Date: Fri, 04 Nov 2016 10:26:07 +0000 From: bugzilla-noreply@freebsd.org To: x11@FreeBSD.org Subject: maintainer-feedback requested: [Bug 214204] Unable to run OpenCL programs while X11 session is active Message-ID: <bug-214204-7141-PtfIThPJN0@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-214204-7141@https.bugs.freebsd.org/bugzilla/> References: <bug-214204-7141@https.bugs.freebsd.org/bugzilla/>
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Alexey Dokuchaev <danfe@FreeBSD.org> has reassigned Bugzilla Automation <bugzilla@FreeBSD.org>'s request for maintainer-feedback to x11@FreeBSD.org: Bug 214204: Unable to run OpenCL programs while X11 session is active https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214204 --- Description --- I've decided to play with OpenCL on AMD A8-5550M APU laptop of mine a bit, = so I've read our wiki [1], installed necessary ports, googled for a simple Ope= nCL program source code [2], built it, and run. It ran OK, but only when I switched from my X11 session to console, or if I= run it as root. Being inside X, it reports: > radeon: Failed to get PCI ID, error number -13 > Using platform: Clover > No devices found. Check OpenCL installation! devel/clinfo also behaves this way (finds no devices) and spits out the same error. My user belongs to "video" group, and permissions on /dev/dri/* are sane (default, "rw-" for "video" group). -13 indicates "permission denied" (-EACCES). Apparently, similar (or perha= ps related) bug was discovered and fixed in Mesa back in 2012 [3]. The code in current Mesa is different though. Perhaps FreeBSD needs special treatment,= or original bug resurfaced. I'm not an expert on Mesa codebase but will gladly provide any additional details and happy to test patches. [1] https://wiki.freebsd.org/Graphics/OpenCL [2] http://simpleopencl.blogspot.ru/2013/06/tutorial-simple-start-with-opencl-a= nd-c .html [3] https://lists.freedesktop.org/archives/mesa-commit/2012-July/038068.html
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