[IA64] Only unwind non-running tasks.

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Unwinding a running task has proven problematic.

In one instance, the running task was attempting to unwind itself and
received an interrupt between when get_wchan allocated local variables on
the stack and when unw_init_from_blocked_task was called which resulted
in unw_init_frame_info to place this tasks task_struct pointer over the
switch stack's ar_bspstore entry.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

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Robin Holt 2007-05-18 13:46:52 -05:00 • committed by Tony Luck

parent e2e6fe7bb6

commit 6ae384884d

1 changed files with 5 additions and 0 deletions

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arch/ia64/kernel/process.c

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