Hello, after moving from OpenSSL-1.0.1e to OpenSSL-1.0.2-5ff68e8 our nginx instances started crashing (very rarely, but still...) with backtraces pointing to either "sha1_block_data_order_avx" or "sha1_block_data_order_ssse3", depending on machine. This is happening when nginx is acting as a client, as well when it's acting as a server.
The OS is Linux 3.9.x and we are using relatively recent OpenSSL-1.0.2 checkout (commit: 5ff68e8f6dac3b0d8997b8bc379f9111c2bab74f). Let me know if you need any more details. Best regards, Piotr Sikora --- sha1_block_data_order_avx --- (gdb) bt #0 sha1_block_data_order_avx () at sha1-x86_64.s:3338 #1 0xca62c1d6ca62c1d6 in ?? () #2 0xca62c1d6ca62c1d6 in ?? () #3 0xca62c1d6ca62c1d6 in ?? () #4 0xca62c1d6ca62c1d6 in ?? () #5 0xca62c1d6ca62c1d6 in ?? () #6 0xca62c1d6ca62c1d6 in ?? () #7 0xca62c1d6ca62c1d6 in ?? () #8 0xca62c1d6ca62c1d6 in ?? () #9 0x0000000004533188 in ?? () #10 0x0000000000000020 in ?? () #11 0x000000000eabc170 in ?? () #12 0x000000000059903b in sha1_update (ctx=Unhandled dwarf expression opcode 0xf3) at e_aes_cbc_hmac_sha1.c:162 #13 aesni_cbc_hmac_sha1_cipher (ctx=Unhandled dwarf expression opcode 0xf3) at e_aes_cbc_hmac_sha1.c:223 #14 0x00000000005010a9 in tls1_enc (s=0x10338110, send=1) at t1_enc.c:855 #15 0x000000000052ab87 in do_ssl3_write (s=0x10338110, type=21, buf=0xd1c9e88 "\002F", len=2, create_empty_fragment=0) at s3_pkt.c:826 #16 0x000000000052c540 in ssl3_dispatch_alert (s=0x10338110) at s3_pkt.c:1500 #17 0x000000000052b54c in ssl3_send_alert (s=0x10338110, type=22, buf=0x549af40 "\024", len=4, peek=0) at s3_pkt.c:1488 #18 ssl3_get_record (s=0x10338110, type=22, buf=0x549af40 "\024", len=4, peek=0) at s3_pkt.c:536 #19 ssl3_read_bytes (s=0x10338110, type=22, buf=0x549af40 "\024", len=4, peek=0) at s3_pkt.c:1010 #20 0x000000000052cea0 in ssl3_get_message (s=0x10338110, st1=Unhandled dwarf expression opcode 0xf3) at s3_both.c:370 #21 0x000000000052c8bb in ssl3_get_finished (s=0x10338110, a=Unhandled dwarf expression opcode 0xf3) at s3_both.c:233 #22 0x000000000051f27a in ssl3_accept (s=0x10338110) at s3_srvr.c:725 #23 0x0000000000468a5b in ngx_ssl_handshake (c=0x7f457adca6d0) at src/event/ngx_event_openssl.c:1114 (gdb) info reg rax 0x753851ae 1966625198 rbx 0x21be16be 566105790 rcx 0x1bc8df34 466149172 rdx 0x6f8554d1 1871008977 rsi 0xfe447b08 4265900808 rdi 0xec908aab 3968895659 rbp 0xee05b36e 0xee05b36e rsp 0x7ffff63dd800 0x7ffff63dd800 r8 0xeabc324 246137636 r9 0x15364fcb 355880907 r10 0x453314b 72560971 r11 0x543300 5518080 r12 0x4533188 72561032 r13 0x0 0 r14 0x4533188 72561032 r15 0x45331cb 72561099 rip 0x5416c0 0x5416c0 <sha1_block_data_order_avx+2736> eflags 0x202 [ IF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 fctrl 0x37f 895 fstat 0x0 0 ftag 0xffff 65535 fiseg 0x0 0 fioff 0x0 0 foseg 0x0 0 fooff 0x0 0 fop 0x0 0 mxcsr 0x1f80 [ IM DM ZM OM UM PM ] --- sha1_block_data_order_ssse3 --- (gdb) bt #0 sha1_block_data_order_ssse3 () at sha1-x86_64.s:2226 #1 0xca62c1d6ca62c1d6 in ?? () #2 0xca62c1d6ca62c1d6 in ?? () #3 0xca62c1d6ca62c1d6 in ?? () #4 0xca62c1d6ca62c1d6 in ?? () #5 0xca62c1d6ca62c1d6 in ?? () #6 0xca62c1d6ca62c1d6 in ?? () #7 0xca62c1d6ca62c1d6 in ?? () #8 0xca62c1d6ca62c1d6 in ?? () #9 0x0000000001d17528 in ?? () #10 0x0000000000000020 in ?? () #11 0x0000000001eb35c0 in ?? () #12 0x00000000005c627b in sha1_update (ctx=Unhandled dwarf expression opcode 0xf3) at e_aes_cbc_hmac_sha1.c:162 #13 aesni_cbc_hmac_sha1_cipher (ctx=Unhandled dwarf expression opcode 0xf3) at e_aes_cbc_hmac_sha1.c:223 #14 0x000000000052e2e9 in tls1_enc (s=0x1f01200, send=1) at t1_enc.c:855 #15 0x0000000000557dc7 in do_ssl3_write (s=0x1f01200, type=21, buf=0x1e55208 "\002F", len=2, create_empty_fragment=0) at s3_pkt.c:826 #16 0x0000000000559780 in ssl3_dispatch_alert (s=0x1f01200) at s3_pkt.c:1500 #17 0x000000000055878c in ssl3_send_alert (s=0x1f01200, type=23, buf=0x2204b50 "...", len=8192, peek=0) at s3_pkt.c:1488 #18 ssl3_get_record (s=0x1f01200, type=23, buf=0x2204b50 "...", len=8192, peek=0) at s3_pkt.c:536 #19 ssl3_read_bytes (s=0x1f01200, type=23, buf=0x2204b50 "...", len=8192, peek=0) at s3_pkt.c:1010 #20 0x00000000005550dc in ssl3_read_internal (s=0x1f01200, buf=0x2204b50, len=8192) at s3_lib.c:4426 #21 ssl3_read (s=0x1f01200, buf=0x2204b50, len=8192) at s3_lib.c:4446 #22 0x000000000046d204 in ngx_ssl_recv (c=0x7f57161d6a10, buf=0x2204b50 "...", size=8192) at src/event/ngx_event_openssl.c:1356 ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager majord...@openssl.org
