Not much to see in gdb. Program was killed with signal 11 (SIGSEGV). Program terminated with signal SIGSEGV, Segmentation fault. #0 0x000000000070bf39 in __sigsuspend (set=set@entry=0x7ffe1e40bf88) at ../sysdeps/unix/sysv/linux/sigsuspend.c:26 26 ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or directory. [Current thread is 1 (Thread 0x1d03480 (LWP 21))] (gdb) bt #0 0x000000000070bf39 in __sigsuspend (set=set@entry=0x7ffe1e40bf88) at ../sysdeps/unix/sysv/linux/sigsuspend.c:26 #1 0x000000000062e16a in dump_core_and_abort (target_sig=target_sig@entry=11) at ../linux-user/signal.c:776 #2 0x000000000062e4e2 in handle_pending_signal (cpu_env=cpu_env@entry=0x1d2f8a0, sig=sig@entry=11, k=k@entry=0x1d76110) at ../linux-user/signal.c:1097 #3 0x00000000006301a5 in process_pending_signals (cpu_env=cpu_env@entry=0x1d2f8a0) at ../linux-user/signal.c:1172 #4 0x000000000040539a in cpu_loop (env=env@entry=0x1d2f8a0) at ../linux-user/aarch64/cpu_loop.c:186 #5 0x00000000004021e1 in main (argc=<optimized out>, argv=0x7ffe1e40cb48, envp=<optimized out>) at ../linux-user/main.c:918 (gdb) info threads Id Target Id Frame * 1 Thread 0x1d03480 (LWP 21) 0x000000000070bf39 in __sigsuspend (set=set@entry=0x7ffe1e40bf88) at ../sysdeps/unix/sysv/linux/sigsuspend.c:26 2 Thread 0x7efe31d436c0 (LWP 23) syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 3 Thread 0x7efe314c16c0 (LWP 24) safe_syscall_base () at ../common-user/host/x86_64/safe-syscall.inc.S:75