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    SubjectRe: Bug#557262: 2.6.31+ XFS - All I/O locks up to D-state after 24-48 hours (sysrq-t+w available) - root cause found = asterisk
    Justin Piszcz wrote:
    > Found root cause-- root cause is asterisk PBX software. I use an
    > 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.
    > 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.


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      Last update: 2009-11-21 01:09    [W:0.019 / U:0.484 seconds]
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