Discussion:
[fedora-arm] Kraxel's Kernel and VC4
Aly Dharshi
2016-10-20 17:38:06 UTC
Permalink
Hello Everyone,


I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's kit. I also installed X and tried to set the default state of the machine to graphical.target using systemd. I also have xrdp installed. I can easily and successfully RDP across to the machine and use LXDE.


When I try to use it at the machine itself, there is not X environment firing up. I have the following errors in dmesg:


[ 24.367279] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 24.374196] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 24.384452] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 24.391416] [drm] num bos allocated: 4
[ 24.395243] [drm] size bos allocated: 18320kb
[ 24.399678] [drm] num bos used: 3
[ 24.403056] [drm] size bos used: 9320kb
[ 24.406966] [drm] num bos cached: 1
[ 24.410509] [drm] size bos cached: 9000kb
[ 29.921963] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 29.928816] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 29.943051] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 29.950043] [drm] num bos allocated: 4
[ 29.953873] [drm] size bos allocated: 18320kb
[ 29.964561] [drm] num bos used: 3
[ 29.967904] [drm] size bos used: 9320kb
[ 29.971816] [drm] num bos cached: 1
[ 29.975355] [drm] size bos cached: 9000kb
[ 35.616982] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 35.623766] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 35.630569] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 35.637485] [drm] num bos allocated: 4
[ 35.641260] [drm] size bos allocated: 18320kb
[ 35.645636] [drm] num bos used: 3
[ 35.648967] [drm] size bos used: 9320kb
[ 35.652810] [drm] num bos cached: 1
[ 35.656310] [drm] size bos cached: 9000kb
[ 41.741442] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 41.750538] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 41.764316] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 41.777405] [drm] num bos allocated: 4
[ 41.787267] [drm] size bos allocated: 18320kb
[ 41.796928] [drm] num bos used: 3
[ 41.806312] [drm] size bos used: 9320kb
[ 41.815661] [drm] num bos cached: 1
[ 41.822454] [drm] size bos cached: 9000kb
[ 47.842983] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 47.849963] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 47.856894] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 47.864245] [drm] num bos allocated: 4
[ 47.868063] [drm] size bos allocated: 18320kb
[ 47.872487] [drm] num bos used: 3
[ 47.875855] [drm] size bos used: 9320kb
[ 47.879709] [drm] num bos cached: 1
[ 47.883285] [drm] size bos cached: 9000kb
[ 53.606989] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 53.613819] vc4-drm soc:gpu: failed to allocate buffer with size 9216000
[ 53.620666] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[ 53.627631] [drm] num bos allocated: 4
[ 53.631427] [drm] size bos allocated: 18320kb
[ 53.635826] [drm] num bos used: 3
[ 53.639176] [drm] size bos used: 9320kb
[ 53.643048] [drm] num bos cached: 1
[ 53.646566] [drm] size bos cached: 9000kb

My config.txt looks as follows:


arm_freq=1200
core_freq=400
sdram_freq=500
over_voltage=6
gpu_mem=256
max_usb_current=1
arm_control=0x200

# NOOBS Auto-generated Settings
hdmi_force_hotplug=1
config_hdmi_boost=4
overscan_left=24
overscan_right=24
overscan_top=16
overscan_bottom=16
disable_overscan=0

# workaround firmware issue for rpi3
# u-boot doesn't work without this
enable_uart=1

Would anybody have any thoughts on solving this issue. I know it may not be completely a Fedora problem especially since its not a Fedora team built kernel. But would still appreciate the help. Thanks/


Cheers,


ASD.






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Aly S Dharshi B.Sc. Computer Science, RHCE


Technology Strategist


m. 780 722 3461 t. 780 428 5226


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Marcin Juszkiewicz
2016-10-20 19:46:55 UTC
Permalink
Post by Aly Dharshi
I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's
kit.
[..]
Post by Aly Dharshi
Would anybody have any thoughts on solving this issue. I know it may not
be completely a Fedora problem especially since its not a Fedora team
built kernel. But would still appreciate the help. Thanks/
Test Fedora 25 image. If it works, tell us. If it does not tell us too.
Post by Aly Dharshi
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Aly Dharshi
2016-10-21 12:14:31 UTC
Permalink
Hello Marcin,

I have tried the Fedora 25 build and X comes up on the PI3 fine. BUT I have found it to be rather heavy. This is my opinion but Midori works but isn't the greatest. Firefox installs but seg faults on start up.

Overall it seems that the F25 build needs a lot of tuning to run on the Pi smoothly. But this is to be expected. Performance is sluggish and not like on an X86.

Kraxel's kernel is 64 bit and seems to run smoother on the V8. Only thing lacking is to get X going on the actual console of the machine as opposed to going they XRDP. Also he is running a 4.7.x vintage of kernel. Again nothing wrong with that at all at the moment.

I am also interested in the Gigabyte server box with has Cavium chips. But that one has nothing to do with this thread and is targeted imho to RHEL7.3. Thanks.

Cheers,

ASD.



