On Fri, 15 Apr 2005, Ingo Molnar wrote:
> * William Weston <[email protected]> wrote:
>
> > On Wed, 13 Apr 2005, Ingo Molnar wrote:
> >
> > > what are you using kprobes for? Do you get lockups even if you disable
> > > kprobes?
> >
> > Various processes will lockup on the P4/HT system, usually while under
> > some load. The processes cannot be killed. X will lockup once or
> > twice a day (which means my console, and thus sysrq, are toast), but I
> > can still ssh in. Nothing is logged by the kernel. Are there any
> > post-lockup forensics that can be performed before I reboot?
>
> could you try the -44-03 patch:
>
> http://redhat.com/~mingo/realtime-preempt/older/realtime-preempt-2.6.12-rc2-V0.7.44-03
>
> this doesnt have the plist changes yet. Is this one more stable?
With 2.6.12-rc2-V0.7.44-03, the P4/HT box has been stable all day. I'm
seeing another BUG on boot, not kprobes related this time:
Freeing unused kernel memory: 192k freed
logips2pp: Detected unknown logitech mouse model 86
input: ImExPS/2 Logitech Explorer Mouse on isa0060/serio1
BUG: kstopmachine:1054 RT task yield()-ing!
[<c0103dba>] dump_stack+0x23/0x25 (20)
[<c030ff1f>] yield+0x67/0x69 (20)
[<c0142a44>] stop_machine+0xa4/0x15e (40)
[<c0142b2d>] do_stop+0x15/0x77 (20)
[<c0132c5b>] kthread+0xab/0xd3 (48)
[<c0100fe9>] kernel_thread_helper+0x5/0xb (563617812)
---------------------------
| preempt count: 00000001 ]
| 1-level deep critical section nesting:
----------------------------------------
.. [<c013bca6>] .... print_traces+0x1b/0x52
.....[<c0103dba>] .. ( <= dump_stack+0x23/0x25)
ns83820.c: National Semiconductor DP83820 10/100/1000 driver.
eth0: ns83820.c: 0x22c: 49001186, subsystem: 1186:4900
eth0: ns83820 v0.20: DP83820 v1.2: 00:50:ba:37:d4:bc io=0xff8ff000 irq=18 f=sg
I'm also seeing an unlikely wakeup time:
( X-3581 |#1): new 2533412143 us maximum-latency wakeup.
Otherwise, this on seems very stable.
Best Regards,
--William Weston
--
/* William Weston <[email protected]> */
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