Date: Sun, 12 Sep 2010 14:12:16 +0000 (UTC) From: Rui Paulo <rpaulo@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/dtrace fasttrap.c src/sys/cddl/contrib/opensolaris/uts/intel/dtrace fasttrap_isa.c Message-ID: <201009121412.o8CECSI8077130@repoman.freebsd.org>
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rpaulo 2010-09-12 14:12:16 UTC
FreeBSD src repository
Modified files:
sys/cddl/contrib/opensolaris/uts/common/dtrace fasttrap.c
sys/cddl/contrib/opensolaris/uts/intel/dtrace fasttrap_isa.c
Log:
SVN rev 212494 on 2010-09-12 14:12:16Z by rpaulo
Revamp locking a bit. This fixes three problems:
* processes now can't go away while we are inserting probes (fixes a panic)
* if a trap happens, we won't be holding the process lock (fixes a hang)
* fix a LOR between the process lock and the fasttrap bucket list lock
Thanks to kib for pointing some problems.
Sponsored by: The FreeBSD Foundation
Revision Changes Path
1.9 +23 -12 src/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
1.4 +3 -6 src/sys/cddl/contrib/opensolaris/uts/intel/dtrace/fasttrap_isa.c
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