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[Bug libc/786] New: Assertion failure in sysdeps/generic/dl-tls.c: _dl_next_tls_modid: `result <= _rtld_local._dl_tls_max_dtv_idx'
- From: "ed at catmur dot co dot uk" <sourceware-bugzilla at sources dot redhat dot com>
- To: glibc-bugs at sources dot redhat dot com
- Date: 13 Mar 2005 02:20:30 -0000
- Subject: [Bug libc/786] New: Assertion failure in sysdeps/generic/dl-tls.c: _dl_next_tls_modid: `result <= _rtld_local._dl_tls_max_dtv_idx'
- Reply-to: sourceware-bugzilla at sources dot redhat dot com
When a shared library is unloaded during program startup due to failure to
resolve library dependency, attempt to use TLS in libraries loaded to satisfy
subsequent dependencies crashes with:
Inconsistency detected by ld.so: ../sysdeps/generic/dl-tls.c: 76:
_dl_next_tls_modid: Assertion `result <= _rtld_local._dl_tls_max_dtv_idx' failed!
Initial analysis and testcase here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=219352#msg122
The testcase is at the bottom of the linked bug report, direct URL
http://bugs.debian.org/cgi-bin/bugreport.cgi/xbug.tar.gz?bug=219352&msg=122&att=1
Further analysis and demonstration patch here:
http://bugs.gentoo.org/show_bug.cgi?id=52374#c15
Google search on assertion string shows this bug has been known at least since
November 2003. It tends to manifest in media applications e.g. xmms, vlc as
these use many shared library plugins which may or may not be present at runtime.
--
Summary: Assertion failure in sysdeps/generic/dl-tls.c:
_dl_next_tls_modid: `result <=
_rtld_local._dl_tls_max_dtv_idx'
Product: glibc
Version: 2.3.4
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: gotom at debian dot or dot jp
ReportedBy: ed at catmur dot co dot uk
CC: glibc-bugs at sources dot redhat dot com
http://sources.redhat.com/bugzilla/show_bug.cgi?id=786
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