Re: P4 HT with SMP kernel, FreeBSD 5.2.1-p4 problem

From: Claudiu Dragalina-Paraipan (clau_at_reversedhell.net)
Date: 04/03/04

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    Date: Sat, 03 Apr 2004 20:28:08 +0300
To: freebsd-hackers@freebsd.org

    Hello,

    I come back with a little more informations.
    It seems that changing the hw.acpi.disable_on_poweroff from default
    value of 1 to 0 fixes the problem. At least for now I don't get the
    panics on shutdown anymore.

    Also, while running the kernel with WITNESS and INVARIANTS, I didn't get
      the panics (as I already said), and I get this in /var/log/messages:

    Apr 3 17:28:59 oxygen kernel: lock order reversal
    Apr 3 17:28:59 oxygen kernel: 1st 0xc0691680 UMA lock (UMA lock) @
    /usr/src/sys/vm/uma_core.c:1200
    Apr 3 17:28:59 oxygen kernel: 2nd 0xc0c31100 system map (system map) @
    /usr/src/sys/vm/vm_map.c:2210
    Apr 3 17:28:59 oxygen kernel: Stack backtrace:
    Apr 3 17:37:03 oxygen kernel: lock order reversal
    Apr 3 17:37:03 oxygen kernel: 1st 0xc2a54ad4 vm object (vm object) @
    /usr/src/sys/vm/swap_pager.c:1323
    Apr 3 17:37:03 oxygen kernel: 2nd 0xc0690b00 swap_pager swhash
    (swap_pager swhash) @ /usr/src/sys/vm/swap_pager.c:1838
    Apr 3 17:37:03 oxygen kernel: 3rd 0xc0c38738 vm object (vm object) @
    /usr/src/sys/vm/uma_core.c:873
    Apr 3 17:37:03 oxygen kernel: Stack backtrace:

    This appear once, shortly after a startup.

    Best regards.

    Claudiu Dragalina-Paraipan wrote:
    > Hello,
    >
    > I have a Pentium 4 2.8E (with HT), and an Intel 865GBF motherboard.
    > After I made a bios upgrade I have this problem with it: every time I do
    > a reboot or a shutdown the kernel hangs. Sometimes it gives a specific
    > error message, sometimes the last lines of text are garbage, and rarely
    > it just resets before it should.
    > Seems that it happens before the file system is unmounted, because every
    > next boot I have problems with it. Until now I didn't lose any important
    > file, but I assume that this can happen giving this situation.
    > Also, this does not happen if I compile a kernel without SMP support, or
    > if I disable HT from bios (with SMP or not).
    > Running a kernel with INVARIANTS and WITNESS seems to fix this problem too.
    >
    > I have attached a dmesg result after a boot -v.
    > Please let me know what other informations you need for solving this
    > situation.
    >
    > With respect,
    >
    > 

    -- 
Claudiu Dragalina-Paraipan
Reversed Hell Networks / reversedhell.net
e-mail: clau@reversedhell.net
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gpg --keyserver gpg.mit.edu --recv-keys BFACC244

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