3:47 a.m.
Hi Daniel,
Thanks for responding. I have attached the hung ganesha and captured the backtraces for
all threads - all worker threads are waiting on the conditional variable. I could see no
locks as such in any of the threads. Is there anything i need to take care while updating
op_ctx ?
backtrace of one of the worker thread
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(gdb) bt
#0 pthread_cond_timedwait@(a)GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1 0x00007f98a96a3d7b in work_pool_thread (arg=0x7f9899373020) at
/root/chakra/nfs-ganesha_V3-stable/nfs-ganesha/src/libntirpc/src/work_pool.c:215
#2 0x00007f98a9e9b6ba in start_thread (arg=0x7f987b2fe700) at pthread_create.c:333
#3 0x00007f98a99c941d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
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fio command im using - see weird output...at the end
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root@testnode:~# fio --direct=1 --name=testfile --directory=/nfs4/testnode/test --thread
--runtime=120 --time_based --refill_buffers --overwrite=0 --ioengine=libaio --rw=read
--bs=128k --numjobs=4 --filesize=4g --fallocate=none --group_reporting --iodepth=512
testfile: (g=0): rw=read, bs=128K-128K/128K-128K/128K-128K, ioengine=libaio, iodepth=512
...
fio-2.2.10
Starting 4 threads
testfile: Laying out IO file(s) (1 file(s) / 4096MB)
testfile: Laying out IO file(s) (1 file(s) / 4096MB)
testfile: Laying out IO file(s) (1 file(s) / 4096MB)
testfile: Laying out IO file(s) (1 file(s) / 4096MB)
Jobs: 4 (f=4): [R(4)] [inf% done] [0KB/0KB/0KB /s] [0/0/0 iops] [eta
1158050441d:06h:43m:07s]
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Regards,
Chakra