Re: [PATCH 3/3] blk-mq: Fix the queue freezing mechanism

From: Tejun Heo
Date: Thu Sep 24 2015 - 18:56:27 EST

Hello, Bart.

On Thu, Sep 24, 2015 at 03:54:18PM -0700, Bart Van Assche wrote:
> Sorry that I had not yet made this clear but I agreed with the analysis in
> your two most recent e-mails. I think I have found the cause of the loop:
> for one or another reason the scsi_dh_alua driver was not loaded
> automatically. I think that caused the SCSI core to return a retryable error
> code for reads and writes sent over paths in the SCSI ALUA state "standby"
> instead of a non-retryable error code and that that caused the dm-mpath
> driver to enter an infinite loop. Loading the scsi_dh_alua driver resolved
> the infinite loop. Anyway, thank you for the feedback.

Great! I think we still probably wanna fix the kill/reinit race tho.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at