﻿id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
222	nginx segfaults on start	semenko	somebody	"I've been having a semi-reproducable issue with nginx segfaulting at start.

This happens with reasonable frequency right after boot on an Amazon AWS EC2 t1.micro instance, running Ubuntu 12.04.1 LTS:

[  550.264652] Process nginx (pid: 11293, threadinfo ffff88002337e000, task ffff8800232e44a0)
[  550.264656] Stack:
[  550.264661]  ffff88002337fe68 00007fffd1225538 ffff8800232e44a0 000000018107b1ec
[  550.264670]  ffff8800232e48f0 0000000000000001 ffff88002337fee8 0000000000000001
[  550.264678]  0000000000000001 00000000025e99d0 ffff88002337fe18 ffffffff8101362d
[  550.264686] Call Trace:
[  550.264692]  [<ffffffff8101362d>] setup_rt_frame+0x9d/0xc0
[  550.264697]  [<ffffffff810136c1>] handle_signal+0x71/0x190
[  550.264703]  [<ffffffff810138a6>] do_signal+0xc6/0x130
[  550.264710]  [<ffffffff8165311a>] ? error_exit+0x2a/0x60
[  550.264715]  [<ffffffff81652c3c>] ? retint_restore_args+0x5/0x6
[  550.264722]  [<ffffffff8131464d>] ? __put_user_4+0x1d/0x30
[  550.264728]  [<ffffffff81013ad5>] do_notify_resume+0x65/0x80
[  550.264735]  [<ffffffff8105ea6c>] ? schedule_tail+0x5c/0xb0
[  550.264741]  [<ffffffff8165b010>] int_signal+0x12/0x17
[  550.264745] Code: ff 0f 85 3a 02 00 00 f6 43 08 04 0f 85 05 02 00 00 65 48 8b 04 25 c8 c4 00 00 44 8b 80 88 e0 ff ff c7 80 88 e0 ff ff 00 00 00 00 <48> 8b 05 b8 67 cc 00 a9 00 00 00 04 0f 85 89 01 00 00 49 c7 45 
[  550.264801] RIP  [<ffffffff81013365>] __setup_rt_frame+0x105/0x330
[  550.264807]  RSP <ffff88002337fda8>
[  550.264811] ---[ end trace fd7fffe51de1b4c9 ]---
[  555.642115] alignment check: 0000 [#2] SMP 
[  555.642135] CPU 0 
[  555.642137] Modules linked in: tcp_htcp isofs acpiphp
[  555.642146] 
[  555.642150] Pid: 11318, comm: nginx Tainted: G      D      3.2.0-29-virtual #46-Ubuntu  
[  555.642158] RIP: e030:[<ffffffff81013365>]  [<ffffffff81013365>] __setup_rt_frame+0x105/0x330
[  555.642171] RSP: e02b:ffff880002887da8  EFLAGS: 00050246
[  555.642176] RAX: ffff880002887fd8 RBX: ffff880002887ee8 RCX: ffff8800232e0000
[  555.642236] RDX: ffff880002887e68 RSI: ffff880002887fd8 RDI: 0000000000000000
[  555.642244] RBP: ffff880002887df8 R08: 0000000000000000 R09: ffff8800232e0568
[  555.642249] R10: 0000000000000001 R11: 0000000000000246 R12: ffff8800232e0558
[  555.642254] R13: 00007fff93462f38 R14: ffff880002887f58 R15: 00007fff93463100
[  555.642263] FS:  00007f75f95cb700(0000) GS:ffff880026400000(0000) knlGS:0000000000000000
[  555.642269] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[  555.642273] CR2: 00007fff93463100 CR3: 00000000232d5000 CR4: 0000000000002620
[  555.642279] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  555.642292] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000000
[  555.642299] Process nginx (pid: 11318, threadinfo ffff880002886000, task ffff8800232e0000)
[  555.642304] Stack:
[  555.642307]  ffff880002887e68 00007fff93462f38 ffff8800232e0000 000000018107b1ec
[  555.642324]  ffff8800232e0450 0000000000000001 ffff880002887ee8 0000000000000001
[  555.642332]  0000000000000001 0000000001efa9d0 ffff880002887e18 ffffffff8101362d
[  555.642341] Call Trace:
[  555.642360]  [<ffffffff8101362d>] setup_rt_frame+0x9d/0xc0
[  555.642368]  [<ffffffff810136c1>] handle_signal+0x71/0x190
[  555.642373]  [<ffffffff810138a6>] do_signal+0xc6/0x130
[  555.642380]  [<ffffffff8165311a>] ? error_exit+0x2a/0x60
[  555.642386]  [<ffffffff81652c3c>] ? retint_restore_args+0x5/0x6
[  555.642401]  [<ffffffff8131464d>] ? __put_user_4+0x1d/0x30
[  555.642407]  [<ffffffff81013ad5>] do_notify_resume+0x65/0x80
[  555.642417]  [<ffffffff8105ea6c>] ? schedule_tail+0x5c/0xb0
[  555.642433]  [<ffffffff8165b010>] int_signal+0x12/0x17
[  555.642438] Code: ff 0f 85 3a 02 00 00 f6 43 08 04 0f 85 05 02 00 00 65 48 8b 04 25 c8 c4 00 00 44 8b 80 88 e0 ff ff c7 80 88 e0 ff ff 00 00 00 00 <48> 8b 05 b8 67 cc 00 a9 00 00 00 04 0f 85 89 01 00 00 49 c7 45 
[  555.642584] RIP  [<ffffffff81013365>] __setup_rt_frame+0x105/0x330
[  555.642592]  RSP <ffff880002887da8>
[  555.642597] ---[ end trace fd7fffe51de1b4ca ]---
"	defect	closed	major		nginx-core	1.1.x	invalid	segfault, crash		Linux ip-10-160-45-203 3.2.0-29-virtual #46-Ubuntu SMP Fri Jul 27 17:23:50 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.1.19
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_realip_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-sha1=/usr/include/openssl --with-md5=/usr/include/openssl --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.1.19/debian/modules/nginx-dav-ext-module"
