this is darktable 2.4.3 reporting a segfault: #0 0x00007f0092e46bac in __waitpid (pid=529, stat_loc=0x0, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29 #1 0x00007f0093121a28 in _dt_sigsegv_handler () from /usr/bin/../lib64/darktable/libdarktable.so #2 #3 0x00007f00454deb4b in gbe::Scalarize::scalarizeInsert(llvm::InsertElementInst*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #4 0x00007f00454e1425 in gbe::Scalarize::scalarize(llvm::Instruction*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #5 0x00007f00454e17cf in gbe::Scalarize::runOnFunction(llvm::Function&) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #6 0x00007f002aaa152d in llvm::FPPassManager::runOnFunction(llvm::Function&) () from /usr/lib/llvm/5/lib64/libLLVMCore.so.5 #7 0x00007f002b11e35e in (anonymous namespace)::CGPassManager::runOnModule(llvm::Module&) () from /usr/lib/llvm/5/lib64/libLLVMAnalysis.so.5 #8 0x00007f002aaa20d6 in llvm::legacy::PassManagerImpl::run(llvm::Module&) () from /usr/lib/llvm/5/lib64/libLLVMCore.so.5 #9 0x00007f00455078dc in gbe::llvmToGen(gbe::ir::Unit&, void const*, int, bool, int, std::__cxx11::basic_string, std::allocator >&) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #10 0x00007f00454988bc in gbe::Program::buildFromLLVMModule(void const*, std::__cxx11::basic_string, std::allocator >&, int) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #11 0x00007f00455ac371 in gbe::genProgramNewFromLLVM(unsigned int, void const*, void const*, char const*, unsigned long, char*, unsigned long*, int, char const*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #12 0x00007f00454a1f2f in gbe::programNewFromSource(unsigned int, char const*, unsigned long, char const*, char*, unsigned long*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so #13 0x00007f0068595424 in cl_program_build () from /usr/lib64/libOpenCL.so #14 0x00007f006858bd37 in clBuildProgram () from /usr/lib64/libOpenCL.so #15 0x00007f009312ab2a in dt_opencl_build_program () from /usr/bin/../lib64/darktable/libdarktable.so #16 0x00007f009312c0a3 in dt_opencl_device_init () from /usr/bin/../lib64/darktable/libdarktable.so #17 0x00007f0093130bc7 in dt_opencl_init () from /usr/bin/../lib64/darktable/libdarktable.so #18 0x00007f00930d1864 in dt_init () from /usr/bin/../lib64/darktable/libdarktable.so #19 0x000055fa69a1d886 in main () ========= Id Target Id Frame * 1 Thread 0x7f00936a3a80 (LWP 454) "darktable" 0x00007f0092e46bac in __waitpid (pid=529, stat_loc=0x0, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29 2 Thread 0x7f0080b56700 (LWP 455) "gmain" 0x00007f0092b669e4 in __GI___poll (fds=0x55fa6b40cef0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 3 Thread 0x7f007bfff700 (LWP 456) "pool" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 4 Thread 0x7f007b7fe700 (LWP 457) "gdbus" 0x00007f0092b669e4 in __GI___poll (fds=0x55fa6b419ed0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 5 Thread 0x7f006bfff700 (LWP 458) "threaded-ml" 0x00007f0092b669e4 in __GI___poll (fds=0x7f0064007170, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 6 Thread 0x7f006b7fe700 (LWP 499) "worker 0" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 7 Thread 0x7f006affd700 (LWP 500) "worker 1" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 8 Thread 0x7f006a7fc700 (LWP 501) "worker 2" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 9 Thread 0x7f0069ffb700 (LWP 502) "worker 3" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 10 Thread 0x7f00697fa700 (LWP 503) "worker 4" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 11 Thread 0x7f0068ff9700 (LWP 504) "worker 5" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 12 Thread 0x7f0047fff700 (LWP 505) "worker 6" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 13 Thread 0x7f00477fe700 (LWP 506) "worker 7" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 14 Thread 0x7f0046ffd700 (LWP 507) "kicker" 0x00007f0092b3d158 in __GI___nanosleep (requested_time=requested_time@entry=0x7f0046feeb60, remaining=remaining@entry=0x7f0046feeb60) at ../sysdeps/unix/sysv/linux/nanosleep.c:27 15 Thread 0x7f00467fc700 (LWP 508) "worker res 0" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 16 Thread 0x7f0045ffb700 (LWP 509) "worker res 1" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 17 Thread 