Bug 180484

Summary:	ptraced multithreaded exec dies with spurious SIGKILL
Product:	[Fedora] Fedora	Reporter:	Andrew Cagney <cagney>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5	CC:	cagney, kernel-maint, scox, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	2.6.16-1.2092_FC4	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-10-12 10:43:21 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	177240
Bug Blocks:	173278

Description Andrew Cagney 2006-02-08 15:47:45 UTC

Editor note: Re-basing the FC-4 kernel to kernel-2.6.15-1.1830_FC4.i686
introduced this regression into FC-4.


+++ This bug was initially created as a clone of Bug #177240 +++

Description of problem:


Version-Release number of selected component (if applicable):
2.6.14-1.1773_FC5smp, 2.6.15-1.1826.2.4_FC5

How reproducible:
100%

Steps to Reproduce:
1. gcc -o threadexec -g threadexec.c -lpthread
2. ./threadexec /bin/echo hi => see it work
3. strace -f -o log ./threadexec /bin/echo hi => see it fail
  
Actual results:

In the traced run, the process dies by SIGKILL immediately after execing /bin/echo.

Expected results:

After the exec, /bin/echo should run normally (and be traced).

Additional info:

-- Additional comment from roland on 2006-01-07 22:19 EST --
Created an attachment (id=122915)
threaded execer program for test case


-- Additional comment from roland on 2006-01-08 04:25 EST --
Verified this bug is in the current upstream kernel.

Comment 1 Dave Jones 2006-09-17 01:55:31 UTC

[This comment added as part of a mass-update to all open FC4 kernel bugs]

FC4 has now transitioned to the Fedora legacy project, which will continue to
release security related updates for the kernel.  As this bug is not security
related, it is unlikely to be fixed in an update for FC4, and has been migrated
to FC5.

Please retest with Fedora Core 5.

Thank you.

Comment 2 Roland McGrath 2006-10-12 10:43:21 UTC

This was already fixed.
2.6.16-1.2108_FC4smp tests ok.