On Sat, May 03, 2025 at 10:05:29AM +0800, Wang Yugui wrote:
Hi, Cc: Greg Kroah-Hartman
Hi,
I noticed a WARNING in recent 6.12.y kernel.
This WARNING happen on 6.12.26/6.12.25, but not happen on 6.12.20.
More bisect job need to be done, but reporti it firstly.
[ 13.288365] ------------[ cut here ]------------ [ 13.288366] WARNING: CPU: 0 PID: 681 at block/blk-mq-cpumap.c:90 blk_mq_map_hw_queues+0xcf/0xe0 void blk_mq_map_hw_queues(struct blk_mq_queue_map *qmap, struct device *dev, unsigned int offset) { ... ... fallback: L90： WARN_ON_ONCE(qmap->nr_queues > 1); blk_mq_clear_mq_map(qmap); }
The following patch fixed this WARNING.
From a9ae6fe1c319c4776c2b11e85e15109cd3f04076 Mon Sep 17 00:00:00 2001 From: Daniel Wagner wagi@kernel.org Date: Thu, 23 Jan 2025 14:08:29 +0100 Subject: [PATCH] blk-mq: create correct map for fallback case
please pull it to 6.12.y.
But the commit that this one says it fixes is NOT in the 6.12.y tree. So why would this commit fix the issue?
And why haven't you cc:ed the authors involved in these changes?
confused,
greg k-h