put back the stwcx. instruction to clear the reservation.
we used to have this in the old cpu_switch() until it was
if-0'd in 2003 and removed completely in 2007.
this fixes hangs I've seen where a softint thread is
blocked waiting for a mutex that is not held.
this should also fix PR 44387.
resume1:
PR kern/51995 ptrace(2) PT_RESUME is not reliable
syscallemu1:
PR kern/52012 PT_SYSCALL does not stop on syscall entry
Sponsored by <The NetBSD Foundation>
syscallemu1:
Verify that exit(2) can be intercepted with PT_SYSCALLEMU
This test is failing as PT_SYSCALL does not stop the process on syscall
entry. This renders PT_SYSCALL broken on NetBSD.
Sponsored by <The NetBSD Foundation>
Remove entries:
- add new ptrace(2) calls to lock (suspend) and unlock LWP within a process
- switch PT_WATCHPOINT* to PT_*ETDBREGS and document it, add ATF tests
- add ATF tests for PT_SYSCALL and PT_SYSCALLEMU
Sponsored by <The NetBSD Foundation>
+ 82574
- add EITR setting, that is MSI-X mode interrupt interval
+ 82575
- fix EITR value. 82575's EITR usage is the same as legacy (not NEWQUEUE)
controllers
- apply workaround which 82575's EITR does not have CNT_INGR bit
+ other NEWQUEUE controllers
- fix interrupt interval field. NEWQUEUE (include 82575) controllers'
interrupt interval field is 2:14
- use CNT_INGR bit which avoid to overwrite counter
tested 82574, 82575 and I354.
ok by msaitoh@n.o.
- mark a bunch of local things static
- export an explicit set of functions for audiobell, instead of hooking
directly into the device callbacks, and avoid non-shared headers for
the same prototypes
- s/audioprobe/audiomatch/
- use __func__
just a particular one, otherwise the kernel can take another
FPU trap when it writes back the new FCSR value.
discovered via the fesetround() bug that wrote garbage to the FCSR.
FP exceptions are enabled. fix the kernel emulation of mfmsr and mtmsr
to use the correct opcodes for these instructions. ignore PSL_FE
(the FP enable bit) in the MSR that a user program tries to set,
since it will naturally be set for FP-using processes but
we can't let the user process manage that bit.
fix the dtrace "args" variable to return correct values.
simplify the invop handlers a bit by changing the second argument
from a pointer into the stack to a pointer to the trapframe.
chs