Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-05 Thread Zhai, Edwin



Khem Raj wrote:


On Wed, May 4, 2011 at 5:40 PM, Zhai, Edwin edwin.z...@intel.com wrote:
 Raj,
 We have a bug for Nvidia driver @
 http://bugzilla.pokylinux.org/show_bug.cgi?id=649
 and a fix @
 
http://git.pokylinux.org/cgit.cgi/poky-contrib/commit/?h=gzhai/fix2id=f596757000465a4b8350e16f21553a23b8bbedfa 
http://git.pokylinux.org/cgit.cgi/poky-contrib/commit/?h=gzhai/fix2id=f596757000465a4b8350e16f21553a23b8bbedfa 



 I think it deserves a try.

 BTW, where is your gl library, including original one and Nvidia's? 
I doubt
 the layout may changes in ubuntu 11.04, so that our code failed to 
detect

 it.

yes this helps indeed. Please propose this patch for oe-core's
scripts/runqemu-internal



After discussion, we found this patch only works for Ubuntu(Fedora 
installed Nvidia driver in different way), and there is no elegant fix 
for all distribution. So we decided that just give out useful info and 
let end user to do the right thing for their own distribution.



Thanks
-Khem

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-04 Thread Zhai, Edwin

Raj,
We have a bug for Nvidia driver @ 
http://bugzilla.pokylinux.org/show_bug.cgi?id=649

and a fix @
http://git.pokylinux.org/cgit.cgi/poky-contrib/commit/?h=gzhai/fix2id=f596757000465a4b8350e16f21553a23b8bbedfa

I think it deserves a try.

BTW, where is your gl library, including original one and Nvidia's? I 
doubt the layout may changes in ubuntu 11.04, so that our code failed to 
detect it.


Thanks,
edwin


Khem Raj wrote:


On Tue, May 3, 2011 at 11:43 AM, Scott Garman 
scott.a.gar...@intel.com wrote:

 On 05/03/2011 10:32 AM, Mark Hatle wrote:

 On 5/3/11 12:27 PM, Khem Raj wrote:

 On Mon, May 2, 2011 at 5:41 PM, Zhai, Edwinedwin.z...@intel.com 
 wrote:


 Did you installed Nvidia proprietary driver? Any error mesg from the
 runqemu
 script?

 yes I did and I think that could be a culprit but then why would it
 work with nfs boot.
 there is no useful message from script it just collapses

 The script tries to detect the nvidia drivers.  If it finds them is
 supposed to
 issue a warning.  Sounds like your system might not have a version 
that it

 knows
 how to detect.

 The Nvidia libGL bug caused a segfault in qemu when booting images, 
so it

 should be pretty obvious if that's what's causing it.

 Given that Khem is booting the nfs version successfully, and not 
seeing any

 error message, I think this might be a new error.


the host system is 64-bit kubuntu 11.04 with nvidia proprietary
drivers. IIRC it worked fine without them but that was a month back.


 Scott

 --
 Scott Garman
 Embedded Linux Engineer - Yocto Project
 Intel Open Source Technology Center

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-04 Thread Khem Raj
On Wed, May 4, 2011 at 5:40 PM, Zhai, Edwin edwin.z...@intel.com wrote:
 Raj,
 We have a bug for Nvidia driver @
 http://bugzilla.pokylinux.org/show_bug.cgi?id=649
 and a fix @
 http://git.pokylinux.org/cgit.cgi/poky-contrib/commit/?h=gzhai/fix2id=f596757000465a4b8350e16f21553a23b8bbedfa

 I think it deserves a try.

 BTW, where is your gl library, including original one and Nvidia's? I doubt
 the layout may changes in ubuntu 11.04, so that our code failed to detect
 it.

yes this helps indeed. Please propose this patch for oe-core's
scripts/runqemu-internal

Thanks
-Khem

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-03 Thread Mark Hatle
On 5/3/11 12:27 PM, Khem Raj wrote:
 On Mon, May 2, 2011 at 5:41 PM, Zhai, Edwin edwin.z...@intel.com wrote:
 Did you installed Nvidia proprietary driver? Any error mesg from the runqemu
 script?
 
 yes I did and I think that could be a culprit but then why would it
 work with nfs boot.
 there is no useful message from script it just collapses

The script tries to detect the nvidia drivers.  If it finds them is supposed to
issue a warning.  Sounds like your system might not have a version that it knows
how to detect.

 I can't figure out one case that nfs root works and ext3 image doesn't...

