6s after dnf completes an
update which I imagine deletes many files. I'll try to reproduce and
get /proc/lock_stat

[   95.674507] kernel: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
[   95.676537] kernel: turning off the locking correctness validator.
[   95.676537] kernel: Please attach the output of /proc/lock_stat to
the bug report

That can be "fixed" by bumping CONFIG_LOCKDEP_CHAINS_BITS.
I have it set to 18 here.

Fedora is using CONFIG_LOCKDEP_CHAINS_BITS=16

If the consensus is we should use 18 here, I'll get a PR submitted to
the kernel dev team.

Thanks,

-- 
Chris Murphy