0x7f002582b700 (LWP 527) "darktable" 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b4b3090) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 ========= Thread 17 (Thread 0x7f002582b700 (LWP 527)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b4b3090) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b4b3040, cond=0x55fa6b4b3068) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f002581cae0, __canceltype = 0, __prev = 0x0} cbuffer = {wseq = 0, cond = 0x55fa6b4b3068, mutex = 0x55fa6b4b3040, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 0 #2 __pthread_cond_wait (cond=0x55fa6b4b3068, mutex=0x55fa6b4b3040) at pthread_cond_wait.c:655 No locals. #3 0x00007f00685a54f9 in worker_thread_function () from /usr/lib64/libOpenCL.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f002582b700) at pthread_create.c:465 pd = 0x7f002582b700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139638606051072, 3379020518807342106, 140724215026222, 140724215026223, 139638597660672, 139638606051072, -3394313058699146214, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 16 (Thread 0x7f0045ffb700 (LWP 509)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 1 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f0045fecac0, __canceltype = 1174386432, __prev = 0x0} cbuffer = {wseq = 18, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 9 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093137f1f in dt_control_work_res () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f0045ffb700) at pthread_create.c:465 pd = 0x7f0045ffb700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639151113984, 3379020518807342106, 140724215056734, 140724215056735, 139639142723584, 139639151113984, -3394523623765799910, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 15 (Thread 0x7f00467fc700 (LWP 508)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 1 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f00467edac0, __canceltype = 0, __prev = 0x0} cbuffer = {wseq = 16, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 8 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093137f1f in dt_control_work_res () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f00467fc700) at pthread_create.c:465 pd = 0x7f00467fc700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639159506688, 3379020518807342106, 140724215056670, 140724215056671, 139639151116288, 139639159506688, -3394520324694045670, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 14 (Thread 0x7f0046ffd700 (LWP 507)): #0 0x00007f0092b3d158 in __GI___nanosleep (requested_time=requested_time@entry=0x7f0046feeb60, remaining=remaining@entry=0x7f0046feeb60) at ../sysdeps/unix/sysv/linux/nanosleep.c:27 resultvar = 18446744073709551100 sc_cancel_oldtype = 0 #1 0x00007f0092b3d01a in __sleep (seconds=0) at ../sysdeps/posix/sleep.c:55 save_errno = 0 ts = {tv_sec = 0, tv_nsec = 968997552} #2 0x00007f0093137b62 in dt_control_worker_kicker () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #3 0x00007f0092e3a90a in start_thread (arg=0x7f0046ffd700) at pthread_create.c:465 pd = 0x7f0046ffd700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639167899392, 3379020518807342106, 140724215056670, 140724215056671, 139639159508992, 139639167899392, -3394521425816286182, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #4 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 13 (Thread 0x7f00477fe700 (LWP 506)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f00477efaf0, __canceltype = 1199564544, __prev = 0x0} cbuffer = {wseq = 14, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 7 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f00477fe700) at pthread_create.c:465 pd = 0x7f00477fe700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639176292096, 3379020518807342106, 140724215056670, 140724215056671, 139639167901696, 139639176292096, -3394518126744531942, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 12 (Thread 0x7f0047fff700 (LWP 505)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f0047ff0af0, __canceltype = 1207957248, __prev = 0x0} cbuffer = {wseq = 12, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 6 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f0047fff700) at pthread_create.c:465 pd = 0x7f0047fff700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639184684800, 