CVS commit: src/sys/arch/i386/i386

[David Laight <dsl%netbsd.org@localhost>]

Module Name:    src
Committed By:   dsl
Date:           Sun Jan 10 15:21:36 UTC 2010

Modified Files:
        src/sys/arch/i386/i386: trap.c vector.S

Log Message:
If we fault on the 'iret' during return to userpace (eg if %eip is outside
the bounds of %cs) then hack the stack to contain a normal fault frame
for the signal setup code (etc).
Previously the code assumed that the original user trap frame was still
present - at it is for faults when loading the segment registers.


To generate a diff of this commit:
cvs rdiff -u -r1.250 -r1.251 src/sys/arch/i386/i386/trap.c
cvs rdiff -u -r1.49 -r1.50 src/sys/arch/i386/i386/vector.S

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