Subject: CVS commit: [netbsd-2-0] src/sys/dev/scsipi
To: None <>
From: Havard Eidnes <>
List: source-changes
Date: 09/11/2004 12:56:41
Module Name:	src
Committed By:	he
Date:		Sat Sep 11 12:56:41 UTC 2004

Modified Files:
	src/sys/dev/scsipi [netbsd-2-0]: ss.c

Log Message:
Pull up revision 1.53 (via patch, requested by bouyer in ticket #837):
  Improve handling of memory shortage, to fix problems like:
    sd3(mpt0:0:1:0): unable to allocate scsipi_xfer
    sd3: not queued, error 12
  The theory is that other consumers of pool memory is causing
  this memory shortage in certain somewhat hard to reproduce
  This is done by giving scsipi_command an extra argument to
  optionally pass a preallocated scsipi_xfer, and allocating a
  scsipi_xfer before dequeueing a buffer in the various *start()
  functions.  If the allocation of a scsipi_xfer fails, schedule
  a callout for delayed invocation of the start function.  Also
  reserve one page for scsipi_xfer structs, to ensure that we will
  eventually have some available once pending commands complete.
  Should fix PR#25670.

To generate a diff of this commit:
cvs rdiff -r1.51 -r1.51.2.1 src/sys/dev/scsipi/ss.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.