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Try unsynchronized userptr if regular one fails.
https://github.com/FreeBSDDesktop/kms-drm/issues/197
Process 51117 stopped
* thread #1, name = 'clinfo', stop reason = signal SIGABRT
frame #0: 0x000000080044fe7a libc.so.7`__sys_thr_kill at thr_kill.S:4
(lldb) bt
* thread #1, name = 'clinfo', stop reason = signal SIGABRT
* frame #0: 0x000000080044fe7a libc.so.7`__sys_thr_kill at thr_kill.S:4
frame #1: 0x000000080044f7e4 libc.so.7`__raise(s=6) at raise.c:52:10
frame #2: 0x00000008003b3a89 libc.so.7`abort at abort.c:67:8
frame #3: 0x000000080043a711 libc.so.7`__assert(func=<unavailable>, file=<unavailable>, line=<unavailable>, failedexpr=<unavailable>) at assert.c:51:2
frame #4: 0x0000000800e255ad libigdrcl.so`NEO::debugBreak(line=58, file="compute-runtime-19.48.14977/runtime/os_interface/linux/drm_memory_manager.cpp") at debug_helpers.cpp:19:9
frame #5: 0x000000080104b4e5 libigdrcl.so`NEO::DrmMemoryManager::DrmMemoryManager(this=0x00000008018e7300, mode=gemCloseWorkerActive, forcePinAllowed=true, validateHostPtrMemory=true, executionEnvironment=0x00000008018f6180) at drm_memory_manager.cpp:58:9
frame #6: 0x0000000800f07bb1 libigdrcl.so`std::__1::__unique_if<NEO::DrmMemoryManager>::__unique_single std::__1::make_unique<NEO::DrmMemoryManager, NEO::gemCloseWorkerMode, bool, bool, NEO::ExecutionEnvironment&>(__args=0x00007fffffffda4c, __args=0x00007fffffffda4b, __args=0x00007fffffffda4a, __args=0x00000008018f6180) at memory:3003:32
frame #7: 0x0000000800f07ad4 libigdrcl.so`NEO::MemoryManager::createMemoryManager(executionEnvironment=0x00000008018f6180) at create_drm_memory_manager.cpp:16:12
frame #8: 0x0000000800fbce8b libigdrcl.so`NEO::ExecutionEnvironment::initializeMemoryManager(this=0x00000008018f6180) at execution_environment.cpp:63:25
frame #9: 0x0000000801058c9d libigdrcl.so`NEO::Platform::initialize(this=0x00000008025ea0a0) at platform.cpp:144:27
frame #10: 0x0000000800e259f2 libigdrcl.so`::clGetPlatformIDs(numEntries=1, platforms=0x0000000800251500, numPlatforms=0x0000000000000000) at api.cpp:82:35
frame #11: 0x0000000800e25c54 libigdrcl.so`::clIcdGetPlatformIDsKHR(numEntries=1, platforms=0x0000000800251500, numPlatforms=0x0000000000000000) at api.cpp:112:14
frame #12: 0x000000080025d0e0 libOpenCL.so.1`__initClIcd + 3392
frame #13: 0x00000008006a61a8 libthr.so.3`_thr_once(once_control=0x000000080026e038, init_routine=(libOpenCL.so.1`__initClIcd)) at thr_once.c:98:2
frame #14: 0x000000080025b670 libOpenCL.so.1`clGetPlatformIDs_hid + 320
frame #15: 0x000000000020f9cd clinfo`main(argc=<unavailable>, argv=0x00007fffffffe188) at clinfo.c:2656:10
frame #16: 0x000000000020713d clinfo`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1.c:76:7
(lldb) f 5
frame #5: 0x000000080104b4e5 libigdrcl.so`NEO::DrmMemoryManager::DrmMemoryManager(this=0x00000008018e7300, mode=gemCloseWorkerActive, forcePinAllowed=true, validateHostPtrMemory=true, executionEnvironment=0x00000008018f6180) at drm_memory_manager.cpp:58:9
50
51 if (forcePinEnabled || validateHostPtrMemory) {
52 pinBB = allocUserptr(reinterpret_cast<uintptr_t>(memoryForPinBB), MemoryConstants::pageSize, 0, 0);
53 }
54
55 if (!pinBB) {
56 alignedFreeWrapper(memoryForPinBB);
57 memoryForPinBB = nullptr;
-> 58 DEBUG_BREAK_IF(true);
59 UNRECOVERABLE_IF(validateHostPtrMemory);
60 }
61 }
--- shared/source/os_interface/linux/drm_memory_manager.cpp.orig 2020-02-28 16:16:42 UTC
+++ shared/source/os_interface/linux/drm_memory_manager.cpp
@@ -148,7 +148,17 @@ NEO::BufferObject *DrmMemoryManager::allocUserptr(uint
userptr.flags = static_cast<uint32_t>(flags);
if (this->getDrm(rootDeviceIndex).ioctl(DRM_IOCTL_I915_GEM_USERPTR, &userptr) != 0) {
- return nullptr;
+ if (errno == ENODEV && userptr.flags == 0) {
+ userptr.flags = I915_USERPTR_UNSYNCHRONIZED;
+ if (this->getDrm(rootDeviceIndex).ioctl(DRM_IOCTL_I915_GEM_USERPTR, &userptr) != 0) {
+ if (geteuid() != 0) {
+ printDebugString(true, stderr, "%s", "ioctl(I915_GEM_USERPTR) failed. Try running as root but expect poor stability.\n");
+ }
+ return nullptr;
+ }
+ } else {
+ return nullptr;
+ }
}
auto res = new (std::nothrow) BufferObject(&getDrm(rootDeviceIndex), userptr.handle, rootDeviceIndex);
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