On 5/8/2024 12:47 AM, Miaohe Lin wrote:
On 2024/5/2 7:24, Jane Chu wrote:
For years when it comes down to kill a process due to hwpoison,
a SIGBUS is delivered only if unmap has been successful.
Otherwise, a SIGKILL is delivered. And the reason for that is
to prevent the involved process from accessing the hwpoisoned
page again.
Since then a lot has changed, a hwpoisoned page is marked and
upon being re-accessed, the process will be killed immediately.
So let's take out the '!unmap_success' factor and try to deliver
SIGBUS if possible.
Signed-off-by: Jane Chu <jane.chu@xxxxxxxxxx>
---
mm/memory-failure.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9e62a00b46dd..7fcf182abb96 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -519,19 +519,14 @@ void add_to_kill_ksm(struct task_struct *tsk, struct page *p,
* Also when FAIL is set do a force kill because something went
* wrong earlier.
Since @fail is removed, above comment should be removed too.
Thanks.
.
Good catch, will do.
Thanks!
-jane
