Ruby 1.9.3 stack trace - rb_fd_set

gistfile1.txt

*** buffer overflow detected ***: /usr/bin/ruby1.9.1 terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7fa0b8b12007]
/lib/x86_64-linux-gnu/libc.so.6(+0x107f00)[0x7fa0b8b10f00]
/lib/x86_64-linux-gnu/libc.so.6(+0x108fbe)[0x7fa0b8b11fbe]
/usr/lib/libruby-1.9.1.so.1.9(rb_fd_set+0x20)[0x7fa0b8f29230]
/usr/lib/libruby-1.9.1.so.1.9(+0x7fcae)[0x7fa0b8e45cae]
/usr/lib/libruby-1.9.1.so.1.9(rb_ensure+0xbb)[0x7fa0b8e291bb]
/usr/lib/libruby-1.9.1.so.1.9(+0x7d467)[0x7fa0b8e43467]
/usr/lib/libruby-1.9.1.so.1.9(+0x157d91)[0x7fa0b8f1dd91]
/usr/lib/libruby-1.9.1.so.1.9(+0x14eba2)[0x7fa0b8f14ba2]
/usr/lib/libruby-1.9.1.so.1.9(+0x1545ed)[0x7fa0b8f1a5ed]
/usr/lib/libruby-1.9.1.so.1.9(rb_yield+0x26e)[0x7fa0b8f2035e]
/usr/lib/libruby-1.9.1.so.1.9(rb_ary_each+0x52)[0x7fa0b8df7902]
/usr/lib/libruby-1.9.1.so.1.9(+0x157d91)[0x7fa0b8f1dd91]
/usr/lib/libruby-1.9.1.so.1.9(+0x14eba2)[0x7fa0b8f14ba2]
/usr/lib/libruby-1.9.1.so.1.9(+0x1545ed)[0x7fa0b8f1a5ed]
/usr/lib/libruby-1.9.1.so.1.9(rb_vm_invoke_proc+0x362)[0x7fa0b8f1b332]
/usr/lib/libruby-1.9.1.so.1.9(+0x157d91)[0x7fa0b8f1dd91]
/usr/lib/libruby-1.9.1.so.1.9(+0x14eba2)[0x7fa0b8f14ba2]
/usr/lib/libruby-1.9.1.so.1.9(+0x1545ed)[0x7fa0b8f1a5ed]
/usr/lib/libruby-1.9.1.so.1.9(+0x15937b)[0x7fa0b8f1f37b]
/usr/lib/libruby-1.9.1.so.1.9(rb_rescue2+0x16b)[0x7fa0b8e28d5b]
/usr/lib/libruby-1.9.1.so.1.9(+0x14b75e)[0x7fa0b8f1175e]
/usr/lib/libruby-1.9.1.so.1.9(+0x157d91)[0x7fa0b8f1dd91]
/usr/lib/libruby-1.9.1.so.1.9(+0x14eba2)[0x7fa0b8f14ba2]
/usr/lib/libruby-1.9.1.so.1.9(+0x1545ed)[0x7fa0b8f1a5ed]
/usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval+0x168)[0x7fa0b8f21768]
/usr/lib/libruby-1.9.1.so.1.9(+0x64d35)[0x7fa0b8e2ad35]
/usr/lib/libruby-1.9.1.so.1.9(+0x64e98)[0x7fa0b8e2ae98]
/usr/lib/libruby-1.9.1.so.1.9(+0x157d91)[0x7fa0b8f1dd91]
/usr/lib/libruby-1.9.1.so.1.9(+0x14eba2)[0x7fa0b8f14ba2]
/usr/lib/libruby-1.9.1.so.1.9(+0x1545ed)[0x7fa0b8f1a5ed]
/usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval_main+0xb2)[0x7fa0b8f21862]
/usr/lib/libruby-1.9.1.so.1.9(+0x61e22)[0x7fa0b8e27e22]
/usr/lib/libruby-1.9.1.so.1.9(ruby_exec_node+0x1d)[0x7fa0b8e2890d]
/usr/lib/libruby-1.9.1.so.1.9(ruby_run_node+0x1e)[0x7fa0b8e2a4be]
/usr/bin/ruby1.9.1(main+0x4b)[0x4007fb]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fa0b8a2a76d]
/usr/bin/ruby1.9.1[0x400829]
======= Memory map: ========
00400000-00401000 r-xp 00000000 08:01 938784                             /usr/bin/ruby1.9.1
00600000-00601000 r--p 00000000 08:01 938784                             /usr/bin/ruby1.9.1
00601000-00602000 rw-p 00001000 08:01 938784                             /usr/bin/ruby1.9.1
022cf000-04572000 rw-p 00000000 00:00 0                                  [heap]
7fa0b3002000-7fa0b3017000 r-xp 00000000 08:01 655407                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7fa0b3017000-7fa0b3216000 ---p 00015000 08:01 655407                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7fa0b3216000-7fa0b3217000 r--p 00014000 08:01 655407                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7fa0b3217000-7fa0b3218000 rw-p 00015000 08:01 655407                     /lib/x86_64-linux-gnu/libgcc_s.so.1
