From: Eric Van Hensbergen <ericvh@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] A little more ado about async Tclunk
Date: Sun, 31 Oct 2010 09:21:42 -0500 [thread overview]
Message-ID: <AANLkTinAypybpoOy2q5UnjSU=ejK3qbtqMrrL+ADx-GF@mail.gmail.com> (raw)
In-Reply-To: <AANLkTikhGmWwisykJ2kbx_yk3P+HU40HuebpFeXLbPhT@mail.gmail.com>
http://www.olc.edu/~cdelong/jargon-4.4.7/jargon-4.4.7/html/D/deadly-embrace.html
In the case of 9P I believe the concern in context is waiting for
clunks when the server is dead means the waiter will never die. Can
get particularly bad if its actually a communication failure with
bi-directional mounts where both sides can't exit because they can't
talk to each other. Perhaps better explained here:
http://www.mail-archive.com/9fans@cse.psu.edu/msg03597.html
also discussed between brucee and russ here:
http://thedailyreviewer.com/compsys/view/9fans-clunk-clunk-10445370
The CSP/Hoare (University of Wollongong, really, is that a joke?)
reference that Brucee made is most likely here:
http://goo.gl/DphA
although it seems to point to:
Dijkstra, E.W. Cooperating sequential processes. in Programming
Languages ed. F. Genuys. - -
Academic ~.r.ess, New York, 1968 pp 43-112.
as the first reference to "deadly embrace".
While I have a bit of insight into what brucee is talking about, all
of these came from google "deadly embrace" and google "deadly embrace
clunk" for the Plan 9 specific references. Its a always a bit of a
pain when brucee is a bit subtle, but its more of a pain when people
are to lazy to even bother searching.
(reading ahead in the thread, which I was too lazy to do before
searching, I see that Gorka at least bothered to search - he gets the
golden google prize - which I think might be an pickled egg from the
University of Woolongong)
-eric
On Sun, Oct 31, 2010 at 3:52 AM, roger peppe <rogpeppe@gmail.com> wrote:
> if you hate misinformation, why not provide some correct information to
> counter it? i'd hazard a guess that nobody other than you in this thread
> knows what you mean by "deadly embrace".
>
> On 31 Oct 2010 05:47, "Bruce Ellis" <bruce.ellis@gmail.com> wrote:
>
> good call. i just hate misinformation. if there is any more misleading
> trash i will gladly give the offender Morgan's phone number.
>
> brucee
>
> On Sat, Oct 30, 2010 at 8:08 PM, Nemo <nemo.mbox@gmail.com> wrote:
>> let's call it rumba and go on....
next prev parent reply other threads:[~2010-10-31 14:21 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 3:02 Venkatesh Srinivas
2010-10-27 4:23 ` erik quanstrom
2010-10-27 6:27 ` Bruce Ellis
2010-10-27 13:50 ` Charles Forsyth
2010-10-27 13:53 ` Gorka Guardiola
2010-10-27 13:55 ` Francisco J Ballesteros
2010-10-27 14:12 ` John Floren
2010-10-27 14:13 ` Eric Van Hensbergen
2010-10-27 14:48 ` Venkatesh Srinivas
2010-10-27 15:45 ` erik quanstrom
2010-10-27 15:54 ` Venkatesh Srinivas
2010-10-27 21:04 ` Bruce Ellis
2010-10-28 12:12 ` Charles Forsyth
2010-10-28 13:32 ` Bruce Ellis
