openCL application gives error after update

could you test with a newer mesa from this ppa

https://launchpad.net/~ubuntu-x-swat/+archive/ubuntu/updates

it's got latest bugfix release of the series, 19.2.8, and it's now pending as a distro update as well

I've upgraded to Ubuntu 19.10 and used the PPA that you recommended and the
error is still there. I could give you a patch with the changes that I made
to
ac_rtld.c that fixed the problem for my computer.

On Wed, Jan 22, 2020 at 5:35 AM Timo Aaltonen <email address hidden> wrote:

> could you test with a newer mesa from this ppa
>
> https://launchpad.net/~ubuntu-x-swat/+archive/ubuntu/updates
>
> it's got latest bugfix release of the series, 19.2.8, and it's now
> pending as a distro update as well
>
> ** Changed in: mesa (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1860042
>
> Title:
> openCL application gives error after update
>
> Status in mesa package in Ubuntu:
> Incomplete
>
> Bug description:
> My OpenCL program was working normally until a software update.
>
> The program prints out:
>
> ac_rtld error: !s->is_rx
> LLVM failed to upload shader
>
> when clEnqueueNDRangeKernel is called.
>
> I've downloaded the source for mesa and traced the problem to the
> gallium radeon driver. The first error message is from
>
> mesa-19.2.1/src/amd/common/ac_rtld.c
>
> and the second error message is from
>
> mesa-19.2.1/src/gallium/drivers/radeonsi/si_compute.c
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: libllvm9 1:9-2~ubuntu18.04.1
> ProcVersionSignature: Ubuntu 4.15.0-74.84-lowlatency 4.15.18
> Uname: Linux 4.15.0-74-lowlatency x86_64
> ApportVersion: 2.20.9-0ubuntu7.9
> Architecture: amd64
> CurrentDesktop: ubuntu:GNOME
> Date: Thu Jan 16 14:35:15 2020
> InstallationDate: Installed on 2018-04-28 (628 days ago)
> InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64
> (20180426)
> SourcePackage: mesa-opencl-icd
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1860042/+subscriptions
>

please do, the other bug does mention that mesa master works, but there have been no changes to that file other than a single commit which doesn't look related..

I fixed it myself. I'm going to try to get a merge request.

But someone said on your other bug (1860199) that mesa master works already, so just post your patch here first.

Hi,

looks as I have the same issue:

Jan 27 12:26:44 XXXXXXXX libreoffice-calc.desktop[21996]: ac_rtld error: !s->is_rx
Jan 27 12:26:44 XXXXXXXX libreoffice-calc.desktop[21996]: LLVM failed to upload shader

with mesa-opencl-icd 19.2.1-1ubuntu1~18.04.1

Kind regards,

Nikolas

this is caused by the hardening patch in libclc

Hello Timothy, or anyone else affected,

Accepted libclc into eoan-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/libclc/0.2.0+git20190827-1ubuntu0.19.10.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-eoan to verification-done-eoan. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-eoan. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Timothy, or anyone else affected,

Accepted libclc into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/libclc/0.2.0+git20190827-1ubuntu0.18.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

don't touch the status..

Hi,

I can confirm the fix works for me on Eoan.

Thank you very much!

Nikolas

oh just saw your note..

right, the tag needs changing after being verified, and thanks!

The eoan-proposed repository didn't work for me. This is what apt-cache says:

mesa-opencl-icd:
  Installed: 19.2.8-0ubuntu0~19.10.1
  Candidate: 19.2.8-0ubuntu0~19.10.1
  Version table:
 *** 19.2.8-0ubuntu0~19.10.1 500
        500 http://ca.archive.ubuntu.com/ubuntu eoan-proposed/universe amd64 Packages
        100 /var/lib/dpkg/status
     19.2.8-0ubuntu0~19.10.1~ppa1 500
        500 http://ppa.launchpad.net/ubuntu-x-swat/updates/ubuntu eoan/main amd64 Packages
     19.2.1-1ubuntu1 500
        500 http://ca.archive.ubuntu.com/ubuntu eoan/universe amd64 Packages

wrong package, this is not related to mesa

check libclc-amdgcn instead

in any case, this has been verified on eoan already, bionic needs to be verified too

Since we're working on getting 18.04.4 prepared, I will be conditionally releasing it without full verification.

This bug was fixed in the package libclc - 0.2.0+git20190827-1ubuntu0.19.10.1

---------------
libclc (0.2.0+git20190827-1ubuntu0.19.10.1) eoan; urgency=medium

  * hardening.patch: Dropped, breaks opencl runtime. (LP: #1860042)

 -- Timo Aaltonen <email address hidden> Tue, 28 Jan 2020 10:22:43 +0200

The verification of the Stable Release Update for libclc has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package libclc - 0.2.0+git20190827-1ubuntu0.18.04.1

---------------
libclc (0.2.0+git20190827-1ubuntu0.18.04.1) bionic; urgency=medium

  * hardening.patch: Dropped, breaks opencl runtime. (LP: #1860042)

 -- Timo Aaltonen <email address hidden> Tue, 28 Jan 2020 10:22:43 +0200

This bug was fixed in the package libclc - 0.2.0+git20190827-4

---------------
libclc (0.2.0+git20190827-4) unstable; urgency=medium

  * use-python3.diff: Updated to fix new issues. (Closes: #950032)

 -- Timo Aaltonen <email address hidden> Wed, 05 Feb 2020 18:58:46 +0200