kernel/device_manager: Always use the marker in the IOScheduler.

When dropping the lock (or calling _Finisher) the owner could go away. So we have to keep track of our position in the list a different way. Fixes #20213. Change-Id: I1f0857c05ec985c7fe2f913a75be20ea91e6994c Reviewed-on: https://review.haiku-os.org/c/haiku/+/11405 Reviewed-by: waddlesplash <[email protected]> (cherry picked from commit e6155d041190f459d601022bd63840819d2beecc) Reviewed-on: https://review.haiku-os.org/c/haiku/+/11407
2026-08-04 02:49:05 +00:00
parent 52d627b267
commit be1b4b813d
1 changed files with 3 additions and 4 deletions
@@ -801,10 +801,9 @@ panic("no more requests for owner %p (thread %" B_PRId32 ")", owner, owner->thre
 				_NextActiveRequestOwner(owner, quantum);
 		}

-		// If the current owner doesn't have anymore requests, we have to
-		// insert our marker, since the owner will be gone in the next
-		// iteration.
-		if (owner->requests.IsEmpty()) {
+		// Since we're going to drop the lock, we have to use the marker to
+		// keep track of where we are in the ActiveRequestOwners list.
+		if (owner != NULL) {
 			fActiveRequestOwners.InsertBefore(owner, &marker);
 			owner = NULL;
 		}