On Sun, Aug 05, 2012 at 05:31:19PM +0200, Juergen Lock wrote: > Hi kib, -current, seems we have a segfault in rtld when updating > the multimedia/vlc port from the version currently in ports to the > 2.0.3 CFT version from here: > > http://people.freebsd.org/~nox/tmp/vlc-2.0.3-006.patch > > (If you test the LIVEMEDIA knob you also need this update: > > http://people.freebsd.org/~nox/tmp/livemedia-20120404-001.patch > > ) Please do two things. 1. Provide me the output of readelf -a for the module that was loaded. 2. Recompile rtld with debug symbols and redo the build to get the useful backtrace from core: cd /usr/src/libexec/rtld-elf make clean make all install DEBUG_FLAGS=-g > > In article <20120804110952.4f3a9cfd_at_ernst.jennejohn.org> you write: > >On Fri, 3 Aug 2012 18:36:33 +0200 > >Juergen Lock <nox_at_jelal.kn-bremen.de> wrote: > > > >> On Fri, Aug 03, 2012 at 05:00:37PM +0200, Rainer Hurling wrote: > >> > On 03.08.2012 14:27 (UTC+2), Gary Jennejohn wrote: > >> > > On Thu, 2 Aug 2012 22:56:26 +0200 > >> > > Juergen Lock <nox_at_jelal.kn-bremen.de> wrote: > >> > > > >> > > [trimmed irrelevant content] > >> > >> Ok I added that check: > >> > >> > >> > >> http://people.freebsd.org/~nox/tmp/vlc-2.0.3-005.patch > >> > >> > >> > >> Enjoy, :) > >> > >> > >> > > > >> > > AMD64 on HEAD. > >> > > > >> > > I always get this error, no matter which patch I use: > >> > > > >> > > GEN ../modules/plugins.dat > >> > > gmake[2]: *** [../modules/plugins.dat] Segmentation fault: 11 (core dumped) > >> > > gmake[2]: Leaving directory `/usr/ports/multimedia/vlc/work/vlc-2.0.3/bin' > >> > > gmake[1]: *** [all-recursive] Error 1 > >> > > gmake[1]: Leaving directory `/usr/ports/multimedia/vlc/work/vlc-2.0.3' > >> > > gmake: *** [all] Error 2 > >> > > *** [do-build] Error code 1 > >> > > >> > I get exactly the same error with CURRENT amd64. > >> > > >> Hm how old are both your installed src and ports? You two are the > >> first to report this and I just tried to reproduce it on a head > >> checkout from May 13 and ports from June 18, and couldn't. > >> > > > >I update the ports and source trees almost every day. I do not install > >new ports binaries unless absolutely necessary, so the ports binaries > >are pretty much rather old. > > > >Just installed a new world/kernel today (updated yesterdya), r239006. > > > >> > BTW, mplayer from ports does not build with liveMedia-20120404 ... > >> > > >> > > Stop in /usr/ports/multimedia/vlc. > >> > > *** [build] Error code 1 > >> > > > >> > > and there's a work/vlc-2.0.3/bin/vlc-cache-gen.core generated. > >> > > > >> > > May be because I have a mix of old and new dependencies, although the vlc > >> > > port never tries to update any of them. > >> > > > >> Well ports never update dependencies themselves, you need to use > >> tools like portmaster for that. > >> > > > >I avoid using tools whenever possible. Maybe I will have to try > >portmaster, but I dread seeing 50 ports updated just because I > >want to update one port. > > > >I turned on -g in make.conf and ran vlc-cache-gen in gdb. Here's the > >result. > > > >gdb /usr/ports/multimedia/vlc/work/vlc-2.0.3/bin/.libs/vlc-cache-gen > >GNU gdb 6.1.1 [FreeBSD] > >Copyright 2004 Free Software Foundation, Inc. > >GDB is free software, covered by the GNU General Public License, and you are > >welcome to change it and/or distribute copies of it under certain conditions. > >Type "show copying" to see the conditions. > >There is absolutely no warranty for GDB. Type "show warranty" for details. > >This GDB was configured as "amd64-marcel-freebsd"... > >(gdb) r ../modules/ > >Starting program: /usr/ports/multimedia/vlc/work/vlc-2.0.3/bin/.libs/vlc-cache-gen ../modules/ > >[New LWP 100125] > >[New Thread 802406400 (LWP 100125/vlc-cache-gen)] > > > >Program received signal SIGSEGV, Segmentation fault. > >[Switching to Thread 