Good question, I don't know.  In my experience both NFS and ext3 root crashes
with the nvidia drivers.  I have a patch to the version of QEMU I use that
disables all of GL to work around the problem.

I believe it's mhatle/qemu on poky-contrib... but it hasn't been updated for a
while now.

--Mark



 Khem Raj wrote:

 Hi

 I am seeing qemu segfaulting when booting ext3 image. The same rootfs
 boots fine over nfs. It does not give any useful message
 as to what happened. I am using the runqemu script. Same used to work
 fine 3 weeks back. I tried to blame compilers but the behavior
 is same irrespective of gcc version I use or even eglibc/uclibc

 Its on x86_64/ubuntu 11.04 host.

 Anyone experiencing it ? bisecting can be a long excercise for this.

 Thanks
 -Khem

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-03 Thread Khem Raj
On Tue, May 3, 2011 at 11:43 AM, Scott Garman scott.a.gar...@intel.com wrote:
 On 05/03/2011 10:32 AM, Mark Hatle wrote:

 On 5/3/11 12:27 PM, Khem Raj wrote:

 On Mon, May 2, 2011 at 5:41 PM, Zhai, Edwinedwin.z...@intel.com  wrote:

 Did you installed Nvidia proprietary driver? Any error mesg from the
 runqemu
 script?

 yes I did and I think that could be a culprit but then why would it
 work with nfs boot.
 there is no useful message from script it just collapses

 The script tries to detect the nvidia drivers.  If it finds them is
 supposed to
 issue a warning.  Sounds like your system might not have a version that it
 knows
 how to detect.

 The Nvidia libGL bug caused a segfault in qemu when booting images, so it
 should be pretty obvious if that's what's causing it.

 Given that Khem is booting the nfs version successfully, and not seeing any
 error message, I think this might be a new error.


the host system is 64-bit kubuntu 11.04 with nvidia proprietary
drivers. IIRC it worked fine without them but that was a month back.


 Scott

 --
 Scott Garman
 Embedded Linux Engineer - Yocto Project
 Intel Open Source Technology Center

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-03 Thread Scott Garman

On 05/03/2011 11:43 AM, Scott Garman wrote:

On 05/03/2011 10:32 AM, Mark Hatle wrote:

On 5/3/11 12:27 PM, Khem Raj wrote:

On Mon, May 2, 2011 at 5:41 PM, Zhai, Edwinedwin.z...@intel.com wrote:

Did you installed Nvidia proprietary driver? Any error mesg from the
runqemu
script?


yes I did and I think that could be a culprit but then why would it
work with nfs boot.
there is no useful message from script it just collapses


The script tries to detect the nvidia drivers. If it finds them is
supposed to
issue a warning. Sounds like your system might not have a version that
it knows
how to detect.


The Nvidia libGL bug caused a segfault in qemu when booting images, so
it should be pretty obvious if that's what's causing it.

Given that Khem is booting the nfs version successfully, and not seeing
any error message, I think this might be a new error.


Of course, after replying to this message, I read the subject line when 
it reappeared on the list. My apologizes for not understanding that qemu 
is indeed segfaulting.


So it's quite possible Khem is running into the same bug.

Scott

--
Scott Garman
Embedded Linux Engineer - Yocto Project
Intel Open Source Technology Center

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Re: [OE-core] qemu segfaulting when booting ext3 image

2011-05-02 Thread Zhai, Edwin
Did you installed Nvidia proprietary driver? Any error mesg from the 
runqemu script?

I can't figure out one case that nfs root works and ext3 image doesn't...


Khem Raj wrote:


Hi

I am seeing qemu segfaulting when booting ext3 image. The same rootfs
boots fine over nfs. It does not give any useful message
as to what happened. I am using the runqemu script. Same used to work
fine 3 weeks back. I tried to blame compilers but the behavior
is same irrespective of gcc version I use or even eglibc/uclibc

Its on x86_64/ubuntu 11.04 host.

Anyone experiencing it ? bisecting can be a long excercise for this.

Thanks
-Khem

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[OE-core] qemu segfaulting when booting ext3 image

2011-04-30 Thread Khem Raj
Hi

I am seeing qemu segfaulting when booting ext3 image. The same rootfs
boots fine over nfs. It does not give any useful message
as to what happened. I am using the runqemu script. Same used to work
fine 3 weeks back. I tried to blame compilers but the behavior
is same irrespective of gcc version I use or even eglibc/uclibc

Its on x86_64/ubuntu 11.04 host.

Anyone experiencing it ? bisecting can be a long excercise for this.

Thanks
-Khem

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