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Known prob: MAX_LOCK_DEPTH too low?

DISCUSSION Linda Walsh 2 participants 4 messages Jan 19, 2008 – Jan 21, 2008

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On my x86_64 machine, I got the following message
in log (kern = 2.6.23.14)

Jan 16 04:08:38 Astara kernel: BUG: MAX_LOCK_DEPTH too low!
Jan 16 04:08:38 Astara kernel: turning off the locking correctness validator.

Have no idea what caused it as I found the message on my console somewhat after the fact. The system had been up over 24 hours and is still running. System still seems 'fine' (been up 3 days now), so you can treat this as a "data point".

#1 lore raw
Quoted 11 lines · Linda Walsh

On my x86_64 machine, I got the following message
in log (kern = 2.6.23.14)

Jan 16 04:08:38 Astara kernel: BUG: MAX_LOCK_DEPTH too low!
Jan 16 04:08:38 Astara kernel: turning off the locking correctness 

validator.

Have no idea what caused it as I found the message on my console somewhat after the fact. The system had been up over 24 hours and is still running. System still seems 'fine' (been up 3 days now), so you can treat this as a "data point".

Are you perhaps an XFS user?

#2 lore raw
Quoted 8 lines · Peter Zijlstra
Quoted 6 lines · Linda Walsh

On my x86_64 machine, I got the following message
in log (kern = 2.6.23.14)

Jan 16 04:08:38 Astara kernel: BUG: MAX_LOCK_DEPTH too low!
Jan 16 04:08:38 Astara kernel: turning off the locking correctness validator.
Quoted 9 lines
Quoted 5 lines

Have no idea what caused it as I found the message on my console somewhat after the fact. The system had been up over 24 hours and is still running. System still seems 'fine' (been up 3 days now), so you can treat this as a "data point".

Are you perhaps an XFS user?

----
Funny you should mention that... yes. However, there were no
other messages that seem to indicate that the message had anything to do with XFS. Nice shot in the dark.

#3 lore raw
Quoted 16 lines · Linda Walsh
Quoted 15 lines · Peter Zijlstra
Quoted 12 lines · Linda Walsh

On my x86_64 machine, I got the following message
in log (kern = 2.6.23.14)

Jan 16 04:08:38 Astara kernel: BUG: MAX_LOCK_DEPTH too low!
Jan 16 04:08:38 Astara kernel: turning off the locking correctness 

validator.

Have no idea what caused it as I found the message on my console somewhat after the fact. The system had been up over 24 hours and is still running. System still seems 'fine' (been up 3 days now), so you can treat this as a "data point".

Quoted 7 lines
Quoted 3 lines

Are you perhaps an XFS user?

----
Funny you should mention that... yes. However, there were no
other messages that seem to indicate that the message had anything to do with XFS. Nice shot in the dark.

:-), know issue, I guess I'll up the MAX_LOCK_DEPTH for the next release. I looked at dynamically allocating that stuff, but that gets awfully painful.