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Since revision 1.333 of kern_sig.c no longer uses P_WEXIT, the change
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Description

Since revision 1.333 of kern_sig.c no longer uses P_WEXIT, the change
opened a race window which can cause memory leak in signal queue.
Here we free memory for signal queue when process state is set to
PRS_ZOMBIE.

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davidxuAuthored on
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rS163599: - Document the default disk block usage unit.
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head/
sys/
kern/

rS163600

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head/sys/kern/kern_exit.c

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