<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Any ideas why dlm_sendd is taking up 100% CPU ? <div><br class="webkit-block-placeholder"></div><div>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.<br><br>Should dlm_sendd ever take up 100% of the CPU ?<br><br>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.<br><br>Version info:<br>----------------------------<br>Kernel: 2.6.9-55.0.6.ELsmp #1 SMP<br>GFS: 2.6.9-72.2.0.7<br>SMB: 3.0.10-1.4E.12.2<br><br>Top:<br>----------------------------<br>top - 15:48:44 up 53 days, 13:35, 3 users, load average: 57.40, 48.47, 37.00<br>Tasks: 257 total, 64 running, 193 sleeping, 0 stopped, 0 zombie<br>Cpu0 : 0.3% us, 99.7% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si<br>Cpu1 : 0.0% us, 100.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si<br>Cpu2 : 0.3% us, 99.7% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si<br>Cpu3 : 0.0% us, 100.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si<br>Mem: 4147164k total, 1089108k used, 3058056k free, 5200k buffers<br>Swap: 2031608k total, 224k used, 2031384k free, 795340k cached<br><br> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND<br>4218 root 9 -10 0 0 0 R 100 0.0 1066:10 dlm_sendd<br>16846 root 22 0 0 0 0 R 9 0.0 173:36.82 nfsd<br>16848 root 25 0 0 0 0 R 9 0.0 171:54.71 nfsd<br>6169 jsalkeld 25 0 8400 3072 2384 R 9 0.1 0:12.12 imapd<br>8407 bjeon 25 0 14048 3112 2212 R 8 0.1 0:04.80 smbd<br>16847 root 25 0 0 0 0 R 8 0.0 174:12.58 nfsd<br>16850 root 25 0 0 0 0 R 8 0.0 172:22.35 nfsd<br>8116 bjeon 25 0 14048 3212 2312 R 8 0.1 0:14.97 smbd<br>8236 bschuetz 25 0 14048 3396 2492 R 8 0.1 0:18.72 smbd<br>8308 wuj 25 0 14048 3152 2252 R 8 0.1 0:08.19 smbd<br>8402 jacekim 25 0 14048 3340 2416 R 8 0.1 0:03.98 smbd<br>8443 wuj 25 0 14064 3172 2272 R 8 0.1 0:03.60 smbd<br>8355 wuj 25 0 14048 3260 2344 R 7 0.1 0:09.02 smbd<br>8386 ashatzko 25 0 14048 3300 2396 R 7 0.1 0:05.78 smbd<br>8417 wuj 25 0 14064 3204 2304 R 7 0.1 0:04.58 smbd<br>16845 root 25 0 0 0 0 R 7 0.0 172:15.61 nfsd<br>8432 rkhare 25 0 14064 3280 2360 R 7 0.1 0:03.95 smbd<br>8108 wuj 25 0 14048 3300 2380 R 7 0.1 0:30.34 smbd<br>8211 yjlee 25 0 14048 3380 2476 R 7 0.1 0:08.29 smbd<br>8297 bjeon 25 0 14048 3316 2380 R 7 0.1 0:13.02 smbd<br>8343 ssing 25 0 14048 3232 2320 R 7 0.1 0:08.49 smbd<br>16844 root 25 0 0 0 0 R 7 0.0 171:46.80 nfsd<br>8112 mtaghavi 25 0 14048 3408 2504 R 6 0.1 0:25.97 smbd<br>8182 wuj 25 0 14048 3200 2300 R 6 0.1 0:09.37 smbd<br>8438 atweedie 25 0 14064 3316 2412 R 6 0.1 0:03.69 smbd<br>8447 ssing 25 0 14072 3308 2384 R 6 0.1 0:01.38 smbd<br>8121 cmeire 25 0 14048 3396 2492 R 6 0.1 0:15.93 smbd<br>8223 akapur 25 0 14048 3372 2468 R 6 0.1 0:06.73 smbd<br>8241 jfromyr 25 0 14048 3376 2472 R 6 0.1 0:13.39 smbd<br>8345 jwallace 25 0 14140 3428 2476 R 6 0.1 0:05.99 smbd<br><br><br>~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~_~<br>David Ayre<br>Programmer/Analyst - Information Technlogy Services<br>Emily Carr Institute of Art and Design<br>Vancouver, B.C. Canada<br>604-844-3875 / <a href="mailto:david@eciad.ca">david@eciad.ca</a><br></div></body></html>