7fa0b3218000-7fa0b3230000 r-xp 00000000 08:01 655388                     /lib/x86_64-linux-gnu/libresolv-2.15.so
7fa0b3230000-7fa0b3430000 ---p 00018000 08:01 655388                     /lib/x86_64-linux-gnu/libresolv-2.15.so
7fa0b3430000-7fa0b3431000 r--p 00018000 08:01 655388                     /lib/x86_64-linux-gnu/libresolv-2.15.so
7fa0b3431000-7fa0b3432000 rw-p 00019000 08:01 655388                     /lib/x86_64-linux-gnu/libresolv-2.15.so
7fa0b3432000-7fa0b3434000 rw-p 00000000 00:00 0 
7fa0b3434000-7fa0b343b000 r-xp 00000000 08:01 655400                     /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fa0b343b000-7fa0b363a000 ---p 00007000 08:01 655400                     /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fa0b363a000-7fa0b363b000 r--p 00006000 08:01 655400                     /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fa0b363b000-7fa0b363c000 rw-p 00007000 08:01 655400                     /lib/x86_64-linux-gnu/libnss_dns-2.15.so
7fa0b363c000-7fa0b363e000 r-xp 00000000 08:01 668589                     /lib/libnss_mdns4_minimal.so.2
7fa0b363e000-7fa0b383d000 ---p 00002000 08:01 668589                     /lib/libnss_mdns4_minimal.so.2
7fa0b383d000-7fa0b383e000 r--p 00001000 08:01 668589                     /lib/libnss_mdns4_minimal.so.2
7fa0b383e000-7fa0b383f000 rw-p 00002000 08:01 668589                     /lib/libnss_mdns4_minimal.so.2
7fa0b383f000-7fa0b384b000 r-xp 00000000 08:01 655394                     /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fa0b384b000-7fa0b3a4a000 ---p 0000c000 08:01 655394                     /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fa0b3a4a000-7fa0b3a4b000 r--p 0000b000 08:01 655394                     /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fa0b3a4b000-7fa0b3a4c000 rw-p 0000c000 08:01 655394                     /lib/x86_64-linux-gnu/libnss_files-2.15.so
7fa0b3a4c000-7fa0b3a56000 r-xp 00000000 08:01 655395                     /lib/x86_64-linux-gnu/libnss_nis-2.15.so
7fa0b3a56000-7fa0b3c56000 ---p 0000a000 08:01 655395                     /lib/x86_64-linux-gnu/libnss_nis-2.15.so
7fa0b3c56000-7fa0b3c57000 r--p 0000a000 08:01 655395                     /lib/x86_64-linux-gnu/libnss_nis-2.15.so
7fa0b3c57000-7fa0b3c58000 rw-p 0000b000 08:01 655395                     /lib/x86_64-linux-gnu/libnss_nis-2.15.so
7fa0b3c58000-7fa0b3c6f000 r-xp 00000000 08:01 655389                     /lib/x86_64-linux-gnu/libnsl-2.15.so
7fa0b3c6f000-7fa0b3e6e000 ---p 00017000 08:01 655389                     /lib/x86_64-linux-gnu/libnsl-2.15.so
7fa0b3e6e000-7fa0b3e6f000 r--p 00016000 08:01 655389                     /lib/x86_64-linux-gnu/libnsl-2.15.so
7fa0b3e6f000-7fa0b3e70000 rw-p 00017000 08:01 655389                     /lib/x86_64-linux-gnu/libnsl-2.15.so
7fa0b3e70000-7fa0b3e72000 rw-p 00000000 00:00 0 
7fa0b3e72000-7fa0b3e7a000 r-xp 00000000 08:01 655397                     /lib/x86_64-linux-gnu/libnss_compat-2.15.so
