linux-kernel - Re: [PATCH v11] NVMe: Convert to blk-mq

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Message-ID: <53ECD842.40302@bjorling.me>
Date:	Thu, 14 Aug 2014 17:39:46 +0200
From:	Matias Bjorling <m@...rling.me>
To:	Jens Axboe <axboe@...com>, Keith Busch <keith.busch@...el.com>
CC:	Matthew Wilcox <willy@...ux.intel.com>,
	"Sam Bradshaw (sbradshaw)" <sbradshaw@...ron.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-nvme <linux-nvme@...ts.infradead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Rob Nelson <rlnelson@...gle.com>,
	Ming Lei <tom.leiming@...il.com>
Subject: Re: [PATCH v11] NVMe: Convert to blk-mq

>
>>> I haven't event tried debugging this next one: doing an insmod+rmmod
>>> caused this warning followed by a panic:
>>>
>>
>> I'll look into it. Thanks
>
> nr_tags must be uninitialized or screwed up somehow, otherwise I don't
> see how that kmalloc() could warn on being too large. Keith, are you
> running with slab debugging? Matias, might be worth trying.

Thanks for the hint.

Keith, I'll first have a chance to fix it tomorrow. Let me know if you 
find it in the mean time.

I've put up a nvmemq_v12 on the github repository with the q_suspended 
removed.
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