Segfault in src/blender/imbuf/intern/colormanagement.c, line 650 (config = OCIO_configCreateFromFile(configfile)) in colormanagement_init on Debian jessie #39560

New Issue

Valentin · 2014-04-02T11:01:36+02:00

Valentin commented

2014-04-02 11:01:36 +02:00

System Information
Debian jessie/sid, Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Blender Version
Broken: own build, Date: 2014-04-01 17:17, Hash: bfe29e0, Branch master
Worked: In all the official Blender bundles I had before

Short description of error
After starting blender in command line nothing happens and I get the message "Speicherzugriffsfehler" (engl. segmentation fault"), without any stacktrace. I tried around and found out that it fails in src/blender/imbuf/intern/colormanagement.c, line 650, which is »config = OCIO_configCreateFromFile(configfile)«. After commenting it out Blender starts.
I used CMake for the build.
gcc Version: gcc (Debian 4.8.2-16) 4.8.2
git log: commit eed3974d11
opencolorio: version 1.0.8

**System Information** Debian jessie/sid, Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) **Blender Version** Broken: own build, Date: 2014-04-01 17:17, Hash: bfe29e0, Branch master Worked: In all the official Blender bundles I had before **Short description of error** After starting blender in command line nothing happens and I get the message "Speicherzugriffsfehler" (engl. segmentation fault"), without any stacktrace. I tried around and found out that it fails in src/blender/imbuf/intern/colormanagement.c, line 650, which is »config = OCIO_configCreateFromFile(configfile)«. After commenting it out Blender starts. I used CMake for the build. gcc Version: gcc (Debian 4.8.2-16) 4.8.2 git log: commit eed3974d11af6072174a43f6b103c9b64be054e2 opencolorio: version 1.0.8

Valentin commented

2014-04-02 11:01:36 +02:00

Changed status to: 'Open'

Valentin commented

2014-04-02 11:01:36 +02:00

Added subscriber: @blenderscripter

Sergey Sharybin commented

2014-04-03 09:05:15 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-04-03 09:05:15 +02:00

Am i right it only happens with your own builds? If so, please provide full backtrace of the crash. Also, which OCIO library you're using?

Valentin commented

2014-04-03 18:06:37 +02:00

Yes, it happens only with my own builds. I can't find any backtrace, there's nothing in the console and no file in /tmp. Is there another place I should search for it? I use libopencolorio and libopencolorio-dev from the official jessie packages. Hope I could help

Sergey Sharybin commented

2014-04-03 18:12:19 +02:00

To get a backtrace, compile in debug mode, then:

$ gdb ./blender # from whetever your build binary is, this will start gdb's console

run
thread apply all bt

Store the backtrace to the file and attach it here. That would help a bunch.

To get a backtrace, compile in debug mode, then: $ gdb ./blender # from whetever your build binary is, this will start gdb's console > run > thread apply all bt Store the backtrace to the file and attach it here. That would help a bunch.

Valentin commented

2014-04-03 18:36:59 +02:00

Good to know. Here is the backtrace. backtrace.txt

Good to know. Here is the backtrace. [backtrace.txt](https://archive.blender.org/developer/F83875/backtrace.txt)

Sergey Sharybin commented

2014-04-03 18:46:32 +02:00

Added subscriber: @mont29

Sergey Sharybin commented

2014-04-03 18:46:32 +02:00

What's strange in the backtrace is that there's a jump from libyaml-0.3 to libyaml-0.5. This might me caused by the way how debian packages are build -- they might not all be updated to use latest yaml library which would give issues if application uses mix of this libs.

Saied that, we've got special workaround in our install_deps.sh to make sure proper yaml is used on ubuntu.

Think @mont29 might give more info here, he was investigating the issue. But currently it seems the only way for you is to use ow OCIO library to be sure it's linked against proper yaml library.

What's strange in the backtrace is that there's a jump from libyaml-0.3 to libyaml-0.5. This might me caused by the way how debian packages are build -- they might not all be updated to use latest yaml library which would give issues if application uses mix of this libs. Saied that, we've got special workaround in our install_deps.sh to make sure proper yaml is used on ubuntu. Think @mont29 might give more info here, he was investigating the issue. But currently it seems the only way for you is to use ow OCIO library to be sure it's linked against proper yaml library.

Valentin commented

2014-04-03 18:52:41 +02:00

For trying around with coding Blender I can simple outcomment the line and it works for me :-). It should only work right in the official release

Bastien Montagne commented

2014-04-04 22:43:11 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-04-04 22:43:11 +02:00

Bastien Montagne self-assigned this 2014-04-04 22:43:11 +02:00

Bastien Montagne commented

2014-04-04 22:43:11 +02:00

What can I say, except quoting the warning I put in install_deps.sh init message?

WARNING! Ubuntu users: Beware of Trusty!!!
Ubuntu 14.4 comes with a default libyaml-cpp in 0.5 version, while their ocio package still uses the 0.3 version
You have to use '--libyaml-cpp-ver=0.3' option (else Blender will builds with 0.5, and break when using packaged ocio)...

Unfortunately, looks like Debian testing/unstable now has the same issue, so you have to re-run install_deps script with this parameter…

Not a Blender bug at all, thanks for the report anyway.

What can I say, except quoting the warning I put in install_deps.sh init message? > WARNING! Ubuntu users: Beware of Trusty!!! > Ubuntu 14.4 comes with a default libyaml-cpp in 0.5 version, while their ocio package still uses the 0.3 version > You have to use '--libyaml-cpp-ver=0.3' option (else Blender will builds with 0.5, and break when using packaged ocio)... Unfortunately, looks like Debian testing/unstable now has the same issue, so you have to re-run install_deps script with this parameter… Not a Blender bug at all, thanks for the report anyway.

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Segfault in src/blender/imbuf/intern/colormanagement.c, line 650 (config = OCIO_configCreateFromFile(configfile)) in colormanagement_init on Debian jessie #39560