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From: "olsajiri at gmail dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sources.redhat.com Subject: [Bug libc/3924] New: LD_AUDIT implementation causing process segfaulting Date: Thu, 25 Jan 2007 21:49:00 -0000 [thread overview] Message-ID: <20070125214904.3924.olsajiri@gmail.com> (raw) There's a bug in the sysdeps/i386/dl-trampoline.S _dl_runtime_profile function making process segfaulting. Under some conditions the 'edi' and 'esi' registers are restored to wrong values. IMHO this could be fixed like this: Index: sysdeps/i386/dl-trampoline.S =================================================================== RCS file: /cvs/glibc/libc/sysdeps/i386/dl-trampoline.S,v retrieving revision 1.2 diff -r1.2 dl-trampoline.S 116d115 < andl $0xfffffff0, %edi # Align stack edi and esi registers are pushed on stack before it is alligned. In case it is really aligned those register wont be restored properly. I tried the fix and it is working for me. I dont know the reason for alligning the stack here, so hopefully I'm not missing something... :) I'm running the 2.4 version, but seems it is an issue in current sources as well. regards Jiri Olsa -- Summary: LD_AUDIT implementation causing process segfaulting Product: glibc Version: 2.4 Status: NEW Severity: enhancement Priority: P2 Component: libc AssignedTo: drepper at redhat dot com ReportedBy: olsajiri at gmail dot com CC: glibc-bugs at sources dot redhat dot com http://sourceware.org/bugzilla/show_bug.cgi?id=3924 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
next reply other threads:[~2007-01-25 21:49 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2007-01-25 21:49 olsajiri at gmail dot com [this message] 2007-01-25 22:17 ` [Bug libc/3924] " olsajiri at gmail dot com 2007-02-17 7:18 ` drepper at redhat dot com 2007-04-17 21:05 ` olsajiri at gmail dot com 2007-05-16 17:36 ` olsajiri at gmail dot com 2007-08-09 20:05 ` olsajiri at gmail dot com 2007-08-14 19:17 ` olsajiri at gmail dot com 2007-08-24 2:58 ` drepper at redhat dot com 2007-08-27 20:20 ` olsajiri at gmail dot com 2007-10-07 5:32 ` drepper at redhat dot com
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