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[Libvir] crash on domain shutdown (via ruby)



I am observing a crash with libvirt ruby bindings. Please see stack trace below. I am using libvirt-0.4.2 and ruby-libvirt-0.0.6. I have upgraded to new versions of both today, so I am not sure which one is to blame. The problem happening when I try to do domain shutdown.

I can reproduce the problem, so if somebody will be looking into that, I can aid debugging it.

Sincerely,
Vadim

*** glibc detected *** ruby: free(): invalid pointer: 0xb7e5e054 ***
======= Backtrace: =========
/lib/i686/nosegneg/libc.so.6[0x5166a6]
/lib/i686/nosegneg/libc.so.6(cfree+0x90)[0x519c10]
/usr/lib/libvirt.so.0(virResetError+0x2e)[0x421f3de]
/usr/lib/ruby/site_ruby/1.8/i386-linux/_libvirt.so[0x11ca3e]
/usr/lib/ruby/site_ruby/1.8/i386-linux/_libvirt.so(libvirt_dom_shutdown +0x5e)[0x11f9fe]
/usr/lib/libruby.so.1.8[0xb45db5]
/usr/lib/libruby.so.1.8[0xb4d49b]
/usr/lib/libruby.so.1.8[0xb4e09d]
/usr/lib/libruby.so.1.8[0xb45dc8]
/usr/lib/libruby.so.1.8[0xb4d49b]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55e76]
/usr/lib/libruby.so.1.8[0xb5695e]
/usr/lib/libruby.so.1.8[0xb56c1c]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55f92]
/usr/lib/libruby.so.1.8[0xb58a88]
/usr/lib/libruby.so.1.8[0xb59658]
/usr/lib/libruby.so.1.8[0xb459c7]
/usr/lib/libruby.so.1.8[0xb4d49b]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55e76]
/usr/lib/libruby.so.1.8[0xb5433a]
/usr/lib/libruby.so.1.8[0xb5695e]
/usr/lib/libruby.so.1.8[0xb58a88]
/usr/lib/libruby.so.1.8[0xb59658]
/usr/lib/libruby.so.1.8[0xb459c7]
/usr/lib/libruby.so.1.8[0xb4d49b]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55e76]
/usr/lib/libruby.so.1.8[0xb55bd0]
/usr/lib/libruby.so.1.8[0xb58a88]
/usr/lib/libruby.so.1.8(rb_yield+0x21)[0xb59eb1]
/usr/lib/libruby.so.1.8(rb_ary_each+0x31)[0xb33031]
/usr/lib/libruby.so.1.8[0xb45db5]
/usr/lib/libruby.so.1.8[0xb4d49b]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb5655d]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55f92]
/usr/lib/libruby.so.1.8[0xb54b8c]
/usr/lib/libruby.so.1.8[0xb5695e]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55f92]
/usr/lib/libruby.so.1.8[0xb551c0]
/usr/lib/libruby.so.1.8[0xb567c0]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55f92]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55f92]
/usr/lib/libruby.so.1.8[0xb5467a]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8(rb_call_super+0xa2)[0xb4f152]
/usr/lib/libruby.so.1.8[0xb54b37]
/usr/lib/libruby.so.1.8[0xb4dd74]
/usr/lib/libruby.so.1.8[0xb4e1b8]
/usr/lib/libruby.so.1.8[0xb55e76]
======= Memory map: ========
