From: Ben Hutchings <ben@decadent.org.uk>
To: Paul Menzel <paul.menzel@giantmonkey.de>,
"James E. J. Bottomley" <JBottomley@odin.com>,
linux-scsi@vger.kernel.org
Cc: submit@bugs.debian.org
Subject: Re: NULL pointer dereference: IP: [<f828a00c>] sr_runtime_suspend+0xc/0x20 [sr_mod]
Date: Tue, 20 Oct 2015 02:39:19 +0100 [thread overview]
Message-ID: <1445305159.2561.16.camel@decadent.org.uk> (raw)
In-Reply-To: <1444982077.2350.0.camel@giantmonkey.de>
[-- Attachment #1: Type: text/plain, Size: 2027 bytes --]
On Fri, 2015-10-16 at 09:54 +0200, Paul Menzel wrote:
[...]
> > BUG: unable to handle kernel NULL pointer dereference at 00000014
> > IP: [] sr_runtime_suspend+0xc/0x20 [sr_mod]
> > *pdpt = 000000003696e001 *pde = 000000000000000000
> > Oops: 0000 [#1] SMB
> > Modules linked in: sd_mod(+) sr_mod(+) cdrom ata_generic ohci_pci ahci libahci pata_amd firwire_ohci firewire_core crc_iti_t forcedeth libata scsi_mod ohci_hcd ehci_pci ehci_hcd usbcore usb_common fan thermal thermal_sys floppy(+)
> > CPU: 1 PID: 73 Comm: systemd-udevd Not tainted 4.2.0-1-686-pae #1 Debian 4.2.3-1
> > Hardware name: Packard Bell imedia S3210/WMCP78M, BIOs P01-B2 11/06/2009
> > task: f68dd040 ti: f6988000 task.ti: f6988000
> > EIP: 0060:[] EFLAGS: 00010246 CPU: 1
> > EIP is at sr_runtime_suspend+0xc/0x20 [sr_mod]
> > EAX: 00000000 EBX: f6a30cd8 ECX: f6c03d2c EDX: 00000000
> > ESI: 00000000 EDI: f828e100 EBP: f6989ba8 ESP: f6989b88
> > DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> > CR0: 8005003b CR2: 00000014 CR3: 3696d780 CR4: 000006f0
> > Stack:
> > af83346c3 00000000 00000001 fffffff5 f6a7d150 f6a30cd8 f6a30d3c 00000000
> > f6989bbc c1390cb7 f6a30cd8 f8334660 00000000 f6989bd0 c1390d0f f6a30cd8
> > f8334660 00000000 f6989c0c c13916cb f694a614 f68dd040 00000000 00000008
> > Call Trace:
> > […] ? scsi_runtime_suspend+0x63/0xa0 [scsi_mod]
> > […] ? __rpm_callback+0x27/0x60
> > […]
[...]
> Ben Hutchings asked me to test the patch below to get more debug
> information.
[...]
Well, that didn't help much. Paul hit another oops, this time in
sd_mod but again apparently related to runtime PM. My patch only
touched sr_mod.
This time he sent photos of the complete oops; see
<https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801925;filename=20151020_005.jpg;att=4;msg=15>
and
<https://bugs.debian.org/cgi-bin/bugreport.cgi?filename=20151020_006.jpg;bug=801925;att=3;msg=15>
Ben.
--
Ben Hutchings
The first rule of tautology club is the first rule of tautology club.
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 811 bytes --]
next prev parent reply other threads:[~2015-10-20 1:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-16 1:05 NULL pointer dereference: IP: [<f828a00c>] sr_runtime_suspend+0xc/0x20 [sr_mod] Paul Menzel
2015-10-16 7:54 ` Paul Menzel
2015-10-16 8:52 ` Paul Menzel
2015-10-20 1:39 ` Ben Hutchings [this message]
2015-10-31 9:39 ` Paul Menzel
2015-11-01 1:56 ` Alan Stern
2015-11-01 2:05 ` Alan Stern
2016-01-09 15:23 ` Paul Menzel
2016-01-09 16:36 ` Alan Stern
2016-01-10 11:44 ` Erich Schubert
2016-01-10 15:32 ` Alan Stern
[not found] <CAGKbab941Nh7Sy1NTZC6ySxG_P5g7HpjATQ_GSCvDY8y=qgmHA@mail.gmail.com>
2016-01-19 16:38 ` Alan Stern
2016-01-19 16:52 ` Paul Menzel
2016-01-19 21:08 ` Alan Stern
2016-01-19 23:20 ` Paul Menzel
2016-01-20 22:07 ` Alexandre Rossi
2016-02-09 16:47 ` Paul Menzel
2016-02-09 19:56 ` Alexandre Rossi
2016-02-09 20:51 ` Ben Hutchings
2016-02-18 16:27 ` Alan Stern
2016-02-22 23:15 ` Alexandre Rossi
2016-02-23 15:14 ` Alan Stern
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=1445305159.2561.16.camel@decadent.org.uk \
--to=ben@decadent.org.uk \
--cc=JBottomley@odin.com \
--cc=linux-scsi@vger.kernel.org \
--cc=paul.menzel@giantmonkey.de \
--cc=submit@bugs.debian.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