linux-kernel - Re: Regression 4.17-rc1: SSD doesnʼt properly resume causing system hang (NULL pointer dereference)

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Message-ID: <67ffdf0050a04bf3615c3d8a3a90b0c9c2aeb1ad.camel@wdc.com>
Date:   Tue, 24 Apr 2018 16:26:27 +0000
From:   Bart Van Assche <Bart.VanAssche@....com>
To:     "jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>,
        "pmenzel+linux-block@...gen.mpg.de" 
        <pmenzel+linux-block@...gen.mpg.de>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>
CC:     "regressions@...mhuis.info" <regressions@...mhuis.info>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
Subject: Re: Regression 4.17-rc1: SSD doesnʼt properly resume causing system hang (NULL pointer dereference)

On Tue, 2018-04-24 at 18:14 +0200, Paul Menzel wrote:
> Since Linux 4.17-rc1, resume from ACPI on the Lenovo X60 fails because 
> of a NULL pointer dereference. As the drive doesn’t come back, messages 
> can be seen on the display, but the system cannot be controlled anymore, 
> and has to be forcefully shut down.

Are you using scsi-mq or the legacy SCSI core? If you are not sure how to
answer this question, please share the kernel config and kernel command
line parameters.

Thanks,

Bart.