2010-10-28 14:30 ` Gorka Guardiola
2010-10-28 14:39 ` Gorka Guardiola
2010-10-28 14:58 ` erik quanstrom
2010-10-28 14:41 ` Francisco J Ballesteros
2010-10-28 14:45 ` Eric Van Hensbergen
2010-10-28 14:56 ` Francisco J Ballesteros
2010-10-28 15:37 ` Nathaniel W Filardo
2010-10-28 15:40 ` erik quanstrom
2010-10-28 15:53 ` Francisco J Ballesteros
2010-10-28 19:17 ` Venkatesh Srinivas
2010-10-28 19:24 ` Venkatesh Srinivas
2010-10-28 20:18 ` Charles Forsyth
2010-10-28 20:32 ` Venkatesh Srinivas
2010-10-28 20:55 ` Nemo
2010-10-28 21:22 ` Venkatesh Srinivas
2010-10-28 22:17 ` Francisco J Ballesteros
2010-10-28 23:51 ` Gorka Guardiola
2010-10-29 5:37 ` Bruce Ellis
2010-10-29 7:44 ` Gorka Guardiola
2010-10-29 8:51 ` Bruce Ellis
2010-10-29 9:01 ` Charles Forsyth
2010-10-29 8:58 ` Bruce Ellis
2010-10-29 16:38 ` Charles Forsyth
2010-10-29 9:45 ` Gorka Guardiola
2010-10-29 9:56 ` Bruce Ellis
2010-10-29 16:01 ` Charles Forsyth
2010-10-29 15:58 ` Venkatesh Srinivas
2010-10-29 16:02 ` roger peppe
2010-10-29 16:17 ` Bruce Ellis
2010-10-29 16:47 ` roger peppe
2010-10-29 16:04 ` Charles Forsyth
2010-10-29 14:14 ` Eric Van Hensbergen
2010-10-29 15:21 ` roger peppe
2010-10-29 15:36 ` erik quanstrom
2010-10-29 15:39 ` Eric Van Hensbergen
2010-10-29 15:49 ` Charles Forsyth
2010-10-29 15:50 ` Eric Van Hensbergen
2010-10-29 15:59 ` Bruce Ellis
2010-10-29 16:28 ` Venkatesh Srinivas
2010-10-29 17:16 ` erik quanstrom
2010-10-29 16:47 ` David Leimbach
2010-10-29 17:13 ` Charles Forsyth
2010-10-29 17:22 ` David Leimbach
2010-10-29 17:26 ` erik quanstrom
2010-10-29 17:47 ` Bruce Ellis
2010-10-29 19:33 ` roger peppe
2010-10-29 20:27 ` Bruce Ellis
2010-10-29 20:41 ` Gorka Guardiola
2010-10-29 20:44 ` Bruce Ellis
2010-10-29 22:31 ` Bakul Shah
2010-10-29 22:39 ` roger peppe
2010-10-29 22:43 ` Bruce Ellis
2010-10-29 23:07 ` roger peppe
2010-10-29 23:28 ` Bruce Ellis
2010-10-30 9:08 ` Nemo
2010-10-31 5:39 ` Bruce Ellis
2010-10-31 8:52 ` roger peppe
2010-10-31 8:57 ` Bruce Ellis
2010-10-31 10:25 ` fgergo
2010-10-31 11:11 ` fgergo
2010-10-31 11:21 ` Bruce Ellis
2010-10-31 11:23 ` roger peppe
2010-10-31 13:06 ` Gorka Guardiola
2010-10-31 13:07 ` Gorka Guardiola
2010-10-31 13:22 ` Gorka Guardiola
2010-11-02 14:29 ` Richard Miller
2010-10-31 14:21 ` Eric Van Hensbergen [this message]
2010-10-31 22:17 ` Bruce Ellis
2010-10-31 22:32 ` EBo
2010-10-31 22:41 ` Steve Simon
2010-11-02 13:49 ` Richard Miller
2010-11-02 14:02 ` Eric Van Hensbergen
2010-10-29 18:27 ` David Leimbach
2010-10-29 17:18 ` Charles Forsyth
2010-10-29 17:17 ` erik quanstrom
2010-10-29 17:25 ` David Leimbach
2010-10-29 18:03 ` Eric Van Hensbergen
2010-10-29 18:54 ` Gorka Guardiola
2010-10-29 19:30 ` David Leimbach
2010-10-29 20:20 ` erik quanstrom
2010-10-29 15:55 ` Venkatesh Srinivas
2010-10-29 13:12 ` roger peppe
2010-10-29 13:20 ` Lucio De Re
2010-10-29 15:51 ` Charles Forsyth
2010-10-29 16:36 ` Charles Forsyth
2010-10-27 15:09 ` David Leimbach
2010-10-28 21:39 erik quanstrom
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