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Aly S Dharshi B.Sc. Computer Science, RHCE


Technology Strategist


m. 780 722 3461 t. 780 428 5226


e. ***@dharshi.ca<mailto:***@dharshi.ca> w. alydharshi.com<https://esig.ly/links/170277>



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On Oct 20, 2016, at 1:47 PM, Marcin Juszkiewicz <***@redhat.com<mailto:***@redhat.com>> wrote:

W dniu 20.10.2016 o 19:38, Aly Dharshi pisze:

I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's
kit.

[..]

Would anybody have any thoughts on solving this issue. I know it may not
be completely a Fedora problem especially since its not a Fedora team
built kernel. But would still appreciate the help. Thanks/

Test Fedora 25 image. If it works, tell us. If it does not tell us too.

If you have received this email in error please notify the system
manager. This message contains confidential information and is intended
only for the individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please notify
the sender immediately by e-mail if you have received this e-mail by
mistake and delete this e-mail from your system. If you are not the
intended recipient you are notified that disclosing, copying,
distributing or taking any action in reliance on the contents of this
information is strictly prohibited.

And I do not know how many your company rules I just broke by replying
to your email without removing it first...
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Peter Robinson
2016-10-21 13:11:36 UTC
Permalink
Post by Aly Dharshi
I have tried the Fedora 25 build and X comes up on the PI3 fine. BUT I
have found it to be rather heavy. This is my opinion but Midori works but
isn't the greatest. Firefox installs but seg faults on start up.
I've been running firefox just fine on all the builds since we announced
them. Is this the "Kraxel" image/kernel? You'll need to provide more useful
information than "it seg faults".
Post by Aly Dharshi
Overall it seems that the F25 build needs a lot of tuning to run on the Pi
smoothly. But this is to be expected. Performance is sluggish and not like
on an X86.
It's a $35 device... you can't expect x86 laptop performance. I would
suggest you have a good quality micro SD card, it makes a lot of difference
(Samsung EVO or SanDisk Ultra are the two I use).
Post by Aly Dharshi
Kraxel's kernel is 64 bit and seems to run smoother on the V8. Only thing
lacking is to get X going on the actual console of the machine as opposed
to going they XRDP. Also he is running a 4.7.x vintage of kernel. Again
nothing wrong with that at all at the moment.
64 bit user space as well? A 64 bit kernel with a 32 bit user space will
have no difference. You can run Kraxel's kernel if you want but there's
not much we can do to help you with that.
Post by Aly Dharshi
I am also interested in the Gigabyte server box with has Cavium chips. But
that one has nothing to do with this thread and is targeted imho to
RHEL7.3. Thanks.
We support those already in Fedora 25 too.
Post by Aly Dharshi
Cheers,
ASD.
Aly S Dharshi B.Sc. Computer Science, RHCE
Technology Strategist
m. 780 722 3461 t. 780 428 5226
<https://esig.ly/links/170280> <https://esig.ly/links/170282>
<https://esig.ly/links/170304>
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delete this e-mail from your system. If you are not the intended recipient
you are notified that disclosing, copying, distributing or taking any
action in reliance on the contents of this information is strictly
prohibited.
Think before you print.
I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's
kit.
[..]
Would anybody have any thoughts on solving this issue. I know it may not
be completely a Fedora problem especially since its not a Fedora team
built kernel. But would still appreciate the help. Thanks/
Test Fedora 25 image. If it works, tell us. If it does not tell us too.
If you have received this email in error please notify the system
manager. This message contains confidential information and is intended
only for the individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please notify
the sender immediately by e-mail if you have received this e-mail by
mistake and delete this e-mail from your system. If you are not the
intended recipient you are notified that disclosing, copying,
distributing or taking any action in reliance on the contents of this
information is strictly prohibited.
And I do not know how many your company rules I just broke by replying
to your email without removing it first...
_______________________________________________
_______________________________________________
Paul Whalen
2016-10-21 16:21:33 UTC
Permalink
----- Original Message -----
Post by Aly Dharshi
I have tried the Fedora 25 build and X comes up on the PI3 fine. BUT I have
found it to be rather heavy. This is my opinion but Midori works but isn't
the greatest. Firefox installs but seg faults on start up.
I've been running firefox just fine on all the builds since we announced
them. Is this the "Kraxel" image/kernel? You'll need to provide more useful
information than "it seg faults".
If the image is aarch64 - https://bugzilla.redhat.com/show_bug.cgi?id=1354671
Post by Aly Dharshi
Overall it seems that the F25 build needs a lot of tuning to run on the Pi
smoothly. But this is to be expected. Performance is sluggish and not like
on an X86.
It's a $35 device... you can't expect x86 laptop performance. I would suggest
you have a good quality micro SD card, it makes a lot of difference (Samsung
EVO or SanDisk Ultra are the two I use).
Kraxel's kernel is 64 bit and seems to run smoother on the V8. Only thing
lacking is to get X going on the actual console of the machine as opposed to
going they XRDP. Also he is running a 4.7.x vintage of kernel. Again nothing
wrong with that at all at the moment.
64 bit user space as well? A 64 bit kernel with a 32 bit user space will have
no difference. You can run Kraxel's kernel if you want but there's not much
we can do to help you with that.
I am also interested in the Gigabyte server box with has Cavium chips. But
that one has nothing to do with this thread and is targeted imho to RHEL7.3.
Thanks.
We support those already in Fedora 25 too.
Cheers,
ASD.
Aly S Dharshi B.Sc. Computer Science, RHCE
Technology Strategist
m. 780 722 3461 t. 780 428 5226
If you have received this email in error please notify the system manager.
This message contains confidential information and is intended only for the
individual named. If you are not the named addressee you should not
disseminate, distribute or copy this e-mail. Please notify the sender
immediately by e-mail if you have received this e-mail by mistake and
delete this e-mail from your system. If you are not the intended recipient
you are notified that disclosing, copying, distributing or taking any
action in reliance on the contents of this information is strictly
prohibited.
Think before you print.
I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's
kit.
[..]
Would anybody have any thoughts on solving this issue. I know it may not
be completely a Fedora problem especially since its not a Fedora team
built kernel. But would still appreciate the help. Thanks/
Test Fedora 25 image. If it works, tell us. If it does not tell us too.
If you have received this email in error please notify the system
manager. This message contains confidential information and is intended
only for the individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please notify
the sender immediately by e-mail if you have received this e-mail by
mistake and delete this e-mail from your system. If you are not the
intended recipient you are notified that disclosing, copying,
distributing or taking any action in reliance on the contents of this
information is strictly prohibited.
And I do not know how many your company rules I just broke by replying
to your email without removing it first...
_______________________________________________
_______________________________________________
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Aly Dharshi
2016-10-22 00:38:32 UTC
Permalink
Hey Paul,

