CVS commit: [netbsd-3] src/sys/arch/alpha/alpha

[Matthias Scheler <tron%netbsd.org@localhost>]

Module Name:    src
Committed By:   tron
Date:           Sat Jul 30 17:55:54 UTC 2005

Modified Files:
        src/sys/arch/alpha/alpha [netbsd-3]: trap.c

Log Message:
Pull up revision 1.98 (requested by thorpej in ticket #629):
- 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 -r1.96 -r1.96.10.1 src/sys/arch/alpha/alpha/trap.c

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