Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=006e84ee3a54e393ec6bef2a9bc891dc5bde2843 Commit: 006e84ee3a54e393ec6bef2a9bc891dc5bde2843 Parent: 5558870bfbcca10cfc7b13ab866687012ea3c9af Author: Catalin Marinas <[EMAIL PROTECTED]> AuthorDate: Tue Feb 13 13:26:21 2007 +0100 Committer: Andi Kleen <[EMAIL PROTECTED]> CommitDate: Tue Feb 13 13:26:21 2007 +0100
[PATCH] x86-64: do not always end the stack trace with ULONG_MAX It makes more sense to end the stack trace with ULONG_MAX only if nr_entries < max_entries. Otherwise, we lose one entry in the long stack traces and cannot know whether the trace was complete or not. Signed-off-by: Catalin Marinas <[EMAIL PROTECTED]> Signed-off-by: Andi Kleen <[EMAIL PROTECTED]> Cc: Andi Kleen <[EMAIL PROTECTED]> Cc: Jan Beulich <[EMAIL PROTECTED]> Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> --- arch/x86_64/kernel/stacktrace.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86_64/kernel/stacktrace.c index 6026b31..65ac2c6 100644 --- a/arch/x86_64/kernel/stacktrace.c +++ b/arch/x86_64/kernel/stacktrace.c @@ -32,7 +32,7 @@ static void save_stack_address(void *data, unsigned long addr) trace->skip--; return; } - if (trace->nr_entries < trace->max_entries - 1) + if (trace->nr_entries < trace->max_entries) trace->entries[trace->nr_entries++] = addr; } @@ -49,7 +49,8 @@ static struct stacktrace_ops save_stack_ops = { void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { dump_trace(task, NULL, NULL, &save_stack_ops, trace); - trace->entries[trace->nr_entries++] = ULONG_MAX; + if (trace->nr_entries < trace->max_entries) + trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL(save_stack_trace); - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html