00110000-00111000 r-xp 00000000 08:01 6095946 /usr/lib/ruby/1.8/ i386-linux/fcntl.so 00111000-00112000 rw-p 00000000 08:01 6095946 /usr/lib/ruby/1.8/ i386-linux/fcntl.so 00112000-00114000 r-xp 00000000 08:01 6095942 /usr/lib/ruby/1.8/ i386-linux/digest.so 00114000-00115000 rw-p 00001000 08:01 6095942 /usr/lib/ruby/1.8/ i386-linux/digest.so
00116000-00117000 r-xp 00116000 00:00 0          [vdso]
00117000-00123000 r-xp 00000000 08:01 6193153 /usr/lib/ruby/ site_ruby/1.8/i386-linux/_libvirt.so 00123000-00124000 rw-p 0000c000 08:01 6193153 /usr/lib/ruby/ site_ruby/1.8/i386-linux/_libvirt.so 00124000-00250000 r-xp 00000000 08:01 5618582 /usr/lib/libxml2.so. 2.6.26 00250000-00256000 rw-p 0012b000 08:01 5618582 /usr/lib/libxml2.so. 2.6.26 00256000-0025f000 r-xp 00000000 08:01 6095962 /usr/lib/ruby/1.8/ i386-linux/zlib.so 0025f000-00260000 rw-p 00008000 08:01 6095962 /usr/lib/ruby/1.8/ i386-linux/zlib.so 00260000-00264000 r-xp 00000000 08:01 6193994 /usr/lib/ruby/1.8/ i386-linux/digest/sha2.so 00264000-00265000 rw-p 00003000 08:01 6193994 /usr/lib/ruby/1.8/ i386-linux/digest/sha2.so 00265000-0028a000 r-xp 00000000 08:01 5614351 /usr/lib/ libk5crypto.so.3.1 0028a000-0028b000 rw-p 00025000 08:01 5614351 /usr/lib/ libk5crypto.so.3.1 0028b000-00296000 r-xp 00000000 08:01 14915360 /lib/ libgcc_s-4.1.2-20070626.so.1 00296000-00297000 rw-p 0000a000 08:01 14915360 /lib/ libgcc_s-4.1.2-20070626.so.1 0029b000-002a6000 r-xp 00000000 08:01 6095957 /usr/lib/ruby/1.8/ i386-linux/socket.so 002a6000-002a7000 rw-p 0000a000 08:01 6095957 /usr/lib/ruby/1.8/ i386-linux/socket.so 002bb000-00332000 r-xp 00000000 08:01 5609971 /usr/lib/libgnutls.so. 13.0.6 00332000-00338000 rw-p 00076000 08:01 5609971 /usr/lib/libgnutls.so. 13.0.6 00338000-0038b000 r-xp 00000000 08:01 5609906 /usr/lib/libgcrypt.so. 11.2.2 0038b000-0038d000 rw-p 00053000 08:01 5609906 /usr/lib/libgcrypt.so. 11.2.2
0048d000-004a6000 r-xp 00000000 08:01 14909450   /lib/ld-2.5.so
004a6000-004a7000 r--p 00019000 08:01 14909450   /lib/ld-2.5.so
004a7000-004a8000 rw-p 0001a000 08:01 14909450   /lib/ld-2.5.so
004aa000-004ac000 r-xp 00000000 08:01 14915357   /lib/libcom_err.so.2.1
004ac000-004ad000 rw-p 00001000 08:01 14915357   /lib/libcom_err.so.2.1
004af000-005ec000 r-xp 00000000 08:01 14909452 /lib/i686/nosegneg/ libc-2.5.so 005ec000-005ee000 r--p 0013d000 08:01 14909452 /lib/i686/nosegneg/ libc-2.5.so 005ee000-005ef000 rw-p 0013f000 08:01 14909452 /lib/i686/nosegneg/ libc-2.5.so
005ef000-005f2000 rw-p 005ef000 00:00 0
005f4000-005f6000 r-xp 00000000 08:01 14909481   /lib/libdl-2.5.so
005f6000-005f7000 r--p 00001000 08:01 14909481   /lib/libdl-2.5.so
005f7000-005f8000 rw-p 00002000 08:01 14909481   /lib/libdl-2.5.so
005fa000-0060d000 r-xp 00000000 08:01 14909458 /lib/i686/nosegneg/ libpthread-2.5.so 0060d000-0060e000 r--p 00012000 08:01 14909458 /lib/i686/nosegneg/ libpthread-2.5.so 0060e000-0060f000 rw-p 00013000 08:01 14909458 /lib/i686/nosegneg/ libpthread-2.5.so
