[Samba] Re: Intermittent "internal error: signal 11" with 3.0.24 - Samba

This is a discussion on [Samba] Re: Intermittent "internal error: signal 11" with 3.0.24 - Samba ; Hi all Follow up to this post, as it didn't seem to go through the first time. We have a common problem occurring with our Samba setups. We run 3 (identical) processing environments that each contain a Samba host sharing ...

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Thread: [Samba] Re: Intermittent "internal error: signal 11" with 3.0.24

  1. [Samba] Re: Intermittent "internal error: signal 11" with 3.0.24

    Hi all

    Follow up to this post, as it didn't seem to go through the
    first time. We have a common problem occurring with our
    Samba setups. We run 3 (identical) processing environments
    that each contain a Samba host sharing approx .5TB of data
    to 6 Wintel machines.

    Normally these hosts operate fine, though we intermittently
    experience a Samba panic (intermittent = every 2-3 days) as
    per below. Eventually this will kill the host and require a
    restart to clear.

    Our issues appear to have started when we upgraded our Samba
    to 3.0.24. We begun recording panic messages in syslog
    following the upgrade. Going up to 3.0.25a is an option
    though we'd like to do it with a bit of an idea that it will
    fix things.

    We've tried a range of things to reproduce and isolate the
    issue; load testing, re-processing batches that experienced
    problems - so far without success. Any suggestions
    appreciated.

    sambaserver:~ # gdb /usr/sbin/smbd 1778
    ....
    (gdb) bt
    #0 0xffffe410 in ?? ()
    #1 0x00000001 in ?? ()
    #2 0x00000000 in ?? ()
    #3 0xbfffcfd8 in ?? ()
    #4 0x402b36e3 in __waitpid_nocancel () from
    /lib/tls/libc.so.6
    #5 0x4025ef58 in do_system () from /lib/tls/libc.so.6
    #6 0x402268dd in system () from /lib/tls/libpthread.so.0
    #7 0x0822b612 in smb_panic (why=0x0) at lib/util.c:1608
    #8 0x08219b3f in fault_report (sig=-512) at lib/fault.c:47
    #9 0x08219b50 in sig_fault (sig=-512) at lib/fault.c:70
    #10
    #11 0x40292d43 in strlen () from /lib/tls/libc.so.6
    #12 0x40268242 in vfprintf () from /lib/tls/libc.so.6
    #13 0x40285e76 in vsnprintf () from /lib/tls/libc.so.6
    #14 0x08219956 in dbgtext (format_str=0x36373020 0x36373020 out of bounds>) at lib/debug.c:1011
    #15 0x0825b360 in oplock_timeout_handler (te=0x844d838,
    now=0xbfffdfc0, private_data=0x844e498) at smbd/oplock.c:351
    #16 0x08242d7d in run_events () at lib/events.c:102
    #17 0x080f2801 in receive_message_or_smb (buffer=0x40433008
    "", buffer_len=131137, timeout=60000) at smbd/process.c:457
    #18 0x080f4122 in smbd_process () at smbd/process.c:1649
    #19 0x082beea9 in main (argc=909586464, argv=0xbfffe334) at
    smbd/server.c:1024


    This relates to the following panic message recorded in
    syslog:

