Someone reported earlier a similar problem with dlm_sendd taking up
100%:
http://www.mail-archive.com/linux-cluster@xxxxxxxxxx/msg01002.html
Could our problem be with bugs in our kernel and GFS versions ? (2.6.9-
X) ?
Any ideas why dlm_sendd is taking up 100% CPU ?
We have this intermittent problem which seems to happen when a group
of users log into our servers at the same time, possibly opening/
writing files from the same mount point.
Should dlm_sendd ever take up 100% of the CPU ?
Any help would be greatly appreciated.... i mean greatly.... like
sell my soul "greatly". If there is any additional diagnostic info
i can provide, please let me know. /var/log/messages just shows
failed SMB pipes/write failures due to the high load/lockups.
Version info:
----------------------------
Kernel: 2.6.9-55.0.6.ELsmp #1 SMP
GFS: 2.6.9-72.2.0.7
SMB: 3.0.10-1.4E.12.2
Top:
----------------------------
top - 15:48:44 up 53 days, 13:35, 3 users, load average: 57.40,
48.47, 37.00
Tasks: 257 total, 64 running, 193 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.3% us, 99.7% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi,
0.0% si
Cpu1 : 0.0% us, 100.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0%
hi, 0.0% si
Cpu2 : 0.3% us, 99.7% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi,
0.0% si
Cpu3 : 0.0% us, 100.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0%
hi, 0.0% si
Mem: 4147164k total, 1089108k used, 3058056k free, 5200k
buffers
Swap: 2031608k total, 224k used, 2031384k free, 795340k
cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4218 root 9 -10 0 0 0 R 100 0.0 1066:10 dlm_sendd
...
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