diff options
| author | kib <kib@FreeBSD.org> | 2013-05-21 11:24:32 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-05-21 11:24:32 +0000 |
| commit | b2b2f0b7824de13c4ff93c389bf00cfa0a78cb38 (patch) | |
| tree | d5ea9e63d608b4413df87835f72df81b024daad1 /sys/amd64/amd64/mp_machdep.c | |
| parent | 5ee265a48b9d84470be16cf6a33fb09cd280a92a (diff) | |
| download | FreeBSD-src-b2b2f0b7824de13c4ff93c389bf00cfa0a78cb38.zip FreeBSD-src-b2b2f0b7824de13c4ff93c389bf00cfa0a78cb38.tar.gz | |
Fix the hardware watchpoints on SMP amd64. Load the updated %dr
registers also on other CPUs, besides the CPU which happens to execute
the ddb. The debugging registers are stored in the pcpu area,
together with the command which is executed by the IPI stop handler
upon resume.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Diffstat (limited to 'sys/amd64/amd64/mp_machdep.c')
| -rw-r--r-- | sys/amd64/amd64/mp_machdep.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c index 31dbb3f..5f4aacf 100644 --- a/sys/amd64/amd64/mp_machdep.c +++ b/sys/amd64/amd64/mp_machdep.c @@ -28,6 +28,7 @@ __FBSDID("$FreeBSD$"); #include "opt_cpu.h" +#include "opt_ddb.h" #include "opt_kstack_pages.h" #include "opt_sched.h" #include "opt_smp.h" @@ -1396,6 +1397,10 @@ cpustop_handler(void) CPU_CLR_ATOMIC(cpu, &started_cpus); CPU_CLR_ATOMIC(cpu, &stopped_cpus); +#ifdef DDB + amd64_db_resume_dbreg(); +#endif + if (cpu == 0 && cpustop_restartfunc != NULL) { cpustop_restartfunc(); cpustop_restartfunc = NULL; |
