Re: [PATCH] dm-crypt: fix softlockup in dmcrypt_write

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在 2023/2/26 10:01, Bart Van Assche 写道:
On 2/22/23 19:19, yangerkun wrote:
@@ -1924,6 +1926,10 @@ static int dmcrypt_write(void *data)
          BUG_ON(rb_parent(write_tree.rb_node));
+        if (time_is_before_jiffies(start_time + HZ)) {
+            schedule();
+            start_time = jiffies;
+        }

Why schedule() instead of cond_resched()?

cond_resched may not really schedule, which may trigger the problem too, but it seems after 1 second, it may never happend?

Thanks,
Kun.


Thanks,

Bart.


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