7fa0b3e7a000-7fa0b4079000 ---p 00008000 08:01 655397                     /lib/x86_64-linux-gnu/libnss_compat-2.15.so
7fa0b4079000-7fa0b407a000 r--p 00007000 08:01 655397                     /lib/x86_64-linux-gnu/libnss_compat-2.15.so
7fa0b407a000-7fa0b407b000 rw-p 00008000 08:01 655397                     /lib/x86_64-linux-gnu/libnss_compat-2.15.so
7fa0b407b000-7fa0b4081000 r-xp 00000000 08:01 531456                     /usr/lib/ruby/1.9.1/x86_64-linux/pathname.so
7fa0b4081000-7fa0b4280000 ---p 00006000 08:01 531456                     /usr/lib/ruby/1.9.1/x86_64-linux/pathname.so
7fa0b4280000-7fa0b4281000 r--p 00005000 08:01 531456                     /usr/lib/ruby/1.9.1/x86_64-linux/pathname.so
7fa0b4281000-7fa0b4282000 rw-p 00006000 08:01 531456                     /usr/lib/ruby/1.9.1/x86_64-linux/pathname.so
7fa0b4282000-7fa0b4284000 r-xp 00000000 08:01 531540                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/iso_8859_1.so
7fa0b4284000-7fa0b4483000 ---p 00002000 08:01 531540                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/iso_8859_1.so
7fa0b4483000-7fa0b4484000 r--p 00001000 08:01 531540                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/iso_8859_1.so
7fa0b4484000-7fa0b4485000 rw-p 00002000 08:01 531540                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/iso_8859_1.so
7fa0b4485000-7fa0b448a000 r-xp 00000000 08:01 531469                     /usr/lib/ruby/1.9.1/x86_64-linux/strscan.so
7fa0b448a000-7fa0b4689000 ---p 00005000 08:01 531469                     /usr/lib/ruby/1.9.1/x86_64-linux/strscan.so
7fa0b4689000-7fa0b468a000 r--p 00004000 08:01 531469                     /usr/lib/ruby/1.9.1/x86_64-linux/strscan.so
7fa0b468a000-7fa0b468b000 rw-p 00005000 08:01 531469                     /usr/lib/ruby/1.9.1/x86_64-linux/strscan.so
7fa0b468b000-7fa0b46ab000 r-xp 00000000 08:01 938736                     /usr/lib/x86_64-linux-gnu/libyaml-0.so.2.0.2
7fa0b46ab000-7fa0b48aa000 ---p 00020000 08:01 938736                     /usr/lib/x86_64-linux-gnu/libyaml-0.so.2.0.2
7fa0b48aa000-7fa0b48ab000 r--p 0001f000 08:01 938736                     /usr/lib/x86_64-linux-gnu/libyaml-0.so.2.0.2
7fa0b48ab000-7fa0b48ac000 rw-p 00020000 08:01 938736                     /usr/lib/x86_64-linux-gnu/libyaml-0.so.2.0.2
7fa0b48ac000-7fa0b48b2000 r-xp 00000000 08:01 531473                     /usr/lib/ruby/1.9.1/x86_64-linux/psych.so
7fa0b48b2000-7fa0b4ab1000 ---p 00006000 08:01 531473                     /usr/lib/ruby/1.9.1/x86_64-linux/psych.so
7fa0b4ab1000-7fa0b4ab2000 r--p 00005000 08:01 531473                     /usr/lib/ruby/1.9.1/x86_64-linux/psych.so
7fa0b4ab2000-7fa0b4ab3000 rw-p 00006000 08:01 531473                     /usr/lib/ruby/1.9.1/x86_64-linux/psych.so
7fa0b4ab3000-7fa0b4ab5000 r-xp 00000000 08:01 531452                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/md5.so
7fa0b4ab5000-7fa0b4cb4000 ---p 00002000 08:01 531452                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/md5.so
