[Bug general/4330] New: utrace: PTRACE_CONT SIGSTOP should not kill

["jan dot kratochvil at redhat dot com" <sourceware-bugzilla@sourceware.org>]

Opened by Jan Kratochvil (jan.kratochvil@redhat.com)  	 on 2007-04-06 13:46
EST  	[reply]  	   Private

Description of problem:
Found a regression against kernel.org in RH kernels utrace based implementation
of ptrace(2).

Version-Release number of selected component (if applicable):
kernel-2.6.20-1.3045.fc7.x86_64
(on FC6 system)

How reproducible:
Always.

Steps to Reproduce:
1. gcc -o stopkills stopkills.c -Wall -ggdb3
2. ./stopkills

Actual results:
./stopkills: PTRACE_DETACH: No such process

Expected results:
(nothing; exit code 0)

Additional info:
ptrace (PTRACE_CONT, child_pid, NULL, (void *) SIGSTOP);
ptrace (PTRACE_DETACH, child_pid, NULL, NULL);
PTRACE_DETACH fails by ESRCH on the utrace kernels.

Red Hat bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=235521

-- 
           Summary: utrace: PTRACE_CONT SIGSTOP should not kill
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: jan dot kratochvil at redhat dot com
OtherBugsDependingO 1496
             nThis:


http://sourceware.org/bugzilla/show_bug.cgi?id=4330

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