PROBLEM: (EVT0448343, 84497, 85459) (PATCH ID: OSF510-171)
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This patch corrects a problem where attaching to a program
with a debugger will cause periodic timers to be lost and
will make the program hang.


PROBLEM: (87587, 87846) (PATCH ID: OSF510-260)
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This patch fixes a kernel memory fault as a 
result of a race condition that occurs when  a
process is exiting.
A typical stack trace may look like the following:

Node panic: kernel memory fault with stack_trace:
stop_secondary_cpu panic event_timeout printf panic trap _xentmm
procfs_ioctl vn_ioctl procfs_ioctl_interface ioctl_base syscall _xsyscall