glibc upgrade causing erratic behaviour
Issue
- After major downtime to upgrade glibc, some HP Gen8 servers show erratic behavior
- We just upgraded glibc. Most (but not all) systems had this issue where it showed erratic issues, like NFS not working (and needing hard reset). Some show bad output with top/ps/w (example below), while a few are all OK. These are identical HP Blades.
Note the total time for processes like init, etc:
top - 14:50:50 up 22 min, 1 user, load average: 1.51, 0.49, 0.17
Tasks: 643 total, 3 running, 640 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.1%us, 0.2%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 132128672k total, 1189956k used, 130938716k free, 83980k buffers
Swap: 0k total, 0k used, 0k free, 171908k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
61856 root 20 0 13536 1540 812 R 1.9 0.0 0:00.02 top
1 root 20 0 19364 1544 1232 S 0.0 0.0 9501929h init
2 root 20 0 0 0 0 S 0.0 0.0 840544,08 kthreadd
3 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
4 root 20 0 0 0 0 S 0.0 0.0 10237405h ksoftirqd/0
5 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
6 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
7 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1
8 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1
9 root 20 0 0 0 0 S 0.0 0.0 45029,09 ksoftirqd/1
10 root RT 0 0 0 0 S 0.0 0.0 300194:20 watchdog/1
11 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/2
12 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/2
13 root 20 0 0 0 0 S 0.0 0.0 300194:20 ksoftirqd/2
14 root RT 0 0 0 0 S 0.0 0.0 300194:20 watchdog/2
15 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/3
16 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/3
Environment
- Red Hat Enterprise Linux 6.4
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