Description of problem:
    During the execution of the frysk testsuite, a kernel oops was triggered,
    causing the entire box to hang.  I chose severity high because this problem
    causes a total crash of the box, kernel panic without syncing.

Version-Release number of selected component (if applicable):


How reproducible:
    Reproducing this problem has been difficult at best.  It occurs every now
    and then, with no real indication of frequency due to it not having been
    triggered more than once every 2-3 weeks.

Steps to Reproduce:
1. Run frysk testsuite (using make -k check)
2. If problem does not occur, repeat step 1 (sometimes MANY times)
  
Actual results:
IP is at 0x0
eax: c475efa0   ebx: 00000000   ecx: f7e5eb80   edx: c475efa0
esi: c2402380   edi: 00000002   ebp: 00000000   esp: c077afc8
ds: 007b   es: 007b   ss: 0068
Process funit-child (pid: 30778, ti=c077a000 task=f7e06630 task.ti=e9e24000)
Stack: c04316e7 c24023fc 00000000 00000008 c043176b c04276d4 00000001
c072bb28
      c042762c e9e24f8c e9e24000 00000046 bfa29b00 c04067d7
Call Trace:
[<c04316e7>] __rcu_process_callbacks+0xf2/0x15a
[<c043176b>] rcu_process_callbacks+0x1c/0x38
[<c04276d4>] tasklet_action+0x4b/0xa4
[<c042762c>] __do_softirq+0x5d/0xba
[<c04067d7>] do_softirq+0x59/0xb1
[<c0415cf0>] smp_apic_timer_interrupt+0x74/0x80
[<c0405018>] apic_timer_interrupt+0x28/0x30
=======================
Code:  Bad EIP value.
EIP: [<00000000>] 0x0 SS:ESP 0068:c077afc8
<0>Kernel panic - not syncing: Fatal exception in interrupt

Expected results:
    Successful completion of the frysk testsuite, without kernel panic.

Additional info:
    This problem has been extremely difficult to reproduce (so far).  It is not
    at all certain that Frysk has anything to do with the problem, nor is it
    certain that anything used by Frysk (e.g. utrace) can be blamed.  It is
    however a strict fact that this problem has only occurred so far during or
    shortly after running the Frysk test suite.