[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 Bernd Steinhauser changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |CODE_FIX --- Comment #18 from Bernd Steinhauser --- At some point (didn't have a closer look), this was fixed and does now work as expected without workarounds. (Tested: 4.5.1) -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #17 from Bernd Steinhauser --- Ok, it does now boot and seems to work. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #16 from Bernd Steinhauser --- Thanks, I'll give it a try. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 Oded Gabbay changed: What|Removed |Added Attachment #160951|0 |1 is obsolete|| --- Comment #15 from Oded Gabbay --- Created attachment 160961 --> https://bugzilla.kernel.org/attachment.cgi?id=160961&action=edit hacky workaround for module order problem -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #14 from Oded Gabbay --- I attached a new patch which should solve you the problem when compiling all the drivers into the kernel image. This is a hacky workaround, so this is not the final solution, but it will help you continue with your setup, I hope. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 Oded Gabbay changed: What|Removed |Added Attachment #160721|0 |1 is obsolete|| Attachment #160751|0 |1 is obsolete|| --- Comment #13 from Oded Gabbay --- Created attachment 160951 --> https://bugzilla.kernel.org/attachment.cgi?id=160951&action=edit workaround for the module order problem -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #12 from Oded Gabbay --- As I said, there is definitely a bug when compiling both radeon and amdkfd inside the kernel. I'm working on fixing it, but that could take a few days. In the meantime, the only way to make it work without touching the code, is to either compile both drivers as modules or just radeon as module. No need for further experiments. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #11 from Bernd Steinhauser --- Hm, ok. So should I still try the steps above? Because trying to use drm_radeon as a module would require me to do some testing with that setup before. (In reply to Oded Gabbay from comment #8) > 2. You said CONFIG_HSA_AMD=y. What's the value of CONFIG_DRM_RADEON ? If its > "m", could you change it to "y" ? I'm using a static initrd (only a basic system, but doesn't contain any kernel modules), so all drivers necessary to start the system (including drm_radeon) are compiled in. Regarding the tree: I took plain 3.18 (b2776b) and then merged the drm-next branch from the repo mentioned above. iirc, it was a fast forward. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #10 from Oded Gabbay --- Hi, So I managed to recreate the bug on my setup. This is happening because you compiled all the modules inside the kernel. I need to address that, but for now, if you will compile them as "m", everything is supposed to work. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #9 from Oded Gabbay --- One more thing, I'm trying to understand the exact tree you are using so we will look at the same code. Did you just took drm-next, or did you manually merged between trees ? If you did a manual merge, could you try instead to just take drm-next ? It's already based on 3.18.0 -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #8 from Oded Gabbay --- Hi, Three things, please: 1. Please try the attached patch. It tries to verify more pointers before using them. 2. You said CONFIG_HSA_AMD=y. What's the value of CONFIG_DRM_RADEON ? If its "m", could you change it to "y" ? 3. I would still like to ask if you could check with the following config: CONFIG_DRM_RADEON="m" CONFIG_HSA_AMD="m" Thanks Oded -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #7 from Oded Gabbay --- Created attachment 160751 --> https://bugzilla.kernel.org/attachment.cgi?id=160751&action=edit More checks on pointers being used -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #6 from Bernd Steinhauser --- Tried the patch, exactly the same result. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #5 from Bernd Steinhauser --- (In reply to Michel Dänzer from comment #2) > Does it also happen with CONFIG_HSA_AMD=m? Only tried CONFIG_HSA_AMD=n, not module, but this happens so early that I'm confident it does not matter. Will try the patch, thanks. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #4 from Oded Gabbay --- Hi, Please try the attached patch. -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 Oded Gabbay changed: What|Removed |Added CC||oded.gabbay at amd.com --- Comment #3 from Oded Gabbay --- Created attachment 160721 --> https://bugzilla.kernel.org/attachment.cgi?id=160721&action=edit Print errors in case of NULL pointers and don't dereference them -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #2 from Michel Dänzer --- Does it also happen with CONFIG_HSA_AMD=m? -- You are receiving this mail because: You are watching the assignee of the bug.
[Bug 89661] Kernel panic when trying use amdkfd driver on Kaveri
https://bugzilla.kernel.org/show_bug.cgi?id=89661 --- Comment #1 from Bernd Steinhauser --- Created attachment 160441 --> https://bugzilla.kernel.org/attachment.cgi?id=160441&action=edit Picture of the kernel panic output -- You are receiving this mail because: You are watching the assignee of the bug.
