> Update: We (Google) set /proc/sys/net/ipv4/tcp_retrans_collapse to "0"
> on our webservers. Now, instead of a kernel panic, they seem to
> spontaneously reboot without any errors or explanation in
> /var/log/messages. For us, this is a significant improvement over the
Ok that fits the original diagnosis that someone had passed a freed buffer
down that part of the network stack. The question remains who.
> Any suggestion on how we can collect more information about why the
> machines are rebooting?
Its probably going to be a case of adding printk and other traps to a box
if Dave doesn't do it I'll have a look at where to drop some diagnostics in
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This archive was generated by hypermail 2b29 : Mon Jan 31 2000 - 21:00:14 EST