7fa0b4cb4000-7fa0b4cb5000 r--p 00001000 08:01 531452                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/md5.so
7fa0b4cb5000-7fa0b4cb6000 rw-p 00002000 08:01 531452                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/md5.so
7fa0b4cb6000-7fa0b4cb7000 r-xp 00000000 08:01 531450                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha2.so
7fa0b4cb7000-7fa0b4eb7000 ---p 00001000 08:01 531450                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha2.so
7fa0b4eb7000-7fa0b4eb8000 r--p 00001000 08:01 531450                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha2.so
7fa0b4eb8000-7fa0b4eb9000 rw-p 00002000 08:01 531450                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha2.so
7fa0b4eb9000-7fa0b4ebc000 r-xp 00000000 08:01 531448                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha1.so
7fa0b4ebc000-7fa0b50bb000 ---p 00003000 08:01 531448                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha1.so
7fa0b50bb000-7fa0b50bc000 r--p 00002000 08:01 531448                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha1.so
7fa0b50bc000-7fa0b50bd000 rw-p 00003000 08:01 531448                     /usr/lib/ruby/1.9.1/x86_64-linux/digest/sha1.so
7fa0b50bd000-7fa0b50c0000 r-xp 00000000 08:01 531465                     /usr/lib/ruby/1.9.1/x86_64-linux/etc.so
7fa0b50c0000-7fa0b52bf000 ---p 00003000 08:01 531465                     /usr/lib/ruby/1.9.1/x86_64-linux/etc.so
7fa0b52bf000-7fa0b52c0000 r--p 00002000 08:01 531465                     /usr/lib/ruby/1.9.1/x86_64-linux/etc.so
7fa0b52c0000-7fa0b52c1000 rw-p 00003000 08:01 531465                     /usr/lib/ruby/1.9.1/x86_64-linux/etc.so
7fa0b52c1000-7fa0b52cc000 r-xp 00000000 08:01 789855                     /var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/yajl.so
7fa0b52cc000-7fa0b54cb000 ---p 0000b000 08:01 789855                     /var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/yajl.so
7fa0b54cb000-7fa0b54cc000 r--p 0000a000 08:01 789855                     /var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/yajl.so
7fa0b54cc000-7fa0b54cd000 rw-p 0000b000 08:01 789855                     /var/lib/gems/1.9.1/gems/yajl-ruby-1.1.0/lib/yajl/yajl.so
7fa0b54cd000-7fa0b54d6000 r-xp 00000000 08:01 790526                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/generator.so
7fa0b54d6000-7fa0b56d5000 ---p 00009000 08:01 790526                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/generator.so
7fa0b56d5000-7fa0b56d6000 r--p 00008000 08:01 790526                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/generator.so
7fa0b56d6000-7fa0b56d7000 rw-p 00009000 08:01 790526                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/generator.so
7fa0b56d7000-7fa0b56d8000 r-xp 00000000 08:01 531536                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32le.so
7fa0b56d8000-7fa0b58d7000 ---p 00001000 08:01 531536                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32le.so
