Bug 86582 - glibc errata busted gdb
glibc errata busted gdb
Product: Red Hat Linux
Classification: Retired
Component: glibc (Show other bugs)
All Linux
medium Severity high
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Assigned To: Jakub Jelinek
Brian Brock
Depends On:
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Reported: 2003-03-25 17:10 EST by Christopher Blizzard
Modified: 2016-11-24 10:07 EST (History)
9 users (show)

See Also:
Fixed In Version: 2.3.2-4.80.6
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2003-10-03 06:48:48 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Christopher Blizzard 2003-03-25 17:10:19 EST
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 13:08:52 EST
Can you please try ftp://people.redhat.com/jakub/glibc/errata/8.0/ ?
Comment 2 Need Real Name 2003-03-27 13:21:29 EST
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 13:35:02 EST
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 17:26:41 EST
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 03:57:15 EST
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 2003-03-29 23:23:08 EST
I'm no longer seeing the SIG32 problems with *4.80.3 packages
Comment 7 Need Real Name 2003-04-02 13:40:31 EST
*4.80.3 fixed my gdb problems as well.
Comment 8 Ulrich Drepper 2003-10-03 06:48:48 EDT
Should be fixed in the last errata.

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