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    SubjectRe: Lenovo resume from suspends hangs in i915_gpu_busy or so
    On Fr, 01 Apr 2011, Jesse Barnes wrote:
    > > Copyied from screen:
    > > Process ips-adjust (....
    > > Stack:
    > > ....
    > > ....
    > > ...
    > > Call Trace:
    > > <IRQ>
    > > ... ? tick_program_event
    > > call_sortirq
    > > do_softirq
    > > irq_exit
    > > smp_apic_timer_interrupt
    > > apic_timer_interrupt
    > > <EOI>
    > > ? _raw_spin_lock
    > > i915_gpu_busy
    > > ips_adjust
    > > ? show_cpu_temp
    > > kthread
    > > kernel_thread_helper
    > > ? kthread_worker_fn
    > > ? gs_change
    > > Code: ...
    > > (once more more or less the same as above)
    >
    > Hm, ok so on resume we're checking GPU busyness, which is normal, but
    > end up hanging on the spinlock? Do you see what scrolls by above the
    > text you took a picture of (probably a "task hung" message?).

    More than what I can see on the screen shot I cannot grasp.

    > Does this happen reliably? Does a previous kernel work ok?

    Reliable: yes
    Previous: I don't know, but I can try out some older git release.
    which one do you suggest?
    (I got the laptop recently so I don't have a long history with that one)

    Best wishes

    Norbert
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    Norbert Preining preining@{jaist.ac.jp, logic.at, debian.org}
    JAIST, Japan TeX Live & Debian Developer
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