. Thread 2 (LWP 4665): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007f4655b79ddb in pipe_semaphore_wait (sema=0x22f5260) at ../../../../../../../src/gallium/auxiliary/os/os_thread.h:434 No locals. #2 radeon_drm_cs_emit_ioctl (param=0x22f5060) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:553 ws = 0x22f5060 cs = i = empty_stack = #3 0x00007f4665e37f6e in start_thread (arg=0x7f46565e5700) at pthread_create.c:311 __res = pd = 0x7f46565e5700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139940073461504, -1673071012104652287, 0, 36541504, 139940333885216, 18, 1604586019672275457, 1604623978038671873}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #4 0x00007f46670989cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 1 (LWP 4651): #0 0x00007f4666fd4f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 4651 selftid = 4651 #1 0x00007f4666fd85e8 in __GI_abort () at abort.c:90 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x7f466735f740 , sa_sigaction = 0x7f466735f740 }, sa_mask = {__val = {139940356030880, 45, 139940043184848, 139940043184848, 139940352590114, 45, 139940356030880, 45, 139940352592798, 45, 139940356030880, 1, 45, 44029328, 139940352548373, 44029328}}, sa_flags = 0, sa_restorer = 0x2ac9168} sigs = {__val = {32, 0 }} #2 0x00007f46548a76d5 in ?? () No symbol table info available. #3 0x0000000000000001 in ?? () No symbol table info available. #4 0x0000000100000003 in ?? () No symbol table info available. #5 0x0000000000000000 in ?? () No symbol table info available.