Bug 1013453

Summary:	gdb eats gigabytes of memory very fast
Product:	[Fedora] Fedora	Reporter:	cpg <cpg>
Component:	gdb	Assignee:	Sergio Durigan Junior <sergiodj>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	19	CC:	gbenson, jan.kratochvil, palves, pmuldoon, sergiodj, tromey
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	gdb-7.6.1-42.fc19	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-10-10 14:47:40 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description cpg 2013-09-30 06:31:33 UTC

Description of problem:

when debugging a go program, gdb eats memory at what looks like 1GB/sec and brings the machine to its knees.

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

gdb-7.6.1-41.fc19

How reproducible:

fairly reproducible, nearly 100% of the time

Steps to Reproduce:
1. git clone https://github.com/amahi/spdy-proxy
2. cd spdy-proxy
3. make
4. gdb bin/p
5. run
6. ^C
7. goroutine 4 bt

Actual results:

gdb stops responding to ctrl-c and the machine becomes unresponsive.

on another ssh session, i could see gdb brutally eating memory

Expected results:

show a backtrace

Additional info:

sergiodj produced a test rpm that has a patch for this issue.
http://koji.fedoraproject.org/koji/taskinfo?taskID=6003277

Comment 1 Sergio Durigan Junior 2013-09-30 06:36:31 UTC

Thanks for the report.  The bug is fixed by the following commit:

commit cbb25189b69e501ddca64917d810b54bb1466c93
Author: Doug Evans <dje>
Date:   Thu Aug 1 23:59:47 2013 +0000

        PR symtab/15695
        * valops.c (value_struct_elt): Add missing call to check_typedef.
        (value_find_oload_method_list): Ditto.
    
        testsuite/
        * gdb.base/func-ptr.exp: New file.
        * gdb.base/func-ptr.c: New file.

I haven't regression-tested the patch when I generated the scratch build, but it fixes this bug.

Comment 2 Fedora Update System 2013-10-01 03:25:20 UTC

gdb-7.6.1-42.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/gdb-7.6.1-42.fc19

Comment 3 Fedora Update System 2013-10-01 04:08:22 UTC

gdb-7.6.50.20130731-12.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/gdb-7.6.50.20130731-12.fc20

Comment 4 Fedora Update System 2013-10-01 04:31:24 UTC

gdb-7.5.1-43.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/gdb-7.5.1-43.fc18

Comment 5 Fedora Update System 2013-10-02 06:27:33 UTC

Package gdb-7.5.1-43.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing gdb-7.5.1-43.fc18'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-18050/gdb-7.5.1-43.fc18
then log in and leave karma (feedback).

Comment 6 Fedora Update System 2013-10-10 14:47:40 UTC

gdb-7.6.50.20130731-12.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2013-10-21 00:58:30 UTC

gdb-7.6.1-42.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.