[DRE-maint] Bug#696015: segfaults with IPv6

[Adam Majer]

Package: ruby-eventmachine
Version: 0.12.10-3
Severity: important
Tags: ipv6


Please forward this bug upstream. It exists in eventmachine 1.0 (from
gems) too.

Running thin listening on ipv6 address ::1 results in the following
segfault. Listening on IPv4 socket, no problems.


$ thin -a ::1 start -D
>> Using rack adapter
>> Thin web server (v1.5.0 codename Knife)
>> Debugging ON
>> Maximum connections set to 1024
>> Listening on ::1:3000, CTRL+C to stop
*** stack smashing detected ***: ruby1.9.1 terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f00feae72e7]
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x0)[0x7f00feae72b0]
/home/adamm/.gem/gems/eventmachine-1.0.0/lib/rubyeventmachine.so(_ZN18AcceptorDescriptor4ReadEv+0x1b7)[0x7f00fc9a5b27]
/home/adamm/.gem/gems/eventmachine-1.0.0/lib/rubyeventmachine.so(_ZN14EventMachine_t13_RunEpollOnceEv+0x1d1)[0x7f00fc99d621]
/home/adamm/.gem/gems/eventmachine-1.0.0/lib/rubyeventmachine.so(_ZN14EventMachine_t8_RunOnceEv+0x65)[0x7f00fc99ea85]
/home/adamm/.gem/gems/eventmachine-1.0.0/lib/rubyeventmachine.so(_ZN14EventMachine_t3RunEv+0x58)[0x7f00fc9a0458]
/home/adamm/.gem/gems/eventmachine-1.0.0/lib/rubyeventmachine.so(+0x1c9f9)[0x7f00fc9a89f9]
/usr/lib/libruby-1.9.1.so.1.9(+0x1520a3)[0x7f00ff9b50a3]
/usr/lib/libruby-1.9.1.so.1.9(+0x147f39)[0x7f00ff9aaf39]
/usr/lib/libruby-1.9.1.so.1.9(+0x14d5c4)[0x7f00ff9b05c4]
/usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval+0x160)[0x7f00ff9b7ac0]
/usr/lib/libruby-1.9.1.so.1.9(+0x609b0)[0x7f00ff8c39b0]
/usr/lib/libruby-1.9.1.so.1.9(+0x60ab9)[0x7f00ff8c3ab9]
/usr/lib/libruby-1.9.1.so.1.9(+0x1520a3)[0x7f00ff9b50a3]
/usr/lib/libruby-1.9.1.so.1.9(+0x147f39)[0x7f00ff9aaf39]
/usr/lib/libruby-1.9.1.so.1.9(+0x14d5c4)[0x7f00ff9b05c4]
/usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval_main+0xad)[0x7f00ff9b7bad]
/usr/lib/libruby-1.9.1.so.1.9(+0x5de1a)[0x7f00ff8c0e1a]
/usr/lib/libruby-1.9.1.so.1.9(ruby_exec_node+0x1d)[0x7f00ff8c18bd]
/usr/lib/libruby-1.9.1.so.1.9(ruby_run_node+0x1e)[0x7f00ff8c334e]
ruby1.9.1[0x40091b]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd)[0x7f00fea16ead]
ruby1.9.1[0x400949]


running c++filt resolves part of the trace to,

AcceptorDescriptor::Read()
EventMachine_t::_RunEpollOnce()
EventMachine_t::_RunOnce()
EventMachine_t::Run()




-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (50, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.6.7+ (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages ruby-eventmachine depends on:
ii  libc6                         2.13-36
ii  libgcc1                       1:4.7.2-4
ii  libruby1.8                    1.8.7.358-5
ii  libruby1.9.1                  1.9.3.194-3
ii  libstdc++6                    4.7.2-4
ii  ruby                          4.9
ii  ruby1.8 [ruby-interpreter]    1.8.7.358-5
ii  ruby1.9.1 [ruby-interpreter]  1.9.3.194-3

ruby-eventmachine recommends no packages.

ruby-eventmachine suggests no packages.

-- no debconf information