From: Jens Axboe <axboe@kernel.dk>
To: Dexuan Cui <decui@microsoft.com>,
Bart Van Assche <Bart.VanAssche@sandisk.com>,
"hare@suse.com" <hare@suse.com>, "hare@suse.de" <hare@suse.de>
Cc: "hch@lst.de" <hch@lst.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"jth@kernel.org" <jth@kernel.org>
Subject: Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements
Date: Tue, 7 Feb 2017 09:09:16 -0700 [thread overview]
Message-ID: <9199d528-f220-5b77-d657-c510ca210067@kernel.dk> (raw)
In-Reply-To: <MWHPR03MB2669125A47D3CB7EB530D084BF430@MWHPR03MB2669.namprd03.prod.outlook.com>
On 02/06/2017 11:29 PM, Dexuan Cui wrote:
>> From: linux-block-owner@vger.kernel.org [mailto:linux-block-
>> owner@vger.kernel.org] On Behalf Of Dexuan Cui
>> with the linux-next kernel.
>>
>> I can boot the guest with linux-next's next-20170130 without any issue,
>> but since next-20170131 I haven't succeeded in booting the guest.
>>
>> With next-20170203 (mentioned in my mail last Friday), I got the same
>> calltrace as Hannes.
>>
>> With today's linux-next (next-20170206), actually the calltrace changed to
>> the below.
>> [ 122.023036] ? remove_wait_queue+0x70/0x70
>> [ 122.051383] async_synchronize_full+0x17/0x20
>> [ 122.076925] do_init_module+0xc1/0x1f9
>> [ 122.097530] load_module+0x24bc/0x2980
>
> I don't know why it hangs here, but this is the same calltrace in my
> last-Friday mail, which contains 2 calltraces. It looks the other calltrace has
> been resolved by some changes between next-20170203 and today.
>
> Here the kernel is trying to load the Hyper-V storage driver (hv_storvsc), and
> the driver's __init and .probe have finished successfully and then the kernel
> hangs here.
>
> I believe something is broken recently, because I don't have any issue before
> Jan 31.
Can you try and bisect it?
--
Jens Axboe
next prev parent reply other threads:[~2017-02-07 16:09 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 9:48 [PATCH] genhd: Do not hold event lock when scheduling workqueue elements Hannes Reinecke
2017-01-31 0:31 ` Bart Van Assche
2017-01-31 16:15 ` Hannes Reinecke
2017-02-03 12:22 ` Dexuan Cui
2017-02-07 2:23 ` Dexuan Cui
2017-02-07 2:56 ` Bart Van Assche
2017-02-07 3:48 ` Dexuan Cui
2017-02-07 6:29 ` Dexuan Cui
2017-02-07 16:09 ` Jens Axboe [this message]
2017-02-08 10:48 ` Dexuan Cui
2017-02-08 17:43 ` Boot regression (was "Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements") Jens Axboe
2017-02-08 18:03 ` hch
2017-02-09 7:35 ` Dexuan Cui
2017-02-09 13:08 ` hch
2017-02-10 14:49 ` Dexuan Cui
2017-02-14 13:47 ` hch
2017-02-14 14:17 ` Dexuan Cui
2017-02-14 14:28 ` hch
2017-02-14 14:46 ` Dexuan Cui
2017-02-14 14:51 ` hch
2017-02-14 15:54 ` Dexuan Cui
2017-02-14 16:34 ` hch
2017-02-15 13:51 ` Dexuan Cui
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