Bug 68301
| Summary: | [bisected] Headless OpenCL broken | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Niels Ole Salscheider (niels_ole) |
| Component: | Video(DRI - non Intel) | Assignee: | drivers_video-dri |
| Status: | NEW --- | ||
| Severity: | normal | CC: | alexdeucher, niels_ole |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.13 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | dmesg output | ||
Make sure your kernel has this patch: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f244d8b623dae7a7bc695b0336f67729b95a9736 Do graphics work ok for you with runpm=1? I.e., is it just compute that's causing a problem? > Make sure your kernel has this patch: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ > ?id=f244d8b623dae7a7bc695b0336f67729b95a9736 My kernel has this patch but it does not help. > Do graphics work ok for you with runpm=1? I.e., is it just compute that's > causing a problem? It is a bit difficult to test this because I only have SSH access to the machine at the moment. Without any parameter, I get the already mentioned error for compute and a GPU lockup entry in dmesg when I try to start X. With runpm=1, my SSH session hangs a few seconds after I load the radeon module and I cannot open another one. I can still ping the computer, though. Unfortunately, it will be a few weeks until I have physical access to the machine again. |
Created attachment 121331 [details] dmesg output Since 10ebc0bc09344ab6310309169efc73dfe6c23d72, headless OpenCL is broken on my university's Radeon S7000 unless I pass "radeon.runpm=0". The first OpenCL program after a reboot seems to work, but all after that output an error similar to the following: radeon: Failed to allocate virtual address for buffer: radeon: size : 4352 bytes radeon: alignment : 4096 bytes radeon: domains : 4 radeon: va : 0x0000000000800000 radeon: Failed to allocate virtual address for buffer: radeon: size : 4352 bytes radeon: alignment : 4096 bytes radeon: domains : 4 radeon: va : 0x0000000000800000 In dmesg, I can see that some parts of the initialization routine are repeated: [ 348.906146] [drm] probing gen 2 caps for device 8086:151 = 261ad03/e [ 348.906151] [drm] PCIE gen 3 link speeds already enabled [ 348.909465] [drm] PCIE GART of 1024M enabled (table at 0x0000000000478000). [...] After that, the GPU keeps locking up. I have attached the dmesg output.