Invalid opcode vzeroupper Description of problem: Got many invalid opcode error with Fedora 36 See fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=2076410 Crash stack and disassemble. ``` Downloading separate debug info for /lib64/liblzma.so.5... Downloading separate debug info for /home/penghuang/Sources/system-supplied DSO at 0x7fff30f55000... [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `flatpak remote-add flathub https://flathub.org/repo/flathub.flatpakrepo'. Program terminated with signal SIGILL, Illegal instruction. #0 0x00007f89783cbe4a in sha512_block_data_order_avx2 () from /lib64/libgnutls.so.30 [Current thread is 1 (Thread 0x7f8972ada640 (LWP 5083))] (gdb) bt #0 0x00007f89783cbe4a in sha512_block_data_order_avx2 () from /lib64/libgnutls.so.30 #1 0x00007f89783bf042 in x86_sha512_update (ctx=0x7f8972ad9090, length=128, data=0x7f8972ad8f90 '\\' , "@\255") at sha-x86-ssse3.c:215 #2 0x00007f897810879b in nettle_hmac_set_key (outer=, inner=0x7f8972ad9168, state=, hash=0x7f897848b6c0 , key_length=0, key=0x7f89783ff943 "") at /usr/src/debug/nettle-3.7.3-3.fc36.x86_64/hmac.c:83 #3 0x00007f89783bce3a in wrap_x86_hmac_fast (algo=, nonce=, nonce_size=, key=0x7f89783ff943, key_size=0, text=0x7f8972ad9430, text_size=48, digest=0x55a79d80b948) at hmac-x86-ssse3.c:294 #4 0x00007f89782d4b57 in _gnutls_mac_fast (algorithm=GNUTLS_MAC_SHA384, key=0x7f89783ff943, keylen=0, text=0x7f8972ad9430, textlen=48, digest=0x55a79d80b948) at hash_int.c:167 #5 0x00007f89782f524d in gnutls_hmac_fast (algorithm=GNUTLS_MAC_SHA384, key=key@entry=0x7f89783ff943, keylen=keylen@entry=0, ptext=0x7f8972ad9430, ptext_len=ptext_len@entry=48, digest=digest@entry=0x55a79d80b948) at crypto-api.c:640 #6 0x00007f897830d2ff in _tls13_init_secret2 (prf=0x7f897848f888 , psk=, psk@entry=0x0, psk_size=48, psk_size@entry=0, out=out@entry=0x55a79d80b948) at secrets.c:59 #7 0x00007f897830d3d0 in _tls13_init_secret (session=session@entry=0x55a79d80a1c0, psk=psk@entry=0x0, psk_size=psk_size@entry=0) at secrets.c:35 #8 0x00007f89782c66c0 in read_server_hello (datalen=, data=, session=0x55a79d80a1c0) at handshake.c:2097 #9 _gnutls_recv_handshake (session=session@entry=0x55a79d80a1c0, type=type@entry=GNUTLS_HANDSHAKE_SERVER_HELLO, optional=optional@entry=0, buf=buf@entry=0x0) at handshake.c:1656 #10 0x00007f89782c8dbb in handshake_client (session=0x55a79d80a1c0) at handshake.c:3072 #11 gnutls_handshake (session=0x55a79d80a1c0) at handshake.c:2871 #12 0x00007f89784a694f in g_tls_connection_gnutls_handshake_thread_handshake (tls=0x55a79d80c250, timeout=, cancellable=, error=0x7f8972ad9b10) at ../tls/gnutls/gtlsconnection-gnutls.c:968 #13 0x00007f89784a8942 in handshake_thread (task=0x7f8968007ec0, object=object@entry=0x55a79d80c250, task_data=task_data@entry=0x55a79d766e60, cancellable=cancellable@entry=0x55a79d748760) at ../tls/base/gtlsconnection-base.c:1564 #14 0x00007f89784a8c02 in async_handshake_thread (task=, object=0x55a79d80c250, task_data=0x55a79d766e60, cancellable=0x55a79d748760) at ../tls/base/gtlsconnection-base.c:1848 #15 0x00007f89882dbaf3 in g_task_thread_pool_thread (thread_data=0x7f8968007ec0, pool_data=) at ../gio/gtask.c:1441 #16 0x00007f8988111b72 in g_thread_pool_thread_proxy (data=) at ../glib/gthreadpool.c:354 #17 0x00007f898810f172 in g_thread_proxy (data=0x55a79d7e1360) at ../glib/gthread.c:827 #18 0x00007f8987efdcc7 in start_thread (arg=) at pthread_create.c:442 #19 0x00007f8987f82e00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81 (gdb) (gdb) disassemble Dump of assembler code for function sha512_block_data_order_avx2: 0x00007f89783cbe00 <+0>: mov %rsp,%rax 0x00007f89783cbe03 <+3>: push %rbx 0x00007f89783cbe04 <+4>: push %rbp 0x00007f89783cbe05 <+5>: push %r12 0x00007f89783cbe07 <+7>: push %r13 0x00007f89783cbe09 <+9>: push %r14 0x00007f89783cbe0b <+11>: push %r15 0x00007f89783cbe0d <+13>: sub $0x520,%rsp 0x00007f89783cbe14 <+20>: shl $0x4,%rdx 0x00007f89783cbe18 <+24>: and $0xfffffffffffff800,%rsp 0x00007f89783cbe1f <+31>: lea (%rsi,%rdx,8),%rdx 0x00007f89783cbe23 <+35>: add $0x480,%rsp 0x00007f89783cbe2a <+42>: mov %rdi,0x80(%rsp) 0x00007f89783cbe32 <+50>: mov %rsi,0x88(%rsp) 0x00007f89783cbe3a <+58>: mov %rdx,0x90(%rsp) 0x00007f89783cbe42 <+66>: mov %rax,0x98(%rsp) => 0x00007f89783cbe4a <+74>: vzeroupper 0x00007f89783cbe4d <+77>: sub $0xffffffffffffff80,%rsi 0x00007f89783cbe51 <+81>: mov (%rdi),%rax 0x00007f89783cbe54 <+84>: mov %rsi,%r12 0x00007f89783cbe57 <+87>: mov 0x8(%rdi),%rbx 0x00007f89783cbe5b <+91>: cmp %rdx,%rsi 0x00007f89783cbe5e <+94>: mov 0x10(%rdi),%rcx 0x00007f89783cbe62 <+98>: cmove %rsp,%r12 0x00007f89783cbe66 <+102>: mov 0x18(%rdi),%rdx 0x00007f89783cbe6a <+106>: mov 0x20(%rdi),%r8 0x00007f89783cbe6e <+110>: mov 0x28(%rdi),%r9 0x00007f89783cbe72 <+114>: mov 0x30(%rdi),%r10 0x00007f89783cbe76 <+118>: mov 0x38(%rdi),%r11 0x00007f89783cbe7a <+122>: jmp 0x7f89783cbe80 0x00007f89783cbe7c <+124>: nopl 0x0(%rax) ```