linux-kernel - Re: Regression in v5.0-rc1: Panic at boot

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Message-ID: <40eaef42-6aaf-cfcd-871b-be0aac9720e4@deltatee.com>
Date:   Tue, 8 Jan 2019 10:31:48 -0700
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Jeff Moyer <jmoyer@...hat.com>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Regression in v5.0-rc1: Panic at boot



On 2019-01-08 6:49 a.m., Jeff Moyer wrote:
>> The traceback seems to indicate the problem is on the bip_get_seed()
>> line in t10_pi_complete(). Which suggests that bio_integrity() is
>> returning NULL.
> 
> Does your hardware actually support protection information?

As far as I know, I do not. If I add a printk to t10_pi_complete(), it
doesn't print on a successful boot and does print on a broken boot. So
something is causing it to be called erroneously.

Logan