Toomas Aas wrote:
Kris Kennaway wrote:
OK. Can you obtain a lock profiling dump?
I'm trying, but not succeeding so far. I added the following to the
kernel config:
options MUTEX_PROFILING
options MPROF_BUFFERS="1536"
options MPROF_HASH_SIZE="1543"
And set debug.mutex.prof.enable=1
However, kgmon says that profiling is not enabled in the kernel. Am I
missing something essential or barking under completely wrong tree?
Yes :) kgmon has nothing to do with mutex profiling, so remove the MPROF_*.
sysctl debug.mutex.prof.enable=1
... trigger hang ...
sysctl debug.mutex.prof.enable=0
and send me the output of
sysctl debug.mutex.prof.stats
Kris
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