lkml.org 
[lkml]   [2009]   [Jan]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    Subjectsync-Regression in 2.6.28.2?
    I recently installed 2.6.28.2 on our postfix/dovecot-based
    mailboxserver. Previously, 2.6.28 and 2.6.28.1 have been running there
    without a hitch.

    Now with 2.6.28.2 I had two major lockups: All writes to the users'
    Maildirs (on ext4) would stall, the load would rise, "sync" would never
    return.

    I had to "reboot -f -n" to get the machine back. All hanging processes
    were unkillable, even with kill -9.

    There was NOTHING in dmesg, nothing in the log either. No indication
    of filesystem errors or anything.

    Lookin at the
    http://www.eu.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.2
    I see changes to

    fs: sys_sync fix
    fs: sync_sb_inodes fix
    fs: remove WB_SYNC_HOLD

    Since the mailserver uses sync() extensively (both dovecot and
    postfix), maybe that's the culprit?

    Note: I'm really just guessing here!
    Back to 2.6.28.1 for now.

    --
    Ralf Hildebrandt Ralf.Hildebrandt@charite.de
    Charite - Universitätsmedizin Berlin Tel. +49 (0)30-450 570-155
    Geschäftsbereich IT | Abt. Netzwerk Fax. +49 (0)30-450 570-962
    Hindenburgdamm 30 | 12200 Berlin
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2009-01-27 10:51    [W:0.026 / U:62.184 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site