0060f000-00611000 rw-p 0060f000 00:00 0
00613000-00638000 r-xp 00000000 08:01 14909471 /lib/i686/nosegneg/ libm-2.5.so 00638000-00639000 r--p 00024000 08:01 14909471 /lib/i686/nosegneg/ libm-2.5.so 00639000-0063a000 rw-p 00025000 08:01 14909471 /lib/i686/nosegneg/ libm-2.5.so
0063c000-00651000 r-xp 00000000 08:01 14915356   /lib/libselinux.so.1
00651000-00653000 rw-p 00015000 08:01 14915356   /lib/libselinux.so.1
00655000-00690000 r-xp 00000000 08:01 14915355   /lib/libsepol.so.1
00690000-00691000 rw-p 0003a000 08:01 14915355   /lib/libsepol.so.1
00691000-0069b000 rw-p 00691000 00:00 0
0069d000-006af000 r-xp 00000000 08:01 5609961    /usr/lib/libz.so.1.2.3
006af000-006b0000 rw-p 00011000 08:01 5609961    /usr/lib/libz.so.1.2.3
006b2000-006b6000 r-xp 00000000 08:01 5614350 /usr/lib/ libxenstore.so.3.0.0 006b6000-006b7000 rw-p 00003000 08:01 5614350 /usr/lib/ libxenstore.so.3.0.0
006b7000-006ba000 rw-p 006b7000 00:00 0
006bd000-006d0000 r-xp 00000000 08:01 14909475   /lib/libnsl-2.5.so
006d0000-006d1000 r--p 00012000 08:01 14909475   /lib/libnsl-2.5.so
006d1000-006d2000 rw-p 00013000 08:01 14909475   /lib/libnsl-2.5.so
006d2000-006d4000 rw-p 006d2000 00:00 0
006d6000-006e5000 r-xp 00000000 08:01 14909651   /lib/libresolv-2.5.so
006e5000-006e6000 r--p 0000e000 08:01 14909651   /lib/libresolv-2.5.so
006e6000-006e7000 rw-p 0000f000 08:01 14909651   /lib/libresolv-2.5.so
006e7000-006e9000 rw-p 006e7000 00:00 0
006ec000-006f0000 r-xp 00000000 08:01 6095958 /usr/lib/ruby/1.8/ i386-linux/stringio.so 006f0000-006f1000 rw-p 00003000 08:01 6095958 /usr/lib/ruby/1.8/ i386-linux/stringio.so 006f9000-00711000 r-xp 00000000 08:01 5621763 /usr/lib/libsasl2.so. 2.0.22 00711000-00712000 rw-p 00017000 08:01 5621763 /usr/lib/libsasl2.so. 2.0.22 007e6000-00821000 r-xp 00000000 08:01 6095951 /usr/lib/ruby/1.8/ i386-linux/openssl.so 00821000-00823000 rw-p 0003a000 08:01 6095951 /usr/lib/ruby/1.8/ i386-linux/openssl.so
008c0000-008c5000 r-xp 00000000 08:01 14909479   /lib/libcrypt-2.5.so
008c5000-008c6000 r--p 00004000 08:01 14909479   /lib/libcrypt-2.5.so
008c6000-008c7000 rw-p 00005000 08:01 14909479   /lib/libcrypt-2.5.so
008c7000-008ee000 rw-p 008c7000 00:00 0
008f0000-0091d000 r-xp 00000000 08:01 5614349 /usr/lib/ libgssapi_krb5.so.2.2 0091d000-0091e000 rw-p 0002d000 08:01 5614349 /usr/lib/ libgssapi_krb5.so.2.2 00937000-0093b000 r-xp 00000000 08:01 6095959 /usr/lib/ruby/1.8/ i386-linux/strscan.so 0093b000-0093c000 rw-p 00003000 08:01 6095959 /usr/lib/ruby/1.8/ i386-linux/strscan.so 00948000-00950000 r-xp 00000000 08:01 5622056 /usr/lib/ libkrb5support.so.0.1 00950000-00951000 rw-p 00007000 08:01 5622056 /usr/lib/ libkrb5support.so.0.1
