[ARCHIVE DEBUG 10/13] audit_debug: bark on impossible reserve process conditions in while loop
Debug the expected impossibility of the audit_backlog_queue reserve
being used up.
Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com>
---
kernel/audit.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/kernel/audit.c b/kernel/audit.c
index d6f4763..9e9c02b 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1527,6 +1527,12 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx,
gfp_t gfp_mask,
atomic_inc(&audit_overflows);
overflow_counted = 1;
}
+ if (reserve) {
+ pr_warn("( %lu %lu )"
+ " Qstuck apid=%d pid=%d comm=%s type=%d reserve=%d Qlen=%d\n",
+ timeout_start, jiffies-timeout_start,
+ audit_pid, current->pid, current->comm, type, reserve,
skb_queue_len(&audit_skb_queue));
+ }
if (gfp_mask & __GFP_WAIT && audit_backlog_wait_time) {
long sleep_time;
@@ -1534,6 +1540,12 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx,
gfp_t gfp_mask,
atomic_inc(&audit_waiters);
waiter = 1;
}
+ if (reserve) {
+ pr_warn("( %lu %lu )"
+ " Qreallystuck apid=%d pid=%d comm=%s type=%d reserve=%d Qlen=%d\n",
+ timeout_start, jiffies-timeout_start,
+ audit_pid, current->pid, current->comm, type, reserve,
skb_queue_len(&audit_skb_queue));
+ }
sleep_time = timeout_start + audit_backlog_wait_time - jiffies;
if (sleep_time > 0) {
sleep_time = wait_for_auditd(sleep_time);
--
1.7.1