7fa0b58d7000-7fa0b58d8000 r--p 00000000 08:01 531536                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32le.so
7fa0b58d8000-7fa0b58d9000 rw-p 00001000 08:01 531536                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32le.so
7fa0b58d9000-7fa0b58da000 r-xp 00000000 08:01 531500                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32be.so
7fa0b58da000-7fa0b5ad9000 ---p 00001000 08:01 531500                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32be.so
7fa0b5ad9000-7fa0b5ada000 r--p 00000000 08:01 531500                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32be.so
7fa0b5ada000-7fa0b5adb000 rw-p 00001000 08:01 531500                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_32be.so
7fa0b5adb000-7fa0b5adc000 r-xp 00000000 08:01 531497                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16le.so
7fa0b5adc000-7fa0b5cdb000 ---p 00001000 08:01 531497                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16le.so
7fa0b5cdb000-7fa0b5cdc000 r--p 00000000 08:01 531497                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16le.so
7fa0b5cdc000-7fa0b5cdd000 rw-p 00001000 08:01 531497                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16le.so
7fa0b5cdd000-7fa0b5cde000 r-xp 00000000 08:01 531541                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16be.so
7fa0b5cde000-7fa0b5edd000 ---p 00001000 08:01 531541                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16be.so
7fa0b5edd000-7fa0b5ede000 r--p 00000000 08:01 531541                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16be.so
7fa0b5ede000-7fa0b5edf000 rw-p 00001000 08:01 531541                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/utf_16be.so
7fa0b5edf000-7fa0b5ee4000 r-xp 00000000 08:01 790521                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/parser.so
7fa0b5ee4000-7fa0b60e4000 ---p 00005000 08:01 790521                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/parser.so
7fa0b60e4000-7fa0b60e5000 r--p 00005000 08:01 790521                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/parser.so
7fa0b60e5000-7fa0b60e6000 rw-p 00006000 08:01 790521                     /var/lib/gems/1.9.1/gems/json-1.6.1/ext/json/ext/json/ext/parser.so
7fa0b60e6000-7fa0b60e7000 r-xp 00000000 08:01 531482                     /usr/lib/ruby/1.9.1/x86_64-linux/fcntl.so
7fa0b60e7000-7fa0b62e6000 ---p 00001000 08:01 531482                     /usr/lib/ruby/1.9.1/x86_64-linux/fcntl.so
7fa0b62e6000-7fa0b62e7000 r--p 00000000 08:01 531482                     /usr/lib/ruby/1.9.1/x86_64-linux/fcntl.so
7fa0b62e7000-7fa0b62e8000 rw-p 00001000 08:01 531482                     /usr/lib/ruby/1.9.1/x86_64-linux/fcntl.so
7fa0b62e8000-7fa0b62eb000 r-xp 00000000 08:01 531463                     /usr/lib/ruby/1.9.1/x86_64-linux/digest.so
7fa0b62eb000-7fa0b64ea000 ---p 00003000 08:01 531463                     /usr/lib/ruby/1.9.1/x86_64-linux/digest.so
7fa0b64ea000-7fa0b64eb000 r--p 00002000 08:01 531463                     /usr/lib/ruby/1.9.1/x86_64-linux/digest.so
