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PR/38335 CVS commit: [netbsd-5] src/sys/arch/alpha/alpha
The following reply was made to PR port-alpha/38335; it has been noted by GNATS.
From: Soren Jacobsen <snj%netbsd.org@localhost>
Subject: PR/38335 CVS commit: [netbsd-5] src/sys/arch/alpha/alpha
Date: Sun, 15 Nov 2009 05:54:38 +0000
Module Name: src
Committed By: snj
Date: Sun Nov 15 05:54:38 UTC 2009
src/sys/arch/alpha/alpha [netbsd-5]: pmap.c
Pull up following revision(s) (requested by mhitch in ticket #1137):
sys/arch/alpha/alpha/pmap.c: revision 1.250
The tlb shootdown IPI can interrupt the pool_cache_get() in places that
can cause a deadlock or pool cache corruption. Take the shootdown job
queue mutex before calling pool_cache_get(), which will block the IPI
interrupts and seems to fix the remaining tlb shootdown deadlocks and
pool cache corruption I've been seeing. Should address both
PR port-alpha/38335 and PR port-alpha/42174.
To generate a diff of this commit:
cvs rdiff -u -r22.214.171.124 -r126.96.36.199 src/sys/arch/alpha/alpha/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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