3379020518807342106, 140724215056670, 140724215056671, 139639176294400, 139639184684800, -3394519240751674342, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 11 (Thread 0x7f0068ff9700 (LWP 504)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f0068feaaf0, __canceltype = 1761580800, __prev = 0x0} cbuffer = {wseq = 8, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 4 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f0068ff9700) at pthread_create.c:465 pd = 0x7f0068ff9700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639738308352, 3379020518807342106, 140724215056670, 140724215056671, 139639729917952, 139639738308352, -3394481845545169894, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 10 (Thread 0x7f00697fa700 (LWP 503)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f00697ebaf0, __canceltype = 1769973504, __prev = 0x0} cbuffer = {wseq = 10, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 5 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f00697fa700) at pthread_create.c:465 pd = 0x7f00697fa700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639746701056, 3379020518807342106, 140724215056670, 140724215056671, 139639738310656, 139639746701056, -3394478546473415654, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 9 (Thread 0x7f0069ffb700 (LWP 502)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f0069fecaf0, __canceltype = 1778366208, __prev = 0x0} cbuffer = {wseq = 6, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 3 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f0069ffb700) at pthread_create.c:465 pd = 0x7f0069ffb700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639755093760, 3379020518807342106, 140724215056670, 140724215056671, 139639746703360, 139639755093760, -3394479643300688870, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 8 (Thread 0x7f006a7fc700 (LWP 501)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f006a7edaf0, __canceltype = 1786758912, __prev = 0x0} cbuffer = {wseq = 4, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 2 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f006a7fc700) at pthread_create.c:465 pd = 0x7f006a7fc700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639763486464, 3379020518807342106, 140724215056670, 140724215056671, 139639755096064, 139639763486464, -3394476344228934630, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 7 (Thread 0x7f006affd700 (LWP 500)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f006afeeaf0, __canceltype = 1795151616, __prev = 0x0} cbuffer = {wseq = 2, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 1 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f006affd700) at pthread_create.c:465 pd = 0x7f006affd700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639771879168, 3379020518807342106, 140724215056670, 140724215056671, 139639763488768, 139639771879168, -3394477445351175142, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 6 (Thread 0x7f006b7fe700 (LWP 499)): #0 0x00007f0092e418f6 in futex_wait_cancelable (private=, expected=0, futex_word=0x55fa6b440ed8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88 __ret = -512 oldtype = 0 err = #1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55fa6b440e60, cond=0x55fa6b440eb0) at pthread_cond_wait.c:502 spin = 0 buffer = {__routine = 0x7f0092e41700 <__condvar_cleanup_waiting>, __arg = 0x7f006b7efaf0, __canceltype = 0, __prev = 0x0} cbuffer = {wseq = 0, cond = 0x55fa6b440eb0, mutex = 0x55fa6b440e60, private = 0} err = g = 0 flags = signals = 0 result = 0 seq = 0 #2 __pthread_cond_wait (cond=0x55fa6b440eb0, mutex=0x55fa6b440e60) at pthread_cond_wait.c:655 No locals. #3 0x00007f0093138c23 in dt_control_work () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #4 0x00007f0092e3a90a in start_thread (arg=0x7f006b7fe700) at pthread_create.c:465 pd = 0x7f006b7fe700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639780271872, 3379020518807342106, 140724215056670, 140724215056671, 139639771881472, 139639780271872, -3394474146279420902, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #5 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 5 (Thread 0x7f006bfff700 (LWP 458)): #0 0x00007f0092b669e4 in __GI___poll (fds=0x7f0064007170, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 