Bug 86582 - glibc errata busted gdb
Summary: glibc errata busted gdb
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: glibc
Version: 8.0
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2003-03-25 22:10 UTC by Christopher Blizzard
Modified: 2016-11-24 15:07 UTC (History)
9 users (show)

Fixed In Version: 2.3.2-4.80.6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2003-10-03 10:48:48 UTC

Attachments (Terms of Use)

Description Christopher Blizzard 2003-03-25 22:10:19 UTC
Description of problem:

glibc errata busted gdb

Version-Release number of selected component (if applicable):


How reproducible:

Try to debug Mozilla.

Steps to Reproduce:
1. Try to start up Mozilla in gdb.
Actual results:

gdb will start spewing errors like:

Program received signal SIG32, Real-time event 32.

Expected results:

Program should be debugged as normal.

Additional info:

This happened when the glibc update was released.  Lots of people are reporting
this.  We need to unscrew it.

Comment 1 Jakub Jelinek 2003-03-27 18:08:52 UTC
Can you please try ftp://people.redhat.com/jakub/glibc/errata/8.0/ ?

Comment 2 Need Real Name 2003-03-27 18:21:29 UTC
In case anyone finds it useful, I filed a detailed report about this
bug as a gdb bug, number 1154.  You can see that here:


I wasn't debugging mozilla, but a different large, multithreaded program.
Same results though: gdb doesn't work at all for my program.

Comment 3 Jakub Jelinek 2003-03-27 18:35:02 UTC
FYI in the errata there is no NPTL, just two copies of linuxthreads (floating
stacks and non-floating-stacks). Because of a bug in the kernel and bugfix
in glibc only non-floating-stacks linuxthreads are used in 2.3.2-4.80,
so in 2.3.2-4.80.1 I've backed out the glibc bugfix so that floating-stacks
libpthread can be used unless LD_ASSUME_KERNEL=2.2.5 or kernel too old.

Comment 4 Jonathan Biggar 2003-03-27 22:26:41 UTC
I tried the 2.3.2-4.80.1 packages from 

Didn't help.  Gdb still refuses to recognize threaded programs.

Comment 5 Jakub Jelinek 2003-03-29 08:57:15 UTC
Oops, sorry. Actually more work was needed to make /lib/i686 libs to be used
even when the kernel supplies broken AT_PLATFORM aux vector value.
Can you try: ftp://people.redhat.com/jakub/glibc/errata/8.0/*4.80.3* ?

Comment 6 Andrew Schultz 2003-03-30 04:23:08 UTC
I'm no longer seeing the SIG32 problems with *4.80.3 packages

Comment 7 Need Real Name 2003-04-02 18:40:31 UTC
*4.80.3 fixed my gdb problems as well.

Comment 8 Ulrich Drepper 2003-10-03 10:48:48 UTC
Should be fixed in the last errata.

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