https://bugs.freedesktop.org/show_bug.cgi?id=104837

Bug ID: 104837 Summary: 'radeonsi: Failed to create context' with 32 bit applications Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: rafael.ristovski@gmail.com

Created attachment 137021 --> https://bugs.freedesktop.org/attachment.cgi?id=137021&action=edit dmesg log

Running 32bit OpenGL applications on my AMD card with DRI_PRIME=1 produces the following error, running 64bit applications works just fine. Somehow I suspect virtual memory is the cause.

libGL: pci id for fd 5: 1002:6823, driver radeonsi libGL: OpenDriver: trying /usr/lib32/dri/tls/radeonsi_dri.so libGL: OpenDriver: trying /usr/lib32/dri/radeonsi_dri.so /usr/share/libdrm/amdgpu.ids version: 1.0.0 radeonsi: Failed to create a context. libGL: Using DRI3 for screen 0 radeonsi: Failed to create a context. X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 154 (GLX) Minor opcode of failed request: 3 (X_GLXCreateContext) Value in failed request: 0x0 Serial number of failed request: 31 Current serial number in output stream: 33

At the same time, the following messages are logged in dmesg: (See similar but apparently harmless: https://bugs.freedesktop.org/show_bug.cgi?id=104082)

[433611.485600] amdgpu 0000:03:00.0: swiotlb buffer is full (sz: 2097152 bytes) [433611.485602] amdgpu 0000:03:00.0: swiotlb: coherent allocation failed, size=2097152

Full relevant dmesg log of the accident is attached

Various VRAM/GTT info from boot:

[ 10.485945] [drm] amdgpu kernel modesetting enabled. [ 10.486189] amdgpu 0000:03:00.0: enabling device (0000 -> 0003) [ 10.669296] amdgpu 0000:03:00.0: VRAM: 2048M 0x000000F400000000 - 0x000000F47FFFFFFF (2048M used) [ 10.669298] amdgpu 0000:03:00.0: GTT: 1024M 0x0000000000000000 - 0x000000003FFFFFFF [ 10.669387] [drm] amdgpu: 2048M of VRAM memory ready [ 10.669388] [drm] amdgpu: 3072M of GTT memory ready. [ 10.670190] amdgpu 0000:03:00.0: PCIE GART of 1024M enabled (table at 0x000000F400040000). [ 10.685934] [drm] amdgpu: dpm initialized [ 11.043323] [drm] Initialized amdgpu 3.23.0 20150101 for 0000:03:00.0 on minor 1

Sysinfo:

- Gentoo x86_64 - llvm/clang/mesa/libdrm and friends, including drivers all pulled from git as of ~2 days ago.

- Intel HD 4400 Gen7.5 Haswell - i915 - AMD Radeon HD 8850M - amdgpu - Both drivers are using DRI3 for PRIME