Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24

[Chuck Harding <charding@llnl.gov>]

What can be causing the following message to appear in dmesg and
how can I fix it?

BUG: scheduling with irqs disabled: kapmd/0x00000000/46
caller is schedule_timeout+0x51/0x9e
 [<c02b3bc9>] schedule+0x96/0xf6 (8)
 [<c02b43f7>] schedule_timeout+0x51/0x9e (28)
 [<c01222ed>] process_timeout+0x0/0x5 (32)
 [<c0112063>] apm_mainloop+0x7a/0x96 (24)
 [<c0115e45>] default_wake_function+0x0/0x16 (12)
 [<c0115e45>] default_wake_function+0x0/0x16 (32)
 [<c0111485>] apm_driver_version+0x1c/0x38 (16)
 [<c01126f7>] apm+0x0/0x289 (8)
 [<c01127a6>] apm+0xaf/0x289 (8)
 [<c010133c>] kernel_thread_helper+0x0/0xb (20)
 [<c0101341>] kernel_thread_helper+0x5/0xb (4)

This was also present in earlier final-V0.7.50 version I've tried
(since -00) I don't get hangs but that doesn't look like it should
be happening. Thanks.

--
Charles D. (Chuck) Harding <charding@llnl.gov>  Voice: 925-423-8879
Senior Computer Associate         ICCD            Fax: 925-423-6961
Lawrence Livermore National Laboratory      Computation Directorate
Livermore, CA USA  http://www.llnl.gov  GPG Public Key ID: B9EB6601
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-- Unburdened by the rigors of coherent thought. --
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