resultvar = 18446744073709551100 sc_cancel_oldtype = 0 #1 0x00007f0079777f41 in poll_func () from /usr/lib64/libpulse.so.0 No symbol table info available. #2 0x00007f0079769751 in pa_mainloop_poll () from /usr/lib64/libpulse.so.0 No symbol table info available. #3 0x00007f0079769dee in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0 No symbol table info available. #4 0x00007f0079769ea0 in pa_mainloop_run () from /usr/lib64/libpulse.so.0 No symbol table info available. #5 0x00007f0079777e89 in thread () from /usr/lib64/libpulse.so.0 No symbol table info available. #6 0x00007f00795157d8 in internal_thread_func () from /usr/lib64/pulseaudio/libpulsecommon-11.1.so No symbol table info available. #7 0x00007f0092e3a90a in start_thread (arg=0x7f006bfff700) at pthread_create.c:465 pd = 0x7f006bfff700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139639788664576, 3379020518807342106, 140724215055726, 140724215055727, 139639780274176, 139639788664576, -3394475260286563302, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #8 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 4 (Thread 0x7f007b7fe700 (LWP 457)): #0 0x00007f0092b669e4 in __GI___poll (fds=0x55fa6b419ed0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 resultvar = 18446744073709551100 sc_cancel_oldtype = 0 #1 0x00007f00924639d6 in g_main_context_poll (priority=, n_fds=2, fds=0x55fa6b419ed0, timeout=, context=0x55fa6b45a510) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:4169 ret = errsv = poll_func = 0x7f00924736f0 #2 g_main_context_iterate (context=0x55fa6b45a510, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:3863 max_priority = 2147483647 timeout = -1 some_ready = nfds = 2 allocated_nfds = 2 fds = 0x55fa6b419ed0 #3 0x00007f0092463d72 in g_main_loop_run (loop=0x55fa6b419d50) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:4064 __func__ = "g_main_loop_run" #4 0x00007f0090b9a356 in gdbus_shared_thread_func (user_data=0x55fa6b45a4e0) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/gio/gdbusprivate.c:275 data = 0x55fa6b45a4e0 #5 0x00007f009248b8b5 in g_thread_proxy (data=0x55fa6b445cf0) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthread.c:784 thread = 0x55fa6b445cf0 #6 0x00007f0092e3a90a in start_thread (arg=0x7f007b7fe700) at pthread_create.c:465 pd = 0x7f007b7fe700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139640048707328, 3379020518807342106, 140724215056446, 140724215056447, 139640040316928, 139640048707328, -3394509330651509734, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #7 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 3 (Thread 0x7f007bfff700 (LWP 456)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 No locals. #1 0x00007f00924a9a8a in g_cond_wait_until (cond=cond@entry=0x55fa6b4431e8, mutex=mutex@entry=0x55fa6b4431e0, end_time=end_time@entry=9221342945) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthread-posix.c:1442 now = {tv_sec = 9206, tv_nsec = 342945691} span = {tv_sec = 14, tv_nsec = 999999309} sampled = 0 res = #2 0x00007f00924380d9 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x55fa6b4431e0, wait=wait@entry=1, end_time=end_time@entry=9221342945) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gasyncqueue.c:422 retval = __func__ = "g_async_queue_pop_intern_unlocked" #3 0x00007f00924386fc in g_async_queue_timeout_pop (queue=0x55fa6b4431e0, timeout=timeout@entry=15000000) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gasyncqueue.c:543 end_time = 9221342945 retval = #4 0x00007f009248c37d in g_thread_pool_wait_for_new_pool () at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthreadpool.c:167 pool = local_wakeup_thread_serial = last_wakeup_thread_serial = have_relayed_thread_marker = #5 g_thread_pool_thread_proxy (data=) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthreadpool.c:364 free_pool = pool = #6 0x00007f009248b8b5 in g_thread_proxy (data=0x55fa6b445c50) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthread.c:784 thread = 0x55fa6b445c50 #7 0x00007f0092e3a90a in start_thread (arg=0x7f007bfff700) at pthread_create.c:465 pd = 0x7f007bfff700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139640057100032, 3379020518807342106, 140724215056350, 140724215056351, 139640048709632, 139640057100032, -3394510444658652134, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #8 