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PR/42174 CVS commit: src/sys/arch/alpha/alpha

The following reply was made to PR port-alpha/42174; it has been noted by GNATS.

From: "Michael L. Hitch" <>
Subject: PR/42174 CVS commit: src/sys/arch/alpha/alpha
Date: Mon, 9 Nov 2009 04:31:04 +0000

 Module Name:   src
 Committed By:  mhitch
 Date:          Mon Nov  9 04:31:03 UTC 2009
 Modified Files:
        src/sys/arch/alpha/alpha: pmap.c
 Log Message:
 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-amiga/38335 and PR port-amiga/42174.
 To generate a diff of this commit:
 cvs rdiff -u -r1.249 -r1.250 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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