00985000-00987000 r-xp 00000000 08:01 14909636   /lib/libkeyutils-1.2.so
00987000-00988000 rw-p 00001000 08:01 14909636   /lib/libkeyutils-1.2.so
00b21000-00bfd000 r-xp 00000000 08:01 5623120 /usr/lib/libruby.so. 1.8.5 00bfd000-00c01000 rw-p 000db000 08:01 5623120 /usr/lib/libruby.so. 1.8.5
00c01000-00c10000 rw-p 00c01000 00:00 0
00c22000-00c3d000 r-xp 00000000 08:01 6095960 /usr/lib/ruby/1.8/ i386-linux/syck.so 00c3d000-00c3e000 rw-p 0001b000 08:01 6095960 /usr/lib/ruby/1.8/ i386-linux/syck.so 00c91000-00c94000 r-xp 00000000 08:01 5609879 /usr/lib/libgpg- error.so.0.3.0 00c94000-00c95000 rw-p 00002000 08:01 5609879 /usr/lib/libgpg- error.so.0.3.0 00cda000-00cdc000 r-xp 00000000 08:01 6095945 /usr/lib/ruby/1.8/ i386-linux/etc.so 00cdc000-00cdd000 rw-p 00001000 08:01 6095945 /usr/lib/ruby/1.8/ i386-linux/etc.so 00d2f000-00d31000 r-xp 00000000 08:01 6193294 /usr/lib/ruby/1.8/ i386-linux/digest/md5.so 00d31000-00d32000 rw-p 00001000 08:01 6193294 /usr/lib/ruby/1.8/ i386-linux/digest/md5.so 00def000-00df3000 r-xp 00000000 08:01 6193993 /usr/lib/ruby/1.8/ i386-linux/digest/sha1.so 00df3000-00df4000 rw-p 00003000 08:01 6193993 /usr/lib/ruby/1.8/ i386-linux/digest/sha1.so 041f2000-04275000 r-xp 00000000 08:01 5618887 /usr/lib/libvirt.so. 0.4.2 04275000-04277000 rw-p 00083000 08:01 5618887 /usr/lib/libvirt.so. 0.4.2
04277000-04279000 rw-p 04277000 00:00 0
048f5000-04a12000 r-xp 00000000 08:01 14909468 /lib/libcrypto.so. 0.9.8b 04a12000-04a25000 rw-p 0011c000 08:01 14909468 /lib/libcrypto.so. 0.9.8b
04a25000-04a28000 rw-p 04a25000 00:00 0
04a9a000-04b2a000 r-xp 00000000 08:01 5614339    /usr/lib/libkrb5.so.3.3
04b2a000-04b2d000 rw-p 0008f000 08:01 5614339    /usr/lib/libkrb5.so.3.3
04b2f000-04b70000 r-xp 00000000 08:01 14909496   /lib/libssl.so.0.9.8b
04b70000-04b74000 rw-p 00040000 08:01 14909496   /lib/libssl.so.0.9.8b
08048000-08049000 r-xp 00000000 08:01 5623121    /usr/bin/ruby
08049000-0804a000 rw-p 00000000 08:01 5623121    /usr/bin/ruby
08279000-0860e000 rw-p 08279000 00:00 0
b7000000-b7021000 rw-p b7000000 00:00 0
b7021000-b7100000 ---p b7021000 00:00 0
b7147000-b7348000 rw-p b7147000 00:00 0
b7348000-b7349000 ---p b7348000 00:00 0
b7349000-b7e66000 rw-p b7349000 00:00 0
b7e67000-b7f06000 rw-p b7e67000 00:00 0
b7f06000-b7f3b000 r--s 00000000 08:01 10750807   /var/db/nscd/hosts
b7f3b000-b7fc6000 rw-p b7f3b000 00:00 0
b7fcc000-b7fd2000 rw-p b7fcc000 00:00 0
bf864000-bf8b6000 rw-p bf864000 00:00 0          [stack]
Aborted


--
"La perfection est atteinte non quand il ne reste rien a ajouter, mais
quand il ne reste rien a enlever."  (Antoine de Saint-Exupery)


Attachment: smime.p7s
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