From: Torsten Luettgert <ml-lkml@enda.eu>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160
Date: Mon, 13 Apr 2015 20:28:29 +0200 [thread overview]
Message-ID: <20150413202829.580e3801@goldlack.schiller106> (raw)
In-Reply-To: <20150413174105.GA14988@lst.de>
On Mon, 13 Apr 2015 19:41:05 +0200
Christoph Hellwig <hch@lst.de> wrote:
> Can you run gdb on your vmlinux file and send the output of the
> following command in gdb
>
> l *(scsi_dma_unmap+0x54)
Thanks for looking into it! Here is what gdb says:
Reading symbols
from /opt/kvm/bisect/vmlinux-3.16.0-74665016086615bb+...done.
(gdb) l *(scsi_dma_unmap+0x54)
0xffffffff8146a0b4 is in scsi_dma_unmap
(drivers/scsi/scsi_lib_dma.c:50).
45 struct device *dev = cmd->device->host->dma_dev;
46
47 dma_unmap_sg(dev, scsi_sglist(cmd), scsi_sg_count(cmd),
48 cmd->sc_data_direction);
49 }
50 }
51 EXPORT_SYMBOL(scsi_dma_unmap);
Regards,
Torsten
next prev parent reply other threads:[~2015-04-13 18:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150408183333.493607a3@goldlack.schiller106>
2015-04-13 17:41 ` BUG: unable to handle kernel NULL pointer deref, bisected to 746650160 Christoph Hellwig
2015-04-13 18:28 ` Torsten Luettgert [this message]
2015-04-17 13:31 ` Torsten Luettgert
2015-04-17 13:55 ` Torsten Luettgert
2015-04-19 16:58 ` Christoph Hellwig
2015-04-20 11:24 ` Torsten Luettgert
2015-04-22 8:45 ` Torsten Luettgert
2015-04-27 15:17 ` Torsten Luettgert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150413202829.580e3801@goldlack.schiller106 \
--to=ml-lkml@enda.eu \
--cc=hch@lst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox