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Message-Id: <200209112056.g8BKu6MU049945@freefall.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 11 Sep 2002 13:56:06 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/kern kern_ktrace.c
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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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