Yes the image is AARCH64 ! Thanks.

Cheers,

ASD.



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Aly S Dharshi B.Sc. Computer Science, RHCE


Technology Strategist


m. 780 722 3461 t. 780 428 5226


e. ***@dharshi.ca<mailto:***@dharshi.ca> w. alydharshi.com<https://esig.ly/links/170277>



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On Oct 21, 2016, at 10:21 AM, Paul Whalen <***@redhat.com<mailto:***@redhat.com>> wrote:



----- Original Message -----




I have tried the Fedora 25 build and X comes up on the PI3 fine. BUT I have
found it to be rather heavy. This is my opinion but Midori works but isn't
the greatest. Firefox installs but seg faults on start up.

I've been running firefox just fine on all the builds since we announced
them. Is this the "Kraxel" image/kernel? You'll need to provide more useful
information than "it seg faults".

If the image is aarch64 - https://bugzilla.redhat.com/show_bug.cgi?id=1354671




Overall it seems that the F25 build needs a lot of tuning to run on the Pi
smoothly. But this is to be expected. Performance is sluggish and not like
on an X86.

It's a $35 device... you can't expect x86 laptop performance. I would suggest
you have a good quality micro SD card, it makes a lot of difference (Samsung
EVO or SanDisk Ultra are the two I use).



Kraxel's kernel is 64 bit and seems to run smoother on the V8. Only thing
lacking is to get X going on the actual console of the machine as opposed to
going they XRDP. Also he is running a 4.7.x vintage of kernel. Again nothing
wrong with that at all at the moment.

64 bit user space as well? A 64 bit kernel with a 32 bit user space will have
no difference. You can run Kraxel's kernel if you want but there's not much
we can do to help you with that.



I am also interested in the Gigabyte server box with has Cavium chips. But
that one has nothing to do with this thread and is targeted imho to RHEL7.3.
Thanks.

We support those already in Fedora 25 too.



Cheers,

ASD.








Aly S Dharshi B.Sc. Computer Science, RHCE


Technology Strategist


m. 780 722 3461 t. 780 428 5226


e. ***@dharshi.ca<mailto:***@dharshi.ca> w. alydharshi.com<http://alydharshi.com>







If you have received this email in error please notify the system manager.
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delete this e-mail from your system. If you are not the intended recipient
you are notified that disclosing, copying, distributing or taking any
action in reliance on the contents of this information is strictly
prohibited.


Think before you print.




On Oct 20, 2016, at 1:47 PM, Marcin Juszkiewicz < ***@redhat.com<mailto:***@redhat.com> >
wrote:




W dniu 20.10.2016 o 19:38, Aly Dharshi pisze:



I have successfully installed Fedora 24 with onto a RPI3 with Kraxel's


kit.

[..]



Would anybody have any thoughts on solving this issue. I know it may not


be completely a Fedora problem especially since its not a Fedora team


built kernel. But would still appreciate the help. Thanks/

Test Fedora 25 image. If it works, tell us. If it does not tell us too.



If you have received this email in error please notify the system


manager. This message contains confidential information and is intended


only for the individual named. If you are not the named addressee you


should not disseminate, distribute or copy this e-mail. Please notify


the sender immediately by e-mail if you have received this e-mail by


mistake and delete this e-mail from your system. If you are not the


intended recipient you are notified that disclosing, copying,


distributing or taking any action in reliance on the contents of this


information is strictly prohibited.

And I do not know how many your company rules I just broke by replying
to your email without removing it first...
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