On Mon, May 13, 2013 at 07:08:57PM +0400, Dmitry V. Levin wrote:
> On Mon, May 13, 2013 at 05:04:36PM +0200, Denys Vlasenko wrote:
> > On 05/04/2013 11:21 PM, Dmitry V. Levin wrote:
> > > On Wed, May 01, 2013 at 11:04:13PM -0400, Mike Frysinger wrote:
> > >> i imagine this has to do with the probing of new ptrace features, but it
> > >> still
> > >> seems wrong for the first two lines to be signal stuff when tracing any
> > >> program:
> > >> $ ./strace -eexecve /bin/true
> > >> --- stopped by SIGSTOP ---
> > >> --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=10908,
> > >> si_uid=8282} ---
> > >
> > > These two lines are annoying, aren't they?
> > > It was discussed in February, with no visible result so far.
> >
> > I will try to suppress them.
>
> Another issue with USE_SEIZE is that -D option doesn't work:
>
> $ env -i ./strace -D /bin/true
> ./strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
> Alarm clockApparently, this is due to CONFIG_SECURITY_YAMA in default configuration, it has nothing to do with PTRACE_SEIZE. I'm testing the fix. -- ldv
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