Date: Wed, 11 Sep 2002 13:56:06 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_ktrace.c Message-ID: <200209112056.g8BKu6MU049945@freefall.freebsd.org>
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jhb 2002/09/11 13:56:06 PDT
Modified files:
sys/kern kern_ktrace.c
Log:
- Change ktrace genio events to only copy up to ktr_geniosize bytes of a
transfer to a malloc'd buffer and use that bufer for the ktrace event.
This means that genio ktrace events no longer need to be synchronous.
- Now that ktr_buffer isn't overloaded to sometimes point to a cached uio
pointer for genio requests and always points to a malloc'd buffer if not
NULL, free the buffer in ktr_freerequest() instead of in
ktr_writerequest(). This closes a memory leak for ktrace events that
used a malloc'd buffer that had their vnode ripped out from under them
while they were on the todo list.
Suggested by: bde (1, in principle)
Revision Changes Path
1.75 +18 -18 src/sys/kern/kern_ktrace.c
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