7fa0b64eb000-7fa0b64ec000 rw-p 00003000 08:01 531463                     /usr/lib/ruby/1.9.1/x86_64-linux/digest.so
7fa0b64ec000-7fa0b668b000 r-xp 00000000 08:01 655648                     /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
7fa0b668b000-7fa0b688a000 ---p 0019f000 08:01 655648                     /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
7fa0b688a000-7fa0b68a5000 r--p 0019e000 08:01 655648                     /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
7fa0b68a5000-7fa0b68b0000 rw-p 001b9000 08:01 655648                     /lib/x86_64-linux-gnu/libcrypto.so.1.0.0
7fa0b68b0000-7fa0b68b4000 rw-p 00000000 00:00 0 
7fa0b68b4000-7fa0b6906000 r-xp 00000000 08:01 655646                     /lib/x86_64-linux-gnu/libssl.so.1.0.0
7fa0b6906000-7fa0b6b06000 ---p 00052000 08:01 655646                     /lib/x86_64-linux-gnu/libssl.so.1.0.0
7fa0b6b06000-7fa0b6b09000 r--p 00052000 08:01 655646                     /lib/x86_64-linux-gnu/libssl.so.1.0.0
7fa0b6b09000-7fa0b6b0f000 rw-p 00055000 08:01 655646                     /lib/x86_64-linux-gnu/libssl.so.1.0.0
7fa0b6b0f000-7fa0b6b10000 rw-p 00000000 00:00 0 
7fa0b6b10000-7fa0b6b5a000 r-xp 00000000 08:01 531487                     /usr/lib/ruby/1.9.1/x86_64-linux/openssl.so
7fa0b6b5a000-7fa0b6d5a000 ---p 0004a000 08:01 531487                     /usr/lib/ruby/1.9.1/x86_64-linux/openssl.so
7fa0b6d5a000-7fa0b6d5b000 r--p 0004a000 08:01 531487                     /usr/lib/ruby/1.9.1/x86_64-linux/openssl.so
7fa0b6d5b000-7fa0b6d5d000 rw-p 0004b000 08:01 531487                     /usr/lib/ruby/1.9.1/x86_64-linux/openssl.so
7fa0b6d5d000-7fa0b6d5e000 rw-p 00000000 00:00 0 
7fa0b6d5e000-7fa0b6d64000 r-xp 00000000 08:01 531489                     /usr/lib/ruby/1.9.1/x86_64-linux/stringio.so
7fa0b6d64000-7fa0b6f63000 ---p 00006000 08:01 531489                     /usr/lib/ruby/1.9.1/x86_64-linux/stringio.so
7fa0b6f63000-7fa0b6f64000 r--p 00005000 08:01 531489                     /usr/lib/ruby/1.9.1/x86_64-linux/stringio.so
7fa0b6f64000-7fa0b6f65000 rw-p 00006000 08:01 531489                     /usr/lib/ruby/1.9.1/x86_64-linux/stringio.so
7fa0b6f65000-7fa0b6f87000 r-xp 00000000 08:01 531460                     /usr/lib/ruby/1.9.1/x86_64-linux/socket.so
7fa0b6f87000-7fa0b7186000 ---p 00022000 08:01 531460                     /usr/lib/ruby/1.9.1/x86_64-linux/socket.so
7fa0b7186000-7fa0b7187000 r--p 00021000 08:01 531460                     /usr/lib/ruby/1.9.1/x86_64-linux/socket.so
7fa0b7187000-7fa0b7188000 rw-p 00022000 08:01 531460                     /usr/lib/ruby/1.9.1/x86_64-linux/socket.so
7fa0b7188000-7fa0b719e000 r-xp 00000000 08:01 655591                     /lib/x86_64-linux-gnu/libz.so.1.2.3.4
7fa0b719e000-7fa0b739d000 ---p 00016000 08:01 655591                     /lib/x86_64-linux-gnu/libz.so.1.2.3.4
7fa0b739d000-7fa0b739e000 r--p 00015000 08:01 655591                     /lib/x86_64-linux-gnu/libz.so.1.2.3.4
7fa0b739e000-7fa0b739f000 rw-p 00016000 08:01 655591                     /lib/x86_64-linux-gnu/libz.so.1.2.3.4
