There seems to be a bug in mysql 5.0.26 that makes it crash on certain select. see http://bugs.mysql.com/bug.php?id=23184 and it seems that there is a patch available, so please consider a -r2 to apply this patch. I'm experiencing the same problem here with mysql-5.0.26-r1 here it is my mysqld.err output: thd=0x8d140c8 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... Cannot determine thread, fp=0xb3d379b8, backtrace may not be correct. Stack range sanity check OK, backtrace follows: 0x818e95c 0x81e1993 0x81f8ab5 0x81fa282 0x81fcca3 0x815c3ee 0x815b565 0x815beeb 0x811969d 0x8122c0e 0x80fb997 0x81063c0 0x81df3d4 0x81f8637 0x81eca4f 0x81ecb07 0x81f9eed 0x81fe9f1 0x81fef4a 0x81ff8c8 0x81aaeb0 0x81b0ae4 0x81b107e 0x81b2652 0x81b3444 0xb7dd6294 0xb7c1932e New value of fp=(nil) failed sanity check, terminating stack trace! Please read http://dev.mysql.com/doc/mysql/en/Using_stack_trace.html and follow instructions on how to resolve the stack trace. Resolved stack trace is much more helpful in diagnosing the problem, so please do resolve it Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd->query at 0x8d57ad8 = select distinct ViajePedido.*,viajePedidoEstados.*,concat(date_format(viajeFechas.fechaInicio ,'%e-%c-%Y'),'/',date_format(viajeFechas.fechaFin ,'%e-%c-%Y'))as fecha, viajes.Nombre as NombreViaje,viajeProveedores.Nombre as Proveedor,viajeDestinos.*,viajeOwner.aliasOwner as propietario_ord, @anticipada := group_concat(distinct VC.idCategoria) like '%17%' as reservaAnticipada, @precio := (select sum(valorTotal) as precio from detallePrecioViajePedido where idviajePedido=ViajePedido.idviajePedido group by MonedaTxt) as precio, (select MonedaTxt as MonedaTxt from detallePrecioViajePedido where idviajePedido=ViajePedido.idviajePedido group by MonedaTxt) as MonedaTxt, cast(lpad(format((VIA_pedidos_prioridades.punts + (@precio/250) + if(convert(ViajePedido.fechaInicioPedido,datetime) < date_add(now(),interval 7 day),20,0) + if(ViajePedido.fechaPedido < date_sub(now(),interval 3 day),20,if(ViajePedido.fechaPedido < date_sub(now(),interval 2 day),10,if(ViajePedido.fechaPedido < date_sub(now(),interval 1 day),5,0))) + thd->thread_id=16 The manual page at http://www.mysql.com/doc/en/Crashing.html contains information that should help you find out what is causing the crash. pure virtual method called here it is my emerge --info: Portage 2.1.1-r1 (default-linux/x86/2006.1, gcc-4.1.1, glibc-2.4-r3, 2.6.17-gentoo-r8 i686) ================================================================= System uname: 2.6.17-gentoo-r8 i686 Pentium III (Coppermine) Gentoo Base System version 1.12.5 Last Sync: Tue, 31 Oct 2006 01:47:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: [Not Present] dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.13-r3 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=i686 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://portage.atrapalo.com/gentoo-portage" USE="x86 bash-completion bitmap-fonts cli cracklib crypt cups dlloader dri elibc_glibc fortran gdbm gpm iconv innodb input_devices_evdev input_devices_keyboard input_devices_mouse isdnlog kernel_linux latin1 libg++ mysql mysqli ncurses nls nptl nptlonly pam pcntl pcre perl ppds pppd python readline reflection session snmp sockets spl ssl tcpd threads truetype-fonts type1-fonts udev unicode userland_GNU video_cards_apm video_cards_ark video_cards_ati video_cards_chips video_cards_cirrus video_cards_cyrix video_cards_dummy video_cards_fbdev video_cards_glint video_cards_i128 video_cards_i740 video_cards_i810 video_cards_imstt video_cards_mga video_cards_neomagic video_cards_nsc video_cards_nv video_cards_rendition video_cards_s3 video_cards_s3virge video_cards_savage video_cards_siliconmotion video_cards_sis video_cards_sisusb video_cards_tdfx video_cards_tga video_cards_trident video_cards_tseng video_cards_v4l video_cards_vesa video_cards_vga video_cards_via video_cards_vmware video_cards_voodoo xorg zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY I've tried to debug the problem following these instructions http://bugs.mysql.com/bug.php?id=23184 but even if I had enabled USE="debug" when emerging mysql, it produces a stripped mysqld and I cannot run nm on it.
