Messages in this thread | | | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19 | From | Fernando Lopez-Lezcano <> | Date | 02 Dec 2004 17:41:58 -0800 |
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On Wed, 2004-12-01 at 08:20, Ingo Molnar wrote: > * Ingo Molnar <mingo@elte.hu> wrote: > > > ok, this could be ACPI CPU-sleep related. Could you disable all ACPI > > options in your .config (as a workaround), and re-check whether the > > xruns still occur? > > i think i found the bug - it's an upstream ACPI bug. Does the patch > below (or the -31-19 kernel, which i've just uploaded) fix the xruns?
I'm trying unsuccessfully to boot my dual processor athlon into an smp V0.7.31-20 patched kernel, with PREEMPT_DESKTOP (has not booted correctly with realtime preemption compiled in for a long time):
(copied from the screen)
BUG: scheduling while atomic: swapper/0x10000000/1 caller is preempt_schedule_irq+0x34/0x50 [<c0105303>] dump_stack+-x23/0x30 (20) [<c03726dc>] __schedule+0xd5c/0xdb0 (124) [<c0372904>] preempt_schedule_irq+0x34/0x50 (12) [<c010429b>] need_resched+0x20/0x29 (-7256) ------- |preempt_count: 10000001 1-level deep critical section nesting .. [<c014610d>] .... preint_tracs+0x1d/0x60 .....[<c0105303>] .. ( <= dump_stack+0x23/0x30) BUG at kernel/latency.c: 918! -------- invalid operand: 0000 [#1] PREEMPT SMP
Tried booting with softirq-preempt=1 hardirq-preempt=0 with no change.
The matching uniprocessor kernel boots fine. -- Fernando
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