Date: Sat, 13 Dec 2008 13:07:12 +0000 (UTC) From: Joseph Koshy <jkoshy@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/amd64 exception.S src/sys/dev/hwpmc hwpmc_mod.c src/sys/i386/i386 exception.s src/sys/kern subr_trap.c Message-ID: <200812131308.mBDD8KA0045992@repoman.freebsd.org>
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jkoshy 2008-12-13 13:07:12 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 exception.S
sys/dev/hwpmc hwpmc_mod.c
sys/i386/i386 exception.s
sys/kern subr_trap.c
Log:
SVN rev 186037 on 2008-12-13 13:07:12Z by jkoshy
- Bug fix: prevent a thread from migrating between CPUs between the
time it is marked for user space callchain capture in the NMI
handler and the time the callchain capture callback runs.
- Improve code and control flow clarity by invoking hwpmc(4)'s user
space callchain capture callback directly from low-level code.
Reviewed by: jhb (kern/subr_trap.c)
Testing (various patch revisions): gnn,
Fabien Thomas <fabien dot thomas at netasq dot com>,
Artem Belevich <artemb at gmail dot com>
Revision Changes Path
1.134 +10 -6 src/sys/amd64/amd64/exception.S
1.42 +61 -17 src/sys/dev/hwpmc/hwpmc_mod.c
1.122 +10 -1 src/sys/i386/i386/exception.s
1.306 +0 -8 src/sys/kern/subr_trap.c
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