CVS commit: [nathanw_sa] src/lib/libpthread/arch/i386

[Nathan J Williams <nathanw%netbsd.org@localhost>]

Module Name:    src
Committed By:   nathanw
Date:           Thu Jan  2 21:32:12 UTC 2003

Modified Files:
        src/lib/libpthread/arch/i386 [nathanw_sa]: pthread_switch.S

Log Message:
Rewrite pthread__switch() and adjust pthread__locked_switch() to
avoid storing the new saved-context pointer while still using the old
stack. This avoids a race condition with pthread__find_interrupted()
where a thread could lose its old state if it was interrupted in a
certain window in pthread__switch() or pthread__locked_switch() (the
latter was never actually observed, but appeared possible).


To generate a diff of this commit:
cvs rdiff -r1.1.2.17 -r1.1.2.18 src/lib/libpthread/arch/i386/pthread_switch.S

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