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PR/41923 CVS commit: src/sys/kern

The following reply was made to PR kern/41923; it has been noted by GNATS.

From: Manuel Bouyer <>
Subject: PR/41923 CVS commit: src/sys/kern
Date: Sun, 13 Sep 2009 14:38:20 +0000

 Module Name:   src
 Committed By:  bouyer
 Date:          Sun Sep 13 14:38:20 UTC 2009
 Modified Files:
        src/sys/kern: kern_turnstile.c
 Log Message:
 PR kern/41923: assertion "cur != owner" failed
 In the for(;;) loop of turnstile_block(), the lock owner can change while
 cur's lock is released (cur's lock is also the tschain_t's mutex).
 Remove the KASSERT about owner being invariant and try to deal with the
 fact that the owner can change instead.
 and followups.
 To generate a diff of this commit:
 cvs rdiff -u -r1.24 -r1.25 src/sys/kern/kern_turnstile.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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