Messages in this thread | | | Date | Wed, 24 Nov 2004 13:15:22 +0100 | From | Ingo Molnar <> | Subject | [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-1 |
| |
* Lee Revell <rlrevell@joe-job.com> wrote:
> > i only tried the !PREEMPT version though - does that one work for you? > > Yup, !PREEMPT works fine. Testing PREEMPT next. So far only > PREEMPT_VOLUNTARY fails to boot.
found a bug that causes !PREEMPT boot failures. The seqlock type was wrong for the !RT case, resulting in a subtle bug: write_seqlock_irqsave() didnt actually disable interrupts. This results in a deadlock scenario in where the timer interrupt interrupts update_times (which runs in softirq context). I've uploaded the -31-1 patch with this fix included to the usual place:
http://redhat.com/~mingo/realtime-preempt/
i'm cycling through the various options, but it's looking good so far, PREEMPT_NONE, PREEMPT_VOLUNTARY and PREEMPT_DESKTOP all booted up fine.
Ingo - 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/
| |