Module Name:	src
Committed By:	thorpej
Date:		Thu Jul 28 13:57:06 UTC 2005

Modified Files:
	src/sys/arch/alpha/alpha: machdep.c trap.c
	src/sys/arch/alpha/include: pcb.h

Log Message:
- Change FPCPU_LOCK() such that the caller is responsible for blocking
  IPIs in the MULTIPROCESSOR case.  Adjust all callers.
- In fpusave_cpu(), block IPIs for the entire duration (while we have
  CPUF_FPUSAVE set in ci_flags) to fix the deadlock that leads to
  "panic: fpsave ipi didn't", as described in PR port-alpha/26383.
  Many thanks to Michael Hitch for the analysis and initial patch which
  this one is derived from.


To generate a diff of this commit:
cvs rdiff -r1.286 -r1.287 src/sys/arch/alpha/alpha/machdep.c
cvs rdiff -r1.97 -r1.98 src/sys/arch/alpha/alpha/trap.c
cvs rdiff -r1.12 -r1.13 src/sys/arch/alpha/include/pcb.h

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