Bug #1182
closed
intr 11 livelock with SMP
0%
Description
Hi,
UP works perfectly, SMP has this intr 11 livelock problem, which slows
it pretty down, so that network does not work. I post output of dmesg
for both UP and SMP as well as the output of vmstat -vi. Maybe those
information are helpful to someone :). I also tried SMP with a recent
kernel (the outputs below are of a kernel which is a few month old), but
it's even worse; it stops at "intr 7 livelocked limit engaged" during
ATA probing.
Looking at "vmstat -vi" it's obvious that the problem is with atapci1.
Also notably is the huge difference of "irq0: clk", which is ~1600 for
UP and ~13000 for SMP. I don't know exactly what rate means here, but
if it means interrupts/second and it's the clock interrupt which usually
fires at 1000 Hz, then something is seriously wrong.
Regards,
MichaelFiles
Updated by hasso over 15 years ago
Try to compile SMP kernel without IO_APIC option.
Updated by sepherosa over 15 years ago
There are four cases could be tested:
compile a kernel w/ IO_APIC
boot w/ ACPI
boot w/o ACPI
compile a kernel w/o IO_APIC
boot w/ ACPI
boot w/o ACPI
Best Regards,
sephe
Updated by mneumann over 15 years ago
Am 17.12.2008 06:52, schrieb Sepherosa Ziehau:
> On Wed, Dec 17, 2008 at 5:00 AM, Michael Neumann<mneumann@ntecs.de>
wrote:
>> Am 16.12.2008 21:36, schrieb Hasso Tepper:
>>> Hasso Tepper<hasso@estpak.ee> added the comment:
>>>
>>> Try to compile SMP kernel without IO_APIC option.
>>>
>
> There are four cases could be tested:
> compile a kernel w/ IO_APIC
> boot w/ ACPI
> boot w/o ACPI
>
> compile a kernel w/o IO_APIC
> boot w/ ACPI
> boot w/o ACPI
Yes, I tried them all. But it didn't help.
Regards,
Michael
Updated by corecode about 15 years ago
could you please post the output of mptable(1)?
Updated by swildner over 12 years ago
- Description updated (diff)
- Status changed from New to Closed
- Assignee deleted (
0)
Assume it is fixed with all the recent interrupt work. If it still occurs, please reopen.