cvs commit: src/sys/kern vfs_bio.c

Matthew Dillon dillon at
Mon Jul 7 10:31:39 PDT 2008

dillon      2008/07/07 10:31:08 PDT

DragonFly src repository

  Modified files:
    sys/kern             vfs_bio.c 
  UFS+softupdates can build up thousands of dirty 1K buffers and run out
  of buffers before it even hits the lodirtybufspace point.  The buf_daemon
  is never triggered.  This case occurs rarely but can be triggered e.g.
  by a cvs update.
  Add dirtybufcount back in and flush if it exceeds (nbuf / 2) to handle
  this degenerate case.
  Reported-by: "Sepherosa Ziehau" <sepherosa at>
  Revision  Changes    Path
  1.110     +35 -12    src/sys/kern/vfs_bio.c

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