Messages in this thread | | | Date | Sat, 12 Jul 2003 13:10:03 -0400 | From | Marc Heckmann <> | Subject | 2.4.21 smp: system lockup |
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Hi,
I recently experienced a lockup on an SMP 2.4.21 kernel (vanilla).
The machine was under very heavy IO at the time. (a full backup was in progress). gzipped Alt+sysrq+t output is attached. I forgot Alt+sysrq+P unfortunatly.
iptables was still functional, it still responded to pings, but everything else was locked up. obviously sysrq was still working. I managed to reboot it with sysrq+b over the serial line.
the machine has been in production for a while and has run in the past for almost 2 months w/o any problems, so I don't believe it's hardware related.
A similar lockup happened once with the redhat 2.4.20-13.9 kernel. I blamed that on all the extra patches present and switched to 2.4.21 hoping that it would alleviate the problem.
PS: I'm not an linux-kernel so please CC me directly.
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