Paul Saab wrote:
ps          2006-04-08 02:23:27 UTC

  FreeBSD src repository

  Modified files:
sys/dev/amr amr.c amr_pci.c amrvar.h Log:
  Close a pesky race where after checking the BUSY flag in amr_wait_command,
  the completion of the command can occur before tsleep is called and
  the command ends up blocking forever since the wakeup has already
  been called.
Submitted by: ups Revision Changes Path
  1.76      +19 -6     src/sys/dev/amr/amr.c
  1.35      +1 -0      src/sys/dev/amr/amr_pci.c
  1.31      +1 -0      src/sys/dev/amr/amrvar.h

This would be a good audit task to do on the whole kernel. There are very few legitimate uses of tsleep() these days.

--
Nate
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