Bug 222757 - Some problems in mesa ports related to OpenCL
Summary: Some problems in mesa ports related to OpenCL
Status: New
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Individual Port(s) (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-x11 mailing list
Depends on:
Reported: 2017-10-03 16:27 UTC by shamaz.mazum
Modified: 2017-10-04 00:00 UTC (History)
0 users

See Also:
bugzilla: maintainer-feedback? (x11)

Gallium pipe-loader patch (4.13 KB, patch)
2017-10-03 16:27 UTC, shamaz.mazum
no flags Details | Diff

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Description shamaz.mazum 2017-10-03 16:27:49 UTC
Created attachment 186882 [details]
Gallium pipe-loader patch

Hello. I've tried OpenCL using lang/clover provider and encountered some problems in mesa ports (can be fixed patching graphics/mesa-dri). I use FreeBSD 11.1 and have the port tree updated with portsnap and packages updated with portupgrade

1) OpenCL applications do not work in X11 environment. I have exactly the same problem as described here: bug #214204 (*) The fix is still the same, maybe this is a regression. I attach patch which is combined from an old patch in graphics/mesa-dri/files and the fix. I still do not know how to link -lxcb to opencl targets. Autoconf is very complicated for me, so I do not know what to do.

2) When I call clReleaseContext() from my program, it finishes OK, but program crashes with segmantation fault when calls atexit handlers, having very strange backtrace:

(gdb) bt
#0  0x0000000808534500 in ?? ()
#1  0x0000000800b754d5 in __cxa_finalize (dso=0x0) at /usr/src/lib/libc/stdlib/atexit.c:237
#2  0x0000000800b063d1 in exit (status=0) at /usr/src/lib/libc/stdlib/exit.c:72
#3  0x0000000000400da6 in _start ()
#4  0x0000000800625000 in ?? ()
#5  0x0000000000000000 in ?? ()

clinfo has the same behaviour. I do not know the solution. Any suggestions?

(*) https://lists.freebsd.org/pipermail/freebsd-x11/2016-November/018240.html