cvs commit: src/sys/kern vfs_bio.c

Peter Edwards peadar at
Thu Sep 29 03:37:21 PDT 2005

peadar      2005-09-29 10:37:20 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_bio.c 
  Close a race in biodone(), whereby the bio_done field of the passed
  bio may have been freed and reassigned by the wakeup before being
  tested after releasing the bdonelock.
  There's a non-zero chance this is the cause of a few of the crashes
  knocking around with biodone() sitting in the stack backtrace.
  Reviewed By: phk@
  Revision  Changes    Path
  1.494     +5 -3      src/sys/kern/vfs_bio.c

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