Messages in this thread |  | | | Date | Sat, 21 Nov 2009 01:44:24 +0200 | | From | Faidon Liambotis <> | | Subject | Re: Bug#557262: 2.6.31+2.6.31.4: XFS - All I/O locks up to D-state after 24-48 hours (sysrq-t+w available) - root cause found = asterisk |
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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
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