CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2010/09/24 07:21:30
Modified files:
sys/arch/amd64/amd64: genassym.cf mutex.S
sys/arch/amd64/include: cpu.h
sys/arch/i386/i386: genassym.cf mutex.S
sys/arch/i386/include: cpu.h
sys/kern : kern_rwlock.c sched_bsd.c subr_xxx.c
sys/sys : rwlock.h
Log message:
Add stricter asserts to DIAGNOSTIC kernels to help catch mutex and
rwlock misuse. In particular, this commit makes the following
changes:
1. i386 and amd64 now count the number of active mutexes so that
assertwaitok(9) can detect attempts to sleep while holding a mutex.
2. i386 and amd64 check that we actually hold mutexes when passed to
mtx_leave().
3. Calls to rw_exit*() now call rw_assert_{rd,wr}lock() as
appropriate.
ok krw@, oga@; "sounds good to me" deraadt@; assembly bits double
checked by pirofti@