7fa0b739f000-7fa0b73ab000 r-xp 00000000 08:01 531466                     /usr/lib/ruby/1.9.1/x86_64-linux/zlib.so
7fa0b73ab000-7fa0b75aa000 ---p 0000c000 08:01 531466                     /usr/lib/ruby/1.9.1/x86_64-linux/zlib.so
7fa0b75aa000-7fa0b75ab000 r--p 0000b000 08:01 531466                     /usr/lib/ruby/1.9.1/x86_64-linux/zlib.so
7fa0b75ab000-7fa0b75ac000 rw-p 0000c000 08:01 531466                     /usr/lib/ruby/1.9.1/x86_64-linux/zlib.so
7fa0b75ac000-7fa0b75da000 r-xp 00000000 08:01 531477                     /usr/lib/ruby/1.9.1/x86_64-linux/date_core.so
7fa0b75da000-7fa0b77da000 ---p 0002e000 08:01 531477                     /usr/lib/ruby/1.9.1/x86_64-linux/date_core.so
7fa0b77da000-7fa0b77db000 r--p 0002e000 08:01 531477                     /usr/lib/ruby/1.9.1/x86_64-linux/date_core.so
7fa0b77db000-7fa0b77dc000 rw-p 0002f000 08:01 531477                     /usr/lib/ruby/1.9.1/x86_64-linux/date_core.so
7fa0b77dc000-7fa0b77dd000 rw-p 00000000 00:00 0 
7fa0b77dd000-7fa0b77df000 r-xp 00000000 08:01 531513                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/trans/transdb.so
7fa0b77df000-7fa0b79df000 ---p 00002000 08:01 531513                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/trans/transdb.so
7fa0b79df000-7fa0b79e0000 r--p 00002000 08:01 531513                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/trans/transdb.so
7fa0b79e0000-7fa0b79e1000 rw-p 00003000 08:01 531513                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/trans/transdb.so
7fa0b79e1000-7fa0b79e3000 r-xp 00000000 08:01 531499                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/encdb.so
7fa0b79e3000-7fa0b7be2000 ---p 00002000 08:01 531499                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/encdb.so
7fa0b7be2000-7fa0b7be3000 r--p 00001000 08:01 531499                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/encdb.so
7fa0b7be3000-7fa0b7be4000 rw-p 00002000 08:01 531499                     /usr/lib/ruby/1.9.1/x86_64-linux/enc/encdb.so
7fa0b7be4000-7fa0b7ead000 r--p 00000000 08:01 923754                     /usr/lib/locale/locale-archive
7fa0b7ead000-7fa0b7fa6000 r-xp 00000000 08:01 655380                     /lib/x86_64-linux-gnu/libm-2.15.so
7fa0b7fa6000-7fa0b81a5000 ---p 000f9000 08:01 655380                     /lib/x86_64-linux-gnu/libm-2.15.so
7fa0b81a5000-7fa0b81a6000 r--p 000f8000 08:01 655380                     /lib/x86_64-linux-gnu/libm-2.15.so
7fa0b81a6000-7fa0b81a7000 rw-p 000f9000 08:01 655380                     /lib/x86_64-linux-gnu/libm-2.15.so
7fa0b81a7000-7fa0b81b0000 r-xp 00000000 08:01 655396                     /lib/x86_64-linux-gnu/libcrypt-2.15.so
7fa0b81b0000-7fa0b83b0000 ---p 00009000 08:01 655396                     /lib/x86_64-linux-gnu/libcrypt-2.15.so
7fa0b83b0000-7fa0b83b1000 r--p 00009000 08:01 655396                     /lib/x86_64-linux-gnu/libcrypt-2.15.so
7fa0b83b1000-7fa0b83b2000 rw-p 0000a000 08:01 655396                     /lib/x86_64-linux-gnu/libcrypt-2.15.so
7fa0b83b2000-7fa0b83e0000 rw-p 00000000 00:00 0 
