All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniel Vetter <daniel@ffwll.ch>
To: George Spelvin <linux@horizon.com>
Cc: ben@bwidawsk.net, intel-gfx@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: v3.5  Oops in i2c_algo_bit.c:bit_xfer+0x23/0x870: i915 or i2c?
Date: Mon, 13 Aug 2012 16:15:13 +0200	[thread overview]
Message-ID: <20120813141513.GC5248@phenom.ffwll.local> (raw)
In-Reply-To: <20120813034922.24517.qmail@science.horizon.com>

On Sun, Aug 12, 2012 at 11:49:22PM -0400, George Spelvin wrote:
> (Bringing this back to the mailing lists after a bit of uninteresting private
> conversation.)
> 
> > Honestly, I think we need a way to force disable gmbus with a module 
> > parameter or something anyway. It's not the first time gmbus has been 
> > implicated with an issue. Maybe it even exists already, but I couldn't 
> > find this. So if you confirm that fixes the problem for you on the ml, 
> > at least maybe such a patch will be the result.
> >
> > If you feel it's a software bug (which I agree it seems likely), a
> > bisect is always much appreciated. Personally, I'll usually step back
> > major releases until something works, or I hit 3.2ish. Even knowing it
> > never worked through 3.2 is helpful.
> 
> It's a friend's machine, which I normally only have remote access to,
> so it's a bit pf a pain, but I can manage.  I just thought a basic
> i3 motherboard was so common I couldn't possibly be the only one with
> this problem.
> 
> Here's the 3.2 dmesg showing the fallback working, but this is an
> Ubuntu-patched kernel (linux-image-3.2.0-29-generic) that may be a fair
> distance from stock:

One thing of interest would be the exact .config you use to build the
kernel and the output of lsmod (after the kernel crashed). I guess the
issue is with the combination of drivers you have (i2c_detect in the
calltrace calls back into other registered i2c drivers ...).

Yours, Daniel

> 
> [   44.401124] [drm] Initialized drm 1.1.0 20060810
> [   44.471549] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [   44.471553] i915 0000:00:02.0: setting latency timer to 64
> [   44.555865] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.611882] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.667876] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.723831] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.779841] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.835854] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.895843] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   44.951836] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus disabled]
> [   45.007798] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.063716] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.119776] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.175716] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.231689] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.287696] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.343704] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.399667] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus ssc]
> [   45.455651] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.511629] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.567581] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.623645] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.679546] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.735614] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.791596] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.847533] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus vga]
> [   45.903517] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   45.959547] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.015492] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.071473] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.127430] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.183447] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.239425] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.295407] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus panel]
> [   46.351401] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.407382] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.463363] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.519347] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.575302] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.631320] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.687360] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.743300] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpc]
> [   46.799250] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   46.855292] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   46.911250] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   46.967250] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   47.023258] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   47.079206] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   47.135232] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   47.191163] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpb]
> [   47.247148] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.303186] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.359091] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.415157] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.471062] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.527121] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.583087] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.639092] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus reserved]
> [   47.695081] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   47.751011] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   47.810995] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   47.867014] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   47.923009] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   47.978921] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   48.034954] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   48.090936] [drm] GMBUS timed out, falling back to bit banging on pin 0 [i915 gmbus dpd]
> [   48.091142] i915 0000:00:02.0: irq 49 for MSI/MSI-X
> [   48.091147] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
> [   48.091148] [drm] Driver supports precise vblank timestamp query.
> [   48.091182] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> [   48.511902] fbcon: inteldrmfb (fb0) is primary device
> [   48.852752] Console: switching to colour frame buffer device 240x67
> [   48.857087] fb0: inteldrmfb frame buffer device
> [   48.857088] drm: registered panic notifier
> [   48.857205] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

  reply	other threads:[~2012-08-13 14:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-09  4:50 v3.5 Oops in i2c_algo_bit.c:bit_xfer+0x23/0x870: i915 or i2c? George Spelvin
2012-08-12 23:47 ` Ben Widawsky
2012-08-12 23:47   ` Ben Widawsky
2012-08-13  3:49   ` George Spelvin
2012-08-13 14:15     ` Daniel Vetter [this message]
2012-08-13 14:24       ` George Spelvin
2012-08-13 14:40       ` [Intel-gfx] " Jani Nikula

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=20120813141513.GC5248@phenom.ffwll.local \
    --to=daniel@ffwll.ch \
    --cc=ben@bwidawsk.net \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@horizon.com \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.