From: Michael Richardson <mcr@sandelman.ottawa.on.ca>
To: Werner Almesberger <wa@almesberger.net>
Cc: BlaisorBlade <blaisorblade_spam@yahoo.it>,
Gerd Knorr <kraxel@bytesex.org>,
user-mode-linux-devel@lists.sourceforge.net,
Lorenzo Colitti <lorenzo@colitti.com>,
Massimo Rimondini <rimondin@dia.uniroma3.it>
Subject: Re: [uml-devel] Re: [uml-user] Host processes never terminate on 2.6.9rc3 host (stuck in ptrace_stop)
Date: Wed, 20 Oct 2004 19:54:28 -0400 [thread overview]
Message-ID: <31004.1098316468@marajade.sandelman.ottawa.on.ca> (raw)
In-Reply-To: Message from Werner Almesberger <wa@almesberger.net> of "Tue, 19 Oct 2004 02:00:55 -0300." <20041019020055.A31791@almesberger.net>
-----BEGIN PGP SIGNED MESSAGE-----
>>>>> "Werner" == Werner Almesberger <wa@almesberger.net> writes:
>> Quite frankly, I do not know the question myself - but people
>> seem to agree that this is a correct behaviour.
Werner> The odd thing is that a process that was ptraced but whose
Werner> ptracer is long dead *still* needs the CONT. That doesn't
Werner> look right to me.
Definitely is WRONG from my point of view.
If the tracer goes away, then -9 should work. Principle of least surprise.
I tend to believe that -9 should also override being traced as well.
I can sort of understand that someone might think they can trace through
a -9, but since that signal is never delivered to the process, nor can
it be ignored, I can't understand why it matters.
Sure, let the ptrace'r know that the process got a -9.
- --
] "Elmo went to the wrong fundraiser" - The Simpson | firewalls [
] Michael Richardson, Xelerance Corporation, Ottawa, ON |net architect[
] mcr@xelerance.com http://www.sandelman.ottawa.on.ca/mcr/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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Comment: Finger me for keys
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next prev parent reply other threads:[~2004-10-20 23:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4173F1FD.6080004@colitti.com>
[not found] ` <87d5zgrkm2.fsf@bytesex.org>
2004-10-18 19:18 ` [uml-devel] Re: [uml-user] Host processes never terminate on 2.6.9rc3 host (stuck in ptrace_stop) BlaisorBlade
2004-10-18 21:26 ` Gerd Knorr
2004-10-18 22:23 ` BlaisorBlade
2004-10-19 5:00 ` Werner Almesberger
2004-10-19 15:47 ` BlaisorBlade
2004-10-19 16:15 ` Werner Almesberger
2004-10-19 17:58 ` Gerd Knorr
2004-10-20 23:54 ` Michael Richardson [this message]
2004-10-21 7:57 ` Gerd Knorr
2004-10-19 6:59 ` Henrik Nordstrom
2004-10-19 7:26 ` Gerd Knorr
2004-10-19 8:47 ` Henrik Nordstrom
2004-10-19 9:04 ` Gerd Knorr
2004-10-19 7:18 ` Gerd Knorr
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