RE: SMP forcing crash/reboot in 4.9-STABLE

guy_at_device.dyndns.org
Date: 12/18/03

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    Date: Thu, 18 Dec 2003 16:24:14 +0100 (CET)
To: Adam Maloney <adam@whee.org>

    On 18-Dec-2003 Adam Maloney wrote:
    > We have a 4-way P3/500 Xeon system running FreeBSD. We had been running
    > 4.8-STABLE for a number of months with SMP enabled and no issues. Around
    > 25-November we moved to 4.9-STABLE. The system ran without SMP enabled
    > until Tuesday, when we enabled SMP and APIC_IO, rebuilt the kernel, and
    > rebooted. Then about every 30 minutes the system would reboot. We moved
    > back to single-processor (using the source updated on 25-Nov) and it has
    > worked since.
    >
    > So we synced source last night and tried enabling SMP again this morning.
    > We are still seeing the same problem. We have switched back to a non-SMP
    > kernel (from last night's sync) and are running fine.
    >
    > Has anyone else seen this? Any ideas where to look? There is nothing in
    > messages or dmesg about the crash, and I haven't been able to catch it at
    > the console to see if there's a message there.

    This may be related to my problem, though the symptom is different.

    Since the same time (around the end of november) i tried many times to
    build a SMP-enabled 4.9-STABLE kernel for my bi-athlon machine. It always
    hangs (no error msg, total iresponsiveness) at the end of the kernel boot
    (just before mounting filesystems).

    I then reverted my cvs tree to use -RELEASE, and all is fine.

    I did not yet try a non-SMP kernel. I'll do that asap. 

    --
        Guy
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