Filippo Valsorda wrote: > Sometimes the hang lasts seconds, sometimes minutes. During the hang > everything is unresponsive except the kernel: network traffic drops, > serial console is stuck, ssh is stuck and eventually times out, > sometimes other applications running on the machine notice that "time > jumped forwards", ICMP ping works, trying to ssh in manages to open a > connection but no banner is ever received. Essentially, userspace > doesn't get any CPU time. Most of the times Camlistore fails to start > with a TLS timeout, sometimes it manages to carry on.
ktrace -t cnst may be interesting. kdump -TR should make it easy to spot the syscalls around the pause.