    Jun 14 15:36:56 sambaserver smbd[1778]: [2007/06/14
    15:36:56, 0] printing/print_cups.c:cups_cache_reload(85)
    Jun 14 15:36:56 sambaserver smbd[1778]: Unable to connect
    to CUPS server localhost - Connection refused
    Jun 14 15:36:56 sambaserver smbd[1778]: [2007/06/14
    15:36:56, 0] printing/print_cups.c:cups_cache_reload(85)
    Jun 14 15:36:56 sambaserver smbd[1778]: Unable to connect
    to CUPS server localhost - Connection refused
    Jun 14 15:38:02 sambaserver smbd[1778]: [2007/06/14
    15:38:02, 0] tdb/tdbutil.c:tdb_log(783)
    Jun 14 15:38:02 sambaserver smbd[1778]:
    tdb(/var/lib/samba/locking.tdb): tdb_lock failed on list
    2872 ltype=1 (Resource deadlock avoided)
    Jun 14 15:38:02 sambaserver smbd[1778]: [2007/06/14
    15:38:02, 0] smbd/close.c:close_remove_share_mode(164)
    Jun 14 15:38:02 sambaserver smbd[1778]:
    close_remove_share_mode: Could not get share mode lock for
    file Templates/TI.dmsft
    Jun 14 15:38:03 sambaserver smbd[1778]: [2007/06/14
    15:38:03, 0] tdb/tdbutil.c:tdb_log(783)
    Jun 14 15:38:03 sambaserver smbd[1778]:
    tdb(/var/lib/samba/locking.tdb): tdb_lock failed on list
    1324 ltype=1 (Resource deadlock avoided)
    Jun 14 15:38:03 sambaserver smbd[1778]: [2007/06/14
    15:38:03, 0] smbd/close.c:close_remove_share_mode(164)
    Jun 14 15:38:03 sambaserver smbd[1778]:
    close_remove_share_mode: Could not get share mode lock for
    file Templates/TI.dmsft
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] smbd/oplock.cplock_timeout_handler(351)
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/fault.c:fault_report(41)
    Jun 14 15:38:32 sambaserver smbd[1778]:
    ================================================== =============
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/fault.c:fault_report(42)
    Jun 14 15:38:32 sambaserver smbd[1778]: INTERNAL ERROR:
    Signal 11 in pid 1778 (3.0.24-SerNet-SuSE)
    Jun 14 15:38:32 sambaserver smbd[1778]: Please read the
    Trouble-Shooting section of the Samba3-HOWTO
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/fault.c:fault_report(44)
    Jun 14 15:38:32 sambaserver smbd[1778]:
    Jun 14 15:38:32 sambaserver smbd[1778]: From:
    http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/fault.c:fault_report(45)
    Jun 14 15:38:32 sambaserver smbd[1778]:
    ================================================== =============
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/util.c:smb_panic(1599)
    Jun 14 15:38:32 sambaserver smbd[1778]: PANIC (pid 1778):
    internal error
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/util.c:log_stack_trace(1706)
    Jun 14 15:38:32 sambaserver smbd[1778]: BACKTRACE: 14
    stack frames:
    Jun 14 15:38:32 sambaserver smbd[1778]: #0
    /usr/sbin/smbd(log_stack_trace+0x22) [0x822b6fb]
    Jun 14 15:38:32 sambaserver smbd[1778]: #1
    /usr/sbin/smbd(smb_panic+0x6f) [0x822b59a]
    Jun 14 15:38:32 sambaserver smbd[1778]: #2 /usr/sbin/smbd
    [0x8219b3f]
    Jun 14 15:38:32 sambaserver smbd[1778]: #3 /usr/sbin/smbd
    [0x8219b50]
    Jun 14 15:38:32 sambaserver smbd[1778]: #4 [0xffffe420]
    Jun 14 15:38:32 sambaserver smbd[1778]: #5
    /lib/tls/libc.so.6(vsnprintf+0xb6) [0x40285e76]
    Jun 14 15:38:32 sambaserver smbd[1778]: #6
    /usr/sbin/smbd(dbgtext+0x2e) [0x8219956]
    Jun 14 15:38:32 sambaserver smbd[1778]: #7 /usr/sbin/smbd
    [0x825b360]
    Jun 14 15:38:32 sambaserver smbd[1778]: #8
    /usr/sbin/smbd(run_events+0x15f) [0x8242d7d]
    Jun 14 15:38:32 sambaserver smbd[1778]: #9 /usr/sbin/smbd
    [0x80f2801]
    Jun 14 15:38:32 sambaserver smbd[1778]: #10
    /usr/sbin/smbd(smbd_process+0x10e) [0x80f4122]
    Jun 14 15:38:32 sambaserver smbd[1778]: #11
    /usr/sbin/smbd(main+0x946) [0x82beea9]
    Jun 14 15:38:32 sambaserver smbd[1778]: #12
    /lib/tls/libc.so.6(__libc_start_main+0xd0) [0x40240210]
    Jun 14 15:38:32 sambaserver smbd[1778]: #13
    /usr/sbin/smbd [0x808ceb1]
    Jun 14 15:38:32 sambaserver smbd[1778]: [2007/06/14
    15:38:32, 0] lib/util.c:smb_panic(1607)
    Jun 14 15:38:32 sambaserver smbd[1778]: smb_panic():
    calling panic action [/bin/sleep 90000]


    Versions
    Distro: SLES9 (SP3)
    Kernel: 2.6.5-7.97-bigsmp
    Samba: Version 3.0.24-SerNet-SuSE

    Samba config below ( changed, but orig followed
    sub.dom.tld format):
    ----------------------------
    [global]
    workgroup =
    domain master = no
    local master = no
    preferred master = no
    os level = 0
    username map = /etc/samba/smbusers
    map to guest = Bad User
    logon path = \\%L\profiles\.msprofile
    logon home = \\%L\%U\.9xprofile
    logon drive = P:
    security = ads
    realm =
    encrypt passwords = yes
    idmap uid = 10000-20000
    idmap gid = 10000-20000
    template primary group = "Domain Users"
    template shell = /bin/bash
    winbind separator = +
    winbind enum users = yes
    winbind enum groups = yes
    winbind use default domain = yes
    password server = prod1. prod2.
    prod3.
    log level = 3
    panic action = "/bin/sleep 90000"

    [Data]
    comment = Data directory
    path = /data01/Data
    read only = No
    inherit permissions = Yes
    directory mask = 0755
    create mask = 0755

    ----------------------------

    Much appreciated.

    Joe Murphy
    joe.murphy@clear.net.nz

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  2. Re: [Samba] Re: Intermittent "internal error: signal 11" with 3.0.24

    On Fri, Jun 15, 2007 at 10:13:34AM +1200, Joe Murphy wrote:
    > tdb(/var/lib/samba/locking.tdb): tdb_lock failed on list
    > 2872 ltype=1 (Resource deadlock avoided)


    Urgs... This should never happen. What OS do you have? Can
    you send you smb.conf? What applications are running on your
    Samba host except Samba? NFS?

    None of these would probably directly cause this, I'm just
    asking for the environment...

    Volker

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