On 6/9/20 11:07 AM, Miklos Szeredi wrote:
While running xfstests[1] on overlayfs I get the following:
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
[...]
Then when doing cat /proc/lockdep_chains I get this Oops:
BUG: unable to handle page fault for address: ffffffff83b36da8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 2262067 P4D 2262067 PUD 2263063 PMD 0
Thanks for the information. There are some corruption in the lock chain
data some garbage shows up in your lockdep_chains. I will try to
reproduce the error to in order to figure out where the bug is.
Thanks,
Longman
