* Regression: commit e696c68363740d3a8fe495e353de3ff26b86257a prevents Linux 3.13 from booting on Lenovo X1 Carbon.
@ 2014-01-20 23:26 Jens Taprogge
2014-01-20 23:53 ` Greg Kroah-Hartman
0 siblings, 1 reply; 3+ messages in thread
From: Jens Taprogge @ 2014-01-20 23:26 UTC (permalink / raw)
To: Dmitry Torokhov, Greg Kroah-Hartman, Thomas Hellstrom; +Cc: linux-input
[-- Attachment #1: Type: text/plain, Size: 644 bytes --]
Hello,
I have bisected the boot failure of a Lenovo Thinkpad X1 Carbon to the
merge ea4ebd1cb093c8ec5d7f4bf9070dc444184c3971. What I call "boot
failure" refers to the fact that no console is shown, the machine only
reads from the disc for a very short time, and the machine does not
respond to Ctrl-Alt-Del, etc.
As it turns out reverting e696c68363740d3a8fe495e353de3ff26b86257a
(Input: serio - fix sysfs layout) on top of v3.13 makes the machine boot
again. So far I have now clue how this commit can affect early boot
/ showing of the console.
Does it ring any bells for you?
Please find the .config used attached.
Best Regards,
Jens
[-- Attachment #2: config3.13.gz --]
[-- Type: application/octet-stream, Size: 22997 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Regression: commit e696c68363740d3a8fe495e353de3ff26b86257a prevents Linux 3.13 from booting on Lenovo X1 Carbon.
2014-01-20 23:26 Regression: commit e696c68363740d3a8fe495e353de3ff26b86257a prevents Linux 3.13 from booting on Lenovo X1 Carbon Jens Taprogge
@ 2014-01-20 23:53 ` Greg Kroah-Hartman
2014-01-21 0:20 ` Jens Taprogge
0 siblings, 1 reply; 3+ messages in thread
From: Greg Kroah-Hartman @ 2014-01-20 23:53 UTC (permalink / raw)
To: Jens Taprogge; +Cc: Dmitry Torokhov, Thomas Hellstrom, linux-input
On Tue, Jan 21, 2014 at 12:26:52AM +0100, Jens Taprogge wrote:
> Hello,
>
> I have bisected the boot failure of a Lenovo Thinkpad X1 Carbon to the
> merge ea4ebd1cb093c8ec5d7f4bf9070dc444184c3971. What I call "boot
> failure" refers to the fact that no console is shown, the machine only
> reads from the disc for a very short time, and the machine does not
> respond to Ctrl-Alt-Del, etc.
>
> As it turns out reverting e696c68363740d3a8fe495e353de3ff26b86257a
> (Input: serio - fix sysfs layout) on top of v3.13 makes the machine boot
> again. So far I have now clue how this commit can affect early boot
> / showing of the console.
>
> Does it ring any bells for you?
No, not at all, I don't see how that patch could prevent booting,
especially as it is fixing a regression (i.e. putting things back the
way they originally were.)
very odd.
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Regression: commit e696c68363740d3a8fe495e353de3ff26b86257a prevents Linux 3.13 from booting on Lenovo X1 Carbon.
2014-01-20 23:53 ` Greg Kroah-Hartman
@ 2014-01-21 0:20 ` Jens Taprogge
0 siblings, 0 replies; 3+ messages in thread
From: Jens Taprogge @ 2014-01-21 0:20 UTC (permalink / raw)
To: Greg Kroah-Hartman; +Cc: Dmitry Torokhov, Thomas Hellstrom, linux-input
On Mon, Jan 20, 2014 at 03:53:58PM -0800, Greg Kroah-Hartman wrote:
> On Tue, Jan 21, 2014 at 12:26:52AM +0100, Jens Taprogge wrote:
> > Hello,
> >
> > I have bisected the boot failure of a Lenovo Thinkpad X1 Carbon to the
> > merge ea4ebd1cb093c8ec5d7f4bf9070dc444184c3971. What I call "boot
> > failure" refers to the fact that no console is shown, the machine only
> > reads from the disc for a very short time, and the machine does not
> > respond to Ctrl-Alt-Del, etc.
> >
> > As it turns out reverting e696c68363740d3a8fe495e353de3ff26b86257a
> > (Input: serio - fix sysfs layout) on top of v3.13 makes the machine boot
> > again. So far I have now clue how this commit can affect early boot
> > / showing of the console.
> >
> > Does it ring any bells for you?
>
> No, not at all, I don't see how that patch could prevent booting,
> especially as it is fixing a regression (i.e. putting things back the
> way they originally were.)
>
> very odd.
>
> greg k-h
I agree. This machine had some very weird boot issues a while ago.
I was starting to suspect it had some alignment issue of some vector
that the EFI firmware uses when handing over control to the kernel.
(Note that I know very little about EFI.) Does that make any sense?
See this thread http://www.spinics.net/lists/stable/msg09886.html for
the old discussion. Back then, the problem disappeared with later
version of the kernel / compiler.
Best Regards,
Jens
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-01-20 23:26 Regression: commit e696c68363740d3a8fe495e353de3ff26b86257a prevents Linux 3.13 from booting on Lenovo X1 Carbon Jens Taprogge
2014-01-20 23:53 ` Greg Kroah-Hartman
2014-01-21 0:20 ` Jens Taprogge
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