linux-kernel - Re: 4.16-rc2+git: pata_serverworks: hanging ata detection thread on HP DL380G3

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Message-ID: <20180402162425.GB388343@devbig577.frc2.facebook.com>
Date:   Mon, 2 Apr 2018 09:24:25 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Meelis Roos <mroos@...ux.ee>
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Linux Kernel list <linux-kernel@...r.kernel.org>,
        linux-ide@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: 4.16-rc2+git: pata_serverworks: hanging ata detection thread on
 HP DL380G3

Hello,

On Fri, Mar 30, 2018 at 11:47:24AM +0300, Meelis Roos wrote:
> Added CC-s, start of the thread is at 
> https://lkml.org/lkml/2018/2/26/165
> 
> > > > 4.16 git bootup on HP Proliant DL380 G3 pauses for a a minute or two and 
> > > > then continues with "blocked for more than 120 seconds" message with 
> > > > libata detection functions in ther stack - 
> > > > async_synchronize_cookie_domain() as the last. It seems to happen during 
> > > > IDE CD-ROM detection (detected before but registered as sr0 after the 
> > > > warning). After detection, the eject button on the drive did not work.
> > > > 
> > > > 
> > > > pata_serverworks is the libata driver in use.
> > 
> > There were no changes to pata_serverworks since 2014 and libata changes
> > in v4.16 look obviously correct..
> > 
> > > This is still the same in 4.16.0-rc7-00062-g0b412605ef5f.
> > 
> > Any chance that you could bisect this issue?
> 
> Bisected to the following commit:
> 
> 358f70da49d77c43f2ca11b5da584213b2add29c is the first bad commit
> commit 358f70da49d77c43f2ca11b5da584213b2add29c
> Author: Tejun Heo <tj@...nel.org>
> Date:   Tue Jan 9 08:29:50 2018 -0800
> 
>     blk-mq: make blk_abort_request() trigger timeout path

Can you share the .config file?

Thanks.

-- 
tejun