please try this testcase from the upstream patch (http://lists.mysql.com/commits/14591): USE test; CREATE TABLE t1 (a INT, b INT); INSERT INTO t1 VALUES (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(1,7),(1,8); INSERT INTO t1 SELECT a, b+8 FROM t1; INSERT INTO t1 SELECT a, b+16 FROM t1; INSERT INTO t1 SELECT a, b+32 FROM t1; INSERT INTO t1 SELECT a, b+64 FROM t1; INSERT INTO t1 SELECT a, b+128 FROM t1; INSERT INTO t1 SELECT a, b+256 FROM t1; INSERT INTO t1 SELECT a, b+512 FROM t1; INSERT INTO t1 SELECT a, b+1024 FROM t1; INSERT INTO t1 SELECT a, b+2048 FROM t1; INSERT INTO t1 SELECT a, b+4096 FROM t1; INSERT INTO t1 SELECT a, b+8192 FROM t1; INSERT INTO t1 SELECT a, b+16384 FROM t1; INSERT INTO t1 SELECT a, b+32768 FROM t1; SELECT a,COUNT(DISTINCT b) AS cnt FROM t1 GROUP BY a HAVING cnt > 50; SELECT a,SUM(DISTINCT b) AS sumation FROM t1 GROUP BY a HAVING sumation > 50; SELECT a,AVG(DISTINCT b) AS average FROM t1 GROUP BY a HAVING average > 50;
Argh, this test case doesn't crash mysql...:/ So it shouldn't be the bug I pointed out the one that affect my installation, should it? Is there any way in gentoo to collect this debug info? (http://dev.mysql.com/doc/mysql/en/Using_stack_trace.html)
FEATURES='nostrip debug' CFLAGS='-O2 -march=i686 -pipe -ggdb' CXXFLAGS='-O2 -march=i686 -pipe -ggdb' USE=debug emerge mysql
FEATURES=nostrip ....stupid me, I didn't remember. Thanks for the tip :) I'm going to compile
resolve_stack_dump output: 0x818e95c handle_segfault + 668 0x81e1993 _Z11copy_fieldsP15TMP_TABLE_PARAM + 35 0x81f8ab5 _Z10end_updateP4JOINP13st_join_tableb + 133 0x81fa282 _Z9do_selectP4JOINP4ListI4ItemEP8st_tableP9Procedure + 1202 0x81fcca3 _ZN4JOIN4execEv + 1635 0x815c3ee _ZN30subselect_single_select_engine4execEv + 158 0x815b565 _ZN14Item_subselect4execEv + 21 0x815beeb _ZN24Item_singlerow_subselect8val_realEv + 27 0x811969d _ZN22Item_func_set_user_var5checkEb + 301 0x8122c0e _ZN22Item_func_set_user_var8val_realEv + 30 0x80fb997 _ZN4Item13save_in_fieldEP5Fieldb + 455 0x81063c0 _ZN17Item_result_field20save_in_result_fieldEb + 32 0x81df3d4 _Z10copy_funcsPP4Item + 52 0x81f8637 _Z15end_write_groupP4JOINP13st_join_tableb + 599 0x81eca4f _Z20evaluate_join_recordP4JOINP13st_join_tableiPc + 447 0x81ecb07 _Z10sub_selectP4JOINP13st_join_tableb + 119 0x81f9eed _Z9do_selectP4JOINP4ListI4ItemEP8st_tableP9Procedure + 285 0x81fe9f1 _ZN4JOIN4execEv + 9137 0x81fef4a _Z12mysql_selectP3THDPPP4ItemP13st_table_listjR4ListIS1_ES2_jP8st_orderSB_S2_SB_mP13select_resultP18st_select_lex_unitP13st_sel + 362 0x81ff8c8 _Z13handle_selectP3THDP6st_lexP13select_resultm + 456 0x81aaeb0 _Z21mysql_execute_commandP3THD + 9888 0x81b0ae4 _Z11mysql_parseP3THDPcj + 612 0x81b107e _Z16dispatch_command19enum_server_commandP3THDPcj + 1326 0x81b2652 _Z10do_commandP3THD + 258 0x81b3444 handle_one_connection + 3076 0xb7ddf294 _end + -1351138236 0xb7c2232e _end + -1352960802 anyway I'm reporting the problem to mysql devs too (i've added a comment in the bug I mentioned in #1 )
According to upstream bug "Pushed in 5.0.32/5.1.14-beta", so please use dev-db/mysql-5.0.32, which should fix this. If not, reopen the bug upstream and reoprt back here once they fixed it fully, so that we can add the patch to the ebuilds (all this is hypotetical, it should now work with 5.0.32). Best regards, CHTEKK.
