Red Hat Bugzilla – Bug 203033
kernel errors: /proc/interrupts & irqbalance
Last modified: 2007-11-30 17:07:27 EST
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Description of problem:
The virtual file /proc/interrupts seemed to have no inode reference. ls -l on /proc reported the interrupts file, but no permissions or related information. ls -l /proc/interrupts hung the ls process.
The inode issue for /proc/interrupts caused irqbalance and klogd to overwhelm the CPU (using over 90% for each process) and fill the logs.
To correct the issue, I did the following:
1) stop klogd / syslogd
2) free /var disk space
3) stop selinux (was set to enforced)
Immediately afterward, the /proc/interrupts inode returned and the system began working correctly again.
Version-Release number of selected component (if applicable):
Using standard RHEL4U1 distribution
Steps to Reproduce:
Sorry, but this is a production environment, I don't want to reproduce this problem.
ok, well if this happens again hopefully we can get more to go on. The 'ls -l'
that hung, could you please run as: 'strace ls -l'. Then when that hangs, do
alt-sysrq-t, so we can see where it is stuck. Thanks.
There has been no reply in over a year, so I'm closing this. If you have the
needed data, please attach it to this bug and reopen it.