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    SubjectRe: problem with linux 2.2.15pre4 + Rik's VM fix
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    Date

    I just booted into 2.2.15pre4 + Rik's vm fix...

    Could this vm problem be related a problem I have been seeing for a
    while sporadically:

    2.2.14 after about 2 weeks I got a slocate process stuck in
    wait_on_buffer (disk wait).

    2.2.14pre4 after about 2 days I got the same thing.

    When it's in that state, everything is ok on the machine, but anything
    that calls a "sync" never comes back. It goes into the same
    wait_on_buffer and disk wait state and can't be killed. ;(

    Could this be slocate holding some kind of buffer lock?

    Anyhow, here are the results of

    sed -ne '/gfp called/{ s/.* /EIP: [</; s/!/>]/p; }' < foo | ksymoops -m /boot/System.map-2.2.15pre4-rik
    ksymoops 2.3.3 on i686 2.2.15pre4. Options used
    -V (default)
    -k /proc/ksyms (default)
    -l /proc/modules (default)
    -o /lib/modules/2.2.15pre4/ (default)
    -m /boot/System.map-2.2.15pre4-rik (specified)

    EIP: [<c011e595>]
    Using defaults from ksymoops -t elf32-i386 -a i386
    EIP: [<c011e0f9>]
    EIP: [<c011e0f9>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e0f9>]
    EIP: [<c011e595>]
    ...lots of the same...
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    EIP: [<c011e595>]
    Warning (Oops_read): Code line not seen, dumping what data is available

    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e0f9 <do_wp_page+19/200> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    ...lots of the same...
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====
    >>EIP; c011e595 <do_anonymous_page+2d/80> <=====

    Most of the early ones happened during the boot.

    I now have my slocate set to run under strace tonight so I can see
    where it is locking up...if anyone has any ideas why it's happening or
    has seen the same thing, I would love to hear it.

    kevin
    --
    Kevin Fenzi
    MTS, tummy.com, ltd.
    http://www.tummy.com/ KRUD - Kevin's Red Hat Uber Distribution

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