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

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Message-ID: <14ff1ed06e36a372680872c227b5abe389c753da.camel@wdc.com>
Date:   Tue, 24 Apr 2018 17:31:40 +0000
From:   Bart Van Assche <Bart.VanAssche@....com>
To:     "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:     "jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>,
        "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 doesn properly resume causing system
 hang (NULL pointer dereference)

On Tue, 2018-04-24 at 19:10 +0200, Paul Menzel wrote:
> Please find the configuration file attached. The log only has 
> `initcall_debug no_console_suspend` added.

What I was looking for in the .config is the following:
CONFIG_SCSI_MQ_DEFAULT=y

Can you also provide the disassembly output for blk_set_runtime_active,
e.g. by loading vmlinux into gdb and by running the command "disas
blk_set_runtime_active"?

Thanks,

Bart.