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<snip>
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.
I don't know what asterisk is doing but top did run before the crashThat's obviously *not* the root cause.
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.
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