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author | Ingo Molnar <mingo@elte.hu> | 2009-11-21 14:07:23 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-11-21 14:07:23 +0100 |
commit | 96200591a34f8ecb98481c626125df43a2463b55 (patch) | |
tree | 314c376b01f254d04f9aaf449b1f9147ad177fa6 /arch/x86/kernel/kgdb.c | |
parent | 7031281e02bf951a2259849217193fb9d75a9762 (diff) | |
parent | 68efa37df779b3e04280598e8b5b3a1919b65fee (diff) | |
download | talos-op-linux-96200591a34f8ecb98481c626125df43a2463b55.tar.gz talos-op-linux-96200591a34f8ecb98481c626125df43a2463b55.zip |
Merge branch 'tracing/hw-breakpoints' into perf/core
Conflicts:
arch/x86/kernel/kprobes.c
kernel/trace/Makefile
Merge reason: hw-breakpoints perf integration is looking
good in testing and in reviews, plus conflicts
are mounting up - so merge & resolve.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/kgdb.c')
-rw-r--r-- | arch/x86/kernel/kgdb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 8d82a77a3f3b..34e86b67550c 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -43,6 +43,7 @@ #include <linux/smp.h> #include <linux/nmi.h> +#include <asm/debugreg.h> #include <asm/apicdef.h> #include <asm/system.h> @@ -434,6 +435,11 @@ single_step_cont(struct pt_regs *regs, struct die_args *args) "resuming...\n"); kgdb_arch_handle_exception(args->trapnr, args->signr, args->err, "c", "", regs); + /* + * Reset the BS bit in dr6 (pointed by args->err) to + * denote completion of processing + */ + (*(unsigned long *)ERR_PTR(args->err)) &= ~DR_STEP; return NOTIFY_STOP; } |