Messages in this thread Patch in this message | | | Date | Wed, 6 Jul 2005 19:27:16 +0200 | From | Ingo Molnar <> | Subject | Re: Realtime Preemption, 2.6.12, Beginners Guide? |
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* Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote:
> > great! Do the softlockup warnings still occur? > > Yes, but in no greater a number.
could you apply the patch below, so that we can see what kind of time gap the softlockup detector encountered?
Ingo
Index: linux/kernel/softlockup.c =================================================================== --- linux.orig/kernel/softlockup.c +++ linux/kernel/softlockup.c @@ -65,8 +65,8 @@ void softlockup_tick(void) per_cpu(print_timestamp, this_cpu) = timestamp; spin_lock(&print_lock); - printk(KERN_ERR "BUG: soft lockup detected on CPU#%d!\n", - this_cpu); + printk(KERN_ERR "BUG: soft lockup detected on CPU#%d! %ld-%ld\n", + this_cpu, jiffies, timestamp); dump_stack(); #if defined(__i386__) && defined(CONFIG_SMP) nmi_show_all_regs(); - 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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