Messages in this thread | | | Date | Mon, 14 Nov 2005 16:17:04 -0800 | From | Andrew Morton <> | Subject | Re: 2.6.14 X spinning in the kernel |
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Badari Pulavarty <pbadari@us.ibm.com> wrote: > > My 2-cpu EM64T machine started showing this problem again on 2.6.14. > On some reboots, X seems to spin in the kernel forever. > > sysrq-t output shows nothing. > > X R running task 0 3607 3589 3903 > (L-TLB) > > top shows: > 3607 root 25 0 0 0 0 R 99.1 0.0 262:04.69 X > > > So, I wrote a module to do smp_call_function() on all CPUs > to show stacks on them. CPU0 seems to be spinning in exit_mmap(). > I did this multiple times to collect stacks few times. > > Is this a known issue ?
Nope. Maybe your vma list has a loop in it, in remove_vma()? slab debugging would detect that, due to the repeated kmem_cache_free(vm_area_cachep, vma);
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