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 2 (Thread 0x7f0080b56700 (LWP 455)): #0 0x00007f0092b669e4 in __GI___poll (fds=0x55fa6b40cef0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 resultvar = 18446744073709551100 sc_cancel_oldtype = 0 #1 0x00007f00924639d6 in g_main_context_poll (priority=, n_fds=1, fds=0x55fa6b40cef0, timeout=, context=0x55fa6b445920) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:4169 ret = errsv = poll_func = 0x7f00924736f0 #2 g_main_context_iterate (context=context@entry=0x55fa6b445920, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:3863 max_priority = 2147483647 timeout = -1 some_ready = nfds = 1 allocated_nfds = 1 fds = 0x55fa6b40cef0 #3 0x00007f0092463afc in g_main_context_iteration (context=0x55fa6b445920, may_block=may_block@entry=1) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:3929 retval = #4 0x00007f0092463b41 in glib_worker_main (data=) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gmain.c:5724 No locals. #5 0x00007f009248b8b5 in g_thread_proxy (data=0x55fa6b445c00) at /tmp/portage/dev-libs/glib-2.54.3-r6/work/glib-2.54.3/glib/gthread.c:784 thread = 0x55fa6b445c00 #6 0x00007f0092e3a90a in start_thread (arg=0x7f0080b56700) at pthread_create.c:465 pd = 0x7f0080b56700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139640136099584, 3379020518807342106, 140724215055934, 140724215055935, 139640127709184, 139640136099584, -3394113046904009702, -3394143445170746342}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = #7 0x00007f0092b7233f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 No locals. Thread 1 (Thread 0x7f00936a3a80 (LWP 454)): #0 0x00007f0092e46bac in __waitpid (pid=529, stat_loc=0x0, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29 resultvar = 18446744073709551104 sc_cancel_oldtype = 0 #1 0x00007f0093121a28 in _dt_sigsegv_handler () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #2 No locals. #3 0x00007f00454deb4b in gbe::Scalarize::scalarizeInsert(llvm::InsertElementInst*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #4 0x00007f00454e1425 in gbe::Scalarize::scalarize(llvm::Instruction*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #5 0x00007f00454e17cf in gbe::Scalarize::runOnFunction(llvm::Function&) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #6 0x00007f002aaa152d in llvm::FPPassManager::runOnFunction(llvm::Function&) () from /usr/lib/llvm/5/lib64/libLLVMCore.so.5 No symbol table info available. #7 0x00007f002b11e35e in (anonymous namespace)::CGPassManager::runOnModule(llvm::Module&) () from /usr/lib/llvm/5/lib64/libLLVMAnalysis.so.5 No symbol table info available. #8 0x00007f002aaa20d6 in llvm::legacy::PassManagerImpl::run(llvm::Module&) () from /usr/lib/llvm/5/lib64/libLLVMCore.so.5 No symbol table info available. #9 0x00007f00455078dc in gbe::llvmToGen(gbe::ir::Unit&, void const*, int, bool, int, std::__cxx11::basic_string, std::allocator >&) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #10 0x00007f00454988bc in gbe::Program::buildFromLLVMModule(void const*, std::__cxx11::basic_string, std::allocator >&, int) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #11 0x00007f00455ac371 in gbe::genProgramNewFromLLVM(unsigned int, void const*, void const*, char const*, unsigned long, char*, unsigned long*, int, char const*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #12 0x00007f00454a1f2f in gbe::programNewFromSource(unsigned int, char const*, unsigned long, char const*, char*, unsigned long*) () from /usr/lib64/OpenCL/vendors/beignet/lib/beignet//libgbe.so No symbol table info available. #13 0x00007f0068595424 in cl_program_build () from /usr/lib64/libOpenCL.so No symbol table info available. #14 0x00007f006858bd37 in clBuildProgram () from /usr/lib64/libOpenCL.so No symbol table info available. #15 0x00007f009312ab2a in dt_opencl_build_program () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #16 0x00007f009312c0a3 in dt_opencl_device_init () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #17 0x00007f0093130bc7 in dt_opencl_init () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #18 0x00007f00930d1864 in dt_init () from /usr/bin/../lib64/darktable/libdarktable.so No symbol table info available. #19 0x000055fa69a1d886 in main () No symbol table info available.