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    SubjectRe: Nasty regression from .27.7 to .27.8: idle samba goes crazy
    On Monday, 8 of December 2008, Holger Hoffstaette wrote:
    > Hi,
    > I just encountered a nasty symptom for the second time that has started to
    > occur after updating my home server from vanilla to .8 (same
    > config).
    > A while after disconnecting a samba client, the smbd samba server
    > process goes crazy and consumes 100% CPU. From that time on it is
    > unkillable (kill -9 returns but the process continues to run). The only
    > recourse is reboot, which works without problem (i.e. unmounting the
    > served filesystems is apparently possible?). I tried to attach to the
    > process with gdb but that just hung.
    > The system is a generic old single-core P4 box with a single SATA drive,
    > Gentoo userland and Samba is 3.0.33 (in async mode). The kernel has no
    > patches or binary drivers. It has been rock solid before the update and
    > shows no other signs of weirdness in logs or otherwise. I downgraded to .7
    > for now and will see what happens, but since it worked before I am certain
    > that this is a regression in the .8 release.
    > The only commonality is a log entry by samba that seems to correlate with
    > both occurrences:
    > [2008/12/08 01:02:52, 0] lib/util_sock.c:read_data(534)
    > read_data: read failure for 4 bytes to client Error = No route to host
    > .128 is the Windows client machine (connected via a stable GigE link),
    > which I shut down pretty much exactly 30 minutes before that (any 30
    > minute timeouts in the kernel/network stack?). Both instances of these log
    > entries correlate with the CPU spikes which I noticed in my MRTG graphs.
    > Any suspects or ideas?

    Please bisect.


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      Last update: 2008-12-08 08:37    [W:0.032 / U:2.876 seconds]
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