[Crash-utility] [PATCH 04/10] task_init: don't abuse pc->program_pid if !LOCAL_ACTIVE()
Use pid == 1 and /sbin/init as tt->this_task instead, pc->program_pid can't
be used.
We could probably leave tt->this_task = NO_TASK, but we need to initialize
CURRENT_CONTEXT() anyway and we need something for refresh_context(), to me
"init" looks better than (say) FIRST_CONTEXT() == swapper/0.
However, this means that /init/sbin will be always reported as "active", see
the next patch.
Signed-off-by: Oleg Nesterov <oleg(a)redhat.com>
---
task.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/task.c b/task.c
index 7b01951..fd4b700 100644
--- a/task.c
+++ b/task.c
@@ -124,7 +124,6 @@ task_init(void)
long tss_offset, thread_offset;
long eip_offset, esp_offset, ksp_offset;
struct gnu_request req;
- ulong active_pid;
if (!(tt->idle_threads = (ulong *)calloc(NR_CPUS, sizeof(ulong))))
error(FATAL, "cannot malloc idle_threads array");
@@ -493,7 +492,9 @@ task_init(void)
tt->flags &= ~(TASK_REFRESH|TASK_REFRESH_OFF);
if (ACTIVE()) {
- active_pid = REMOTE() ? pc->server_pid : pc->program_pid;
+ ulong active_pid = REMOTE() ? pc->server_pid :
+ LOCAL_ACTIVE() ? pc->program_pid :
+ 1;
set_context(NO_TASK, active_pid);
tt->this_task = pid_to_task(active_pid);
}
--
2.5.0