Re: [4.18.0-rc4][bisected a063057d][mpt3sas] WARNING: CPU: 87 PID: 18868 at block/blk-core.c:781 blk_cleanup_queue+0x20c/0x220

From: Bart Van Assche
Date: Mon Jul 16 2018 - 10:00:39 EST


On Mon, 2018-07-16 at 14:23 +-0530, Abdul Haleem wrote:
+AD4- mpt3sas module unload triggered a warning at block/blk-core.c:781 on a
+AD4- powerpc bare-metal running mainline kernel
+AD4-
+AD4- WARN+AF8-ON+AF8-ONCE() was introduced with commit a063057 : block: Fix a race
+AD4- between request queue removal and the block cgroup controller

Please check whether the following patch series fixes this regression: +AFs-PATCH
v3 0/2+AF0- Ensure that a request queue is dissociated from the cgroup controller
(https://www.mail-archive.com/linux-block+AEA-vger.kernel.org/msg21897.html).

Thanks,

Bart.