cvs commit: src/sys/cam cam_periph.c cam_xpt.c

[Ian Dowse]

iedowse     2006-02-26 22:38:39 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/cam              cam_periph.c cam_xpt.c 
  Log:
  MFC: when deregistering a bus, attempt to flush out all outstanding
  operations before returning, and point the bus at a dummy cam_sim
  structure. This avoids crashes in camisr() when umass devices are
  unplugged during probing.
  
  It may however be better to simply sleep in xpt_bus_deregister()
  until all operations have completed, but it is still useful to have
  this MFC'd in the meantime.
  
  Approved by:    re (scottl)
  
  Revision   Changes    Path
  1.60.2.1   +2 -0      src/sys/cam/cam_periph.c
  1.155.2.2  +111 -8    src/sys/cam/cam_xpt.c