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* [Bug general/4217] New: utrace: PTRACE_ATTACH of SIGSTOPped process hangs
@ 2007-03-20 13:57 cagney at redhat dot com
2007-10-04 20:24 ` [Bug general/4217] " jan dot kratochvil at redhat dot com
0 siblings, 1 reply; 2+ messages in thread
From: cagney at redhat dot com @ 2007-03-20 13:57 UTC (permalink / raw)
To: frysk-bugzilla
Opened by Jan Kratochvil (jan.kratochvil@redhat.com) on 2007-03-18 13:33
EST [reply] Private
Description of problem:
utrace implementation of ptrace(2) is incompatible:
PTRACE_ATTACH on a process being stopped (by SIGSTOP) never returns.
On non-utrace kernels it returns, tested:
kernel-2.6.20-1.2300.fc5.x86_64
linux-2.6.17.7.x86_64 (from kernel.org)
linux-2.6.16-xen.i686 (from kernel.org)
Version-Release number of selected component (if applicable):
kernel-xen-2.6.19-1.2898.2.3.fc7.i686
kernel-2.6.20-1.2925.fc6.i586
How reproducible:
Always.
Steps to Reproduce:
1. Process A should be: kill -STOP process_A_PID
2. Process B should: ptrace (PTRACE_ATTACH, process_A_PID, NULL, NULL);
3. Process B should: waitpid (process_A_PID, &status, 0);
Red Hat bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=232837
--
Summary: utrace: PTRACE_ATTACH of SIGSTOPped process hangs
Product: frysk
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: general
AssignedTo: frysk-bugzilla at sourceware dot org
ReportedBy: cagney at redhat dot com
OtherBugsDependingO 1496
nThis:
http://sourceware.org/bugzilla/show_bug.cgi?id=4217
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* [Bug general/4217] utrace: PTRACE_ATTACH of SIGSTOPped process hangs
2007-03-20 13:57 [Bug general/4217] New: utrace: PTRACE_ATTACH of SIGSTOPped process hangs cagney at redhat dot com
@ 2007-10-04 20:24 ` jan dot kratochvil at redhat dot com
0 siblings, 0 replies; 2+ messages in thread
From: jan dot kratochvil at redhat dot com @ 2007-10-04 20:24 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From jan dot kratochvil at redhat dot com 2007-10-04 20:24 -------
Verified as no longer reproducible on:
Fedora-8 (kernel-2.6.23-0.204.rc8.fc8.x86_64)
Fedora-7 (kernel-2.6.22.9-91.fc7.x86_64)
Fedora-6 (kernel-2.6.22.7-57.fc6.x86_64)
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=4217
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You are the assignee for the bug, or are watching the assignee.
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2007-03-20 13:57 [Bug general/4217] New: utrace: PTRACE_ATTACH of SIGSTOPped process hangs cagney at redhat dot com
2007-10-04 20:24 ` [Bug general/4217] " jan dot kratochvil at redhat dot com
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