802406400 (LWP 100125/vlc-cache-gen)] > >0x0000000800606588 in matched_symbol () from /libexec/ld-elf.so.1 > >(gdb) bt > >#0 0x0000000800606588 in matched_symbol () from /libexec/ld-elf.so.1 > >#1 0x00000008006087e4 in symlook_obj () from /libexec/ld-elf.so.1 > >#2 0x0000000800608ae7 in symlook_list () from /libexec/ld-elf.so.1 > >#3 0x000000080060911b in symlook_default () from /libexec/ld-elf.so.1 > >#4 0x000000080060939d in find_symdef () from /libexec/ld-elf.so.1 > >#5 0x000000080060375b in reloc_non_plt () from /libexec/ld-elf.so.1 > >#6 0x0000000800606ae8 in relocate_object () from /libexec/ld-elf.so.1 > >#7 0x00000008006084a8 in dlopen_object () from /libexec/ld-elf.so.1 > >#8 0x0000000800608f67 in rtld_dlopen () from /libexec/ld-elf.so.1 > >#9 0x0000000800affe95 in module_Load (p_this=0x80244c198, > > psz_file=0x802472c00 "../modules//codec/.libs/libfluidsynth_plugin.so", > > p_handle=0x7fffffffd180, lazy=true) at posix/plugin.c:62 > >#10 0x0000000800adef4b in module_InitDynamic (obj=0x80244c198, > > path=0x802472c00 "../modules//codec/.libs/libfluidsynth_plugin.so", > > fast=true) at modules/bank.c:536 > >#11 0x0000000800adede2 in AllocatePluginFile (bank=0x7fffffffd490, > > abspath=0x802472c00 "../modules//codec/.libs/libfluidsynth_plugin.so", > > relpath=0x802472b80 "codec/.libs/libfluidsynth_plugin.so", > > st=0x7fffffffd210) at modules/bank.c:479 > >#12 0x0000000800adeca3 in AllocatePluginDir (bank=0x7fffffffd490, maxdepth=2, > > absdir=0x802472b00 "../modules//codec/.libs", > > reldir=0x802472a80 "codec/.libs") at modules/bank.c:440 > >#13 0x0000000800adecd7 in AllocatePluginDir (bank=0x7fffffffd490, maxdepth=3, > > absdir=0x802472a00 "../modules//codec", reldir=0x8024704f0 "codec") > > at modules/bank.c:444 > >#14 0x0000000800adecd7 in AllocatePluginDir (bank=0x7fffffffd490, maxdepth=4, > > absdir=0x802452c20 "../modules/", reldir=0x0) at modules/bank.c:444 > >#15 0x0000000800ade9b8 in AllocatePluginPath (p_this=0x80244c198, > > path=0x802452c20 "../modules/", mode=CACHE_USE) at modules/bank.c:353 > >#16 0x0000000800ade823 in AllocateAllPlugins (p_this=0x80244c198) > > at modules/bank.c:298 > >#17 0x0000000800ade55d in module_LoadPlugins (obj=0x80244c198) > > at modules/bank.c:189 > >#18 0x0000000800a53e63 in libvlc_InternalInit (p_libvlc=0x80244c198, i_argc=3, > > ppsz_argv=0x7fffffffd6f0) at libvlc.c:247 > >#19 0x000000080082234d in libvlc_new (argc=2, argv=0x7fffffffd7a0) at core.c:59 > >#20 0x0000000000400d1c in main (argc=2, argv=0x7fffffffd858) at cachegen.c:107 > >(gdb) > > > >If I remove enough plugins then I can build and install vlc, but the > >result isn't very useful. > > > >The old port builds, installs and works just fine with all the plugins I > >want to use so I'll stick to it. > > I Cc'd -current and kib (who did the majority of the recent rtld commits), > maybe he has an idea. Seems dlopen() was called from here, > /usr/ports/multimedia/vlc/work/vlc-2.0.3/src/posix/plugin.c , line 62: > > /** > * Load a dynamically linked library using a system dependent method. > * > * \param p_this vlc object > * \param psz_file library file > * \param p_handle the module handle returned > * \return 0 on success as well as the module handle. > */ > int module_Load( vlc_object_t *p_this, const char *psz_file, > module_handle_t *p_handle, bool lazy ) > { > #if defined (RTLD_NOW) > const int flags = lazy ? RTLD_LAZY : RTLD_NOW; > #elif defined (DL_LAZY) > const int flags = DL_LAZY; > #else > const int flags = 0; > #endif > char *path = ToLocale( psz_file ); > > module_handle_t handle = dlopen( path, flags ); > if( handle == NULL ) > { > msg_Warn( p_this, "cannot load module `%s' (%s)", path, dlerror() ); > LocaleFree( path ); > return -1; > } > LocaleFree( path ); > *p_handle = handle; > return 0; > } > > Thanx, :) > Juergen
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