Bug 101485 - Compiling Darktable kernel leads to segfault
Summary: Compiling Darktable kernel leads to segfault
Alias: None
Product: Beignet
Classification: Unclassified
Component: Beignet (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Zhigang Gong
QA Contact:
Depends on:
Reported: 2017-06-17 20:02 UTC by Bruno Pagani
Modified: 2018-10-12 21:26 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:


Description Bruno Pagani 2017-06-17 20:02:53 UTC
Trying to start Darktable (https://www.darktable.org/, with OpenCL forcibly enabled through opencl_disable_drivers_blacklist=true in .config/darktable/darktablerc since it’s now blacklisted) results in segfault.

There is a report at https://bugs.archlinux.org/task/54399, and another at https://bugzilla.redhat.com/show_bug.cgi?id=1460400#c10, both provide backtraces.

Please tell if you need more infos, trying more debugging steps, etc.
Comment 1 Bruno Pagani 2017-10-27 16:01:28 UTC
This bug goes away when compiling Beignet 1.3.1 with LLVM 3.9 (I was testing with 1.3.1 + LLVM 4.0 before).

I cannot test it under Beignet 1.3.2 compiled with either LLVM 3.9 or LLVM 5.0 because I get this instead:

Beignet: self-test failed: (3, 7, 5) + (5, 7, 3) returned (6, 7, 5)
See README.md or http://www.freedesktop.org/wiki/Software/Beignet/
Beignet: disabling non-working device
Comment 2 Rebecca Palmer 2018-01-04 22:46:17 UTC
The "self-test failed" message in 1.3.2 is probably https://bugs.freedesktop.org/show_bug.cgi?id=102137 - see there for a fix.
Comment 3 Bruno Pagani 2018-01-06 14:17:47 UTC
Adding this fix results in Darktable crashing again…
Comment 4 GitLab Migration User 2018-10-12 21:26:23 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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