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    SubjectRe: Hang in fb_notifier_call_chain with nvidia framebuffer
    On Wed, 04 Oct 2006 09:26:04 -0700
    Wink Saville <> wrote:

    > Attached in the zip file is:
    > log-hang1.txt -> log showing hang
    > cfg-hang1 -> config file for hang condition
    > cfg-ok -> config file that works
    > fbmem.c -> Modifications to register_framebuffer
    > To possibly assist I turned on debugging in nvidia.c and found that it
    > hung in the call to register_framebuffer. I then added some additional
    > debug in that routine and it appears the hang occurs in the call to
    > fb_notifier_call_chain.
    > Please let me know what else maybe needed.


    - get sysrq working:

    set CONFIG_MAGIC_SYSRQ=y, rebuild, reboot
    echo 1 > /proc/sys/kernel/sysrq
    dmesg -n 8

    - make it hang

    - Hit alt-sysrq-T

    - Send us the resulting output

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      Last update: 2006-10-08 08:05    [W:0.024 / U:2.896 seconds]
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