7fa0b83e0000-7fa0b83e2000 r-xp 00000000 08:01 655401                     /lib/x86_64-linux-gnu/libdl-2.15.so
7fa0b83e2000-7fa0b85e2000 ---p 00002000 08:01 655401                     /lib/x86_64-linux-gnu/libdl-2.15.so
7fa0b85e2000-7fa0b85e3000 r--p 00002000 08:01 655401                     /lib/x86_64-linux-gnu/libdl-2.15.so
7fa0b85e3000-7fa0b85e4000 rw-p 00003000 08:01 655401                     /lib/x86_64-linux-gnu/libdl-2.15.so
7fa0b85e4000-7fa0b85eb000 r-xp 00000000 08:01 655391                     /lib/x86_64-linux-gnu/librt-2.15.so
7fa0b85eb000-7fa0b87ea000 ---p 00007000 08:01 655391                     /lib/x86_64-linux-gnu/librt-2.15.so
7fa0b87ea000-7fa0b87eb000 r--p 00006000 08:01 655391                     /lib/x86_64-linux-gnu/librt-2.15.so
7fa0b87eb000-7fa0b87ec000 rw-p 00007000 08:01 655391                     /lib/x86_64-linux-gnu/librt-2.15.so
7fa0b87ec000-7fa0b8804000 r-xp 00000000 08:01 655405                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7fa0b8804000-7fa0b8a03000 ---p 00018000 08:01 655405                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7fa0b8a03000-7fa0b8a04000 r--p 00017000 08:01 655405                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7fa0b8a04000-7fa0b8a05000 rw-p 00018000 08:01 655405                     /lib/x86_64-linux-gnu/libpthread-2.15.so
7fa0b8a05000-7fa0b8a09000 rw-p 00000000 00:00 0 
7fa0b8a09000-7fa0b8bbc000 r-xp 00000000 08:01 655381                     /lib/x86_64-linux-gnu/libc-2.15.so
7fa0b8bbc000-7fa0b8dbb000 ---p 001b3000 08:01 655381                     /lib/x86_64-linux-gnu/libc-2.15.so
7fa0b8dbb000-7fa0b8dbf000 r--p 001b2000 08:01 655381                     /lib/x86_64-linux-gnu/libc-2.15.so
7fa0b8dbf000-7fa0b8dc1000 rw-p 001b6000 08:01 655381                     /lib/x86_64-linux-gnu/libc-2.15.so
7fa0b8dc1000-7fa0b8dc6000 rw-p 00000000 00:00 0 
7fa0b8dc6000-7fa0b8fc0000 r-xp 00000000 08:01 938766                     /usr/lib/libruby-1.9.1.so.1.9.1
7fa0b8fc0000-7fa0b91bf000 ---p 001fa000 08:01 938766                     /usr/lib/libruby-1.9.1.so.1.9.1
7fa0b91bf000-7fa0b91c4000 r--p 001f9000 08:01 938766                     /usr/lib/libruby-1.9.1.so.1.9.1
7fa0b91c4000-7fa0b91c8000 rw-p 001fe000 08:01 938766                     /usr/lib/libruby-1.9.1.so.1.9.1
7fa0b91c8000-7fa0b91e4000 rw-p 00000000 00:00 0 
7fa0b91e4000-7fa0b9206000 r-xp 00000000 08:01 655385                     /lib/x86_64-linux-gnu/ld-2.15.so
7fa0b92f2000-7fa0b93f9000 rw-p 00000000 00:00 0 
7fa0b9400000-7fa0b9401000 ---p 00000000 00:00 0 
7fa0b9401000-7fa0b9406000 rw-p 00000000 00:00 0 
7fa0b9406000-7fa0b9407000 r--p 00022000 08:01 655385                     /lib/x86_64-linux-gnu/ld-2.15.so
7fa0b9407000-7fa0b9409000 rw-p 00023000 08:01 655385                     /lib/x86_64-linux-gnu/ld-2.15.so
7fffe89bf000-7fffe89e0000 rw-p 00000000 00:00 0                          [stack]
7fffe89fe000-7fffe89ff000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

I have similar problem. Did you solve it?
Happens when I upload image. Maybe rmagick?