Enhance the debugging information in check_mm() by including the
process name and PID when reporting bad rss-counter states. This
helps identify which process is associated with the memory accounting
issue.
Signed-off-by: Xuanye Liu <liuqiye2025@163.com>
---
kernel/fork.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/kernel/fork.c b/kernel/fork.c
index cfe2f1df5f27..e02fa515b77c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -584,9 +584,12 @@ static void check_mm(struct mm_struct *mm)
for (i = 0; i < NR_MM_COUNTERS; i++) {
long x = percpu_counter_sum(&mm->rss_stat[i]);
- if (unlikely(x))
- pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld\n",
- mm, resident_page_types[i], x);
+ if (unlikely(x)) {
+ pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld Comm:%s Pid:%d\n",
+ mm, resident_page_types[i], x,
+ current->comm,
+ task_pid_nr(current));
+ }
}
if (mm_pgtables_bytes(mm))
--
2.43.0