On Sat, 21 Nov 2009, Faidon Liambotis wrote:
Justin Piszcz wrote:
> Found root cause-- root cause is asterisk PBX software. I use an
SPA3102.
When someone called me, they accidentally dropped the connection, I called
them back in a short period. It is during this time (and the last time)
this happened that the box froze under multiple(!) kernels, always when
someone was calling.
<snip>
I don't know what asterisk is doing but top did run before the crash
and asterisk was using 100% CPU and as I noted before all other processes
were in D-state.
When this bug occurs, it freezes I/O to all devices and the only way to
recover
is to reboot the system.
That's obviously *not* the root cause.
It's not normal for an application that isn't even privileged to hang
all I/O and, subsequently everything on a system.
This is almost probably a kernel issue and asterisk just does something
that triggers this bug.
Regards,
Faidon
It is possible although I tried with several kernels (2.6.30.[0-9] &
2.6.31+ (never had a crash with earlier versions, I installed asterisk long
ago) but it always used to be 1.4.x until recently.. Nasty bug :\
Justin.
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