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    SubjectBUG: sleeping function called from invalid context at /usr/local/src/linux-3.4-rc1/include/linux/freezer.h:46

    commit a0acae0e added a might_sleep() to try_to_freeze() in
    This leads to the following BUG message each time a process is started
    when compiled with CONFIG_DEBUG_ATOMIC_SLEEP=y

    |BUG: sleeping function called from invalid context at /usr/local/src/linux-3.4-rc1/include/linux/freezer.h:46
    |in_atomic(): 0, irqs_disabled(): 128, pid: 619, name: rc
    |no locks held by rc/619.
    |irq event stamp: 12235
    |hardirqs last enabled at (12234): [<80334684>] _raw_spin_unlock_irq+0x2c/0x58
    |hardirqs last disabled at (12235): [<8000df0c>] ret_fast_syscall+0xc/0x3c
    |softirqs last enabled at (11761): [<80021d00>] __do_softirq+0x140/0x160
    |softirqs last disabled at (11754): [<8002221c>] irq_exit+0x60/0xb4
    |[<800118b8>] (dump_backtrace+0x0/0x10c) from [<80330b90>] (dump_stack+0x18/0x1c)
    | r6:00000000 r5:00000002 r4:9ef66000 r3:9f86bb80
    |[<80330b78>] (dump_stack+0x0/0x1c) from [<8003ecb0>] (__might_sleep+0x110/0x130)
    |[<8003eba0>] (__might_sleep+0x0/0x130) from [<80010918>] (do_signal+0x8c/0x584)
    | r4:9ef67fb0
    |[<8001088c>] (do_signal+0x0/0x584) from [<80011340>] (do_notify_resume+0x20/0x64)
    |[<80011320>] (do_notify_resume+0x0/0x64) from [<8000df64>] (work_pending+0x24/0x28)
    | r4:00000000 r3:00000000

    I don't have the slightest idea how this should be fixed.

    Lothar Waßmann

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      Last update: 2012-04-04 09:05    [W:0.024 / U:10.436 seconds]
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