Re: [Linux-ia64] kernel update (relative to v2.5.67)

David Mosberger
2003-04-15T22:27:57Z

>>>>> On Tue, 15 Apr 2003 18:01:48 +0900 (JST), Takayoshi Kochi <kochi@hpc.bs1.fc.nec.co.jp> said:

>> Thanks to Alex's fixes for PCI segment support, we could boot
>> 2.5.67 kernel on Tiger. But a strange thing is happening. Only
>> cpu0 & 1 are getting timer interrupts and cpu 2 & 3 aren't. This
>> problem is reproducible and we see this phenomenon after every
>> boot. It seems that these cpus stop receiving timer interrupts
>> after a very short while. Has anyone seen this?

I tried quickly on a 4-way rx5670. It looks fine (so far):

$ uname -r
2.5.67
$ cat /proc/interrupts |grep timer
239: 845908 846158 846460 846390 LSAPIC timer

However, I have been seeing what appears to be deadlocks in the VFS
layer (best guess). I don't know yet what triggers it and it triggers
at variable rates (sometimes a couple of minutes, sometimes a couple
of hours between occurrences), but perhaps it's related to what you're
seeing.

--david