Messages in this thread | | | Date | Tue, 28 Jun 2005 15:16:33 -0700 (PDT) | From | Chuck Harding <> | Subject | Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24 |
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On Tue, 28 Jun 2005, Ingo Molnar wrote:
> > * Ingo Molnar <mingo@elte.hu> wrote: > >> * Steven Rostedt <rostedt@goodmis.org> wrote: >> >>> Although turning off apm works, this is a fix to the symptom and not a >>> cure. Has someone already taken a look at this code? Since >>> apm_bios_call_simple calls local_save_flags and afterwards >>> raw_lock_irq_restore is then called. Shouldn't that have been >>> raw_local_save_flags? >> >> ah, indeed. I fixed this bug and have uploaded the -50-26 patch. >> Chuck, does this fix the APM problems for you? > > i've also uploaded -50-27 in which i've improved the irq-flags debugging > code. They are activated if CONFIG_DEBUG_PREEMPT is enabled, and can > come in two variants of kernel messages: > > BUG: bad raw irq-flag value 80000000, test/3810! > BUG: bad soft irq-flag value 00000202, test/3810! > > so we should now be able to detect mismatches of irq flags right where > they occur. > > Ingo
Ack!! I didn't have that enabled so I am rebuilding again. One thing I've noticed is that sox seems to be hanging when it is trying to play a .wav file (for system beeps) and there aren't any error messages about what might be going on.
-- 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 ------------------ http://tinyurl.com/5w5ey ----------------------- -- If I knew what I was doing...I'd be dangerous... -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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