Confirmed and added the link to the external bug report.
I suggest you create a Bazaar branch of the current development version
of eglibc (2.13-20ubuntu6), fix the problem there and then link the
created branch here, this would speed up the release - see
<https://wiki.ubuntu.com/Bugs/HowToFix> for detailed instructions.
If you have any questions, just ask in the #ubuntu-devel IRC channel or
leave a comment here. Thanks!
** Changed in: eglibc (Ubuntu)
Status: New => Confirmed
** Bug watch added: Sourceware.org Bugzilla #12432
http://sourceware.org/bugzilla/show_bug.cgi?id=12432
** Also affects: eglibc via
http://sourceware.org/bugzilla/show_bug.cgi?id=12432
Importance: Unknown
Status: Unknown
** Description changed:
+ glibc's backtrace() function fails to give a complete backtrace with
+ 64-bit code when calling a recursive function. A 32-bit executable does
+ produce a correct backtrace. Using -fno-omit-frame-pointer does not
+ solve the problem for the 64-bit code.
+
This is alredy fixed in (e)glibc 2.14
http://sources.redhat.com/bugzilla/show_bug.cgi?id=12432
- [BZ #12432]
- * sysdeps/ia64/backtrace.c (struct trace_reg): Add cfa element.
- (dummy_getcfa): New function.
- (init): Get _Unwind_GetCFA address, use dummy if not found.
- (backtrace_helper): In recursion check, also check whether CFA changes.
- (__backtrace): Completely initialize arg.
+ [BZ #12432]
+ * sysdeps/ia64/backtrace.c (struct trace_reg): Add cfa element.
+ (dummy_getcfa): New function.
+ (init): Get _Unwind_GetCFA address, use dummy if not found.
+ (backtrace_helper): In recursion check, also check whether CFA changes.
+ (__backtrace): Completely initialize arg.
+ I suggest to backport this fix to (e)glibc 2.12/2.13 for ubuntu
+ maverick/natty/oneiric.
- I suggest to backport this fix to (e)glibc 2.12/2.13 for ubuntu
maverick/natty/oneiric.
-
- Pacth has been tested for
- eglibc_2.12.1-0ubuntu10.2
+ The patch has been tested for eglibc_2.12.1-0ubuntu10.2.
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https://bugs.launchpad.net/bugs/898077
Title:
backtrace fails with recursive functions on 64bit (BZ #12432)
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