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From: Charles Forsyth <forsyth@terzarima.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] plan 9 overcommits memory?
Date: Mon,  3 Sep 2007 23:43:57 +0100	[thread overview]
Message-ID: <ce324e193a5fea1bc0a36a914169c807@terzarima.net> (raw)
In-Reply-To: <e6313e2b9e0fa74be448bcec6c235a88@coraid.com>

> to any process.  suppose i start a program that allocates 8k but between
> the malloc and the memset, another program uses the last available
> page in memory, then my original program faults.

yes, and you'll always have to deal with that in some form or another.
i've started a program, it allocates some memory, is guaranteed to have it (unlike the current system),
but later, some other program allocates enough memory that mine can't get
any more, memory that mine needs to finish (perhaps during an output phase).
my original program fails, even though the system guarantees physical memory
for all virtual memory allocations.



  reply	other threads:[~2007-09-03 22:43 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-03  3:38 geoff
2007-09-03  5:35 ` Scott Schwartz
2007-09-03  6:05   ` Uriel
2007-09-03 13:33   ` erik quanstrom
2007-09-03 17:09     ` john
2007-09-03 17:17       ` Gorka Guardiola
2007-09-03 17:25         ` Francisco J Ballesteros
2007-09-03 17:30         ` john
2007-09-03 19:47           ` Charles Forsyth
2007-09-03 19:46         ` Uriel
2007-09-03 19:54           ` Charles Forsyth
2007-09-03 19:54             ` Uriel
2007-09-03 20:34               ` geoff
2007-09-03 20:16             ` erik quanstrom
2007-09-03 17:32       ` erik quanstrom
2007-09-03 17:39         ` Francisco J Ballesteros
2007-09-03 17:43         ` john
2007-09-03 17:45           ` john
2007-09-03 19:52             ` Charles Forsyth
2007-09-05  8:33         ` sqweek
2007-09-04  8:48       ` Douglas A. Gwyn
2007-09-03 18:13   ` geoff
2007-09-03 20:17     ` erik quanstrom
2007-09-03 20:48       ` geoff
2007-09-03 22:01         ` erik quanstrom
2007-09-03 22:43           ` Charles Forsyth [this message]
2007-09-03 23:51             ` erik quanstrom
2007-09-04  0:04               ` Charles Forsyth
2007-09-04 14:44                 ` erik quanstrom
2007-09-04 15:07                   ` Charles Forsyth
2007-09-04 15:18                     ` ron minnich
2007-09-04 15:18                     ` Charles Forsyth
2007-09-05  8:48                       ` Douglas A. Gwyn
2007-09-05 10:53                         ` erik quanstrom
2007-09-06  8:42                           ` Douglas A. Gwyn
2007-09-06 17:15                             ` Joel C. Salomon
2007-09-06 19:38                               ` ron minnich
2007-09-06 20:18                                 ` Charles Forsyth
2007-09-06 23:37                                 ` Steve Simon
2007-09-07  3:09                                 ` Roman Shaposhnik
2007-09-07  4:09                                   ` Bruce Ellis
2007-09-07  4:25                                     ` Lyndon Nerenberg
2007-09-07  4:37                                       ` Bruce Ellis
2007-09-07  4:43                                         ` Lyndon Nerenberg
2007-09-10 15:24                                         ` roger peppe
2007-09-07 10:55                                     ` erik quanstrom
2007-09-04 23:32                     ` erik quanstrom
2007-09-03 21:16       ` Charles Forsyth
2007-09-03 21:19         ` ron minnich
2007-09-03 21:41           ` Eric Van Hensbergen
2007-09-03 21:51           ` erik quanstrom
2007-09-03 13:21 ` erik quanstrom
2007-09-03 14:01   ` Sape Mullender
2007-09-03 14:32     ` erik quanstrom
2007-09-03 15:28       ` Sape Mullender
2007-09-04  4:32         ` lucio
2007-09-04  7:23 ` Dave Eckhardt
2007-09-04  8:48 ` Douglas A. Gwyn
  -- strict thread matches above, loose matches on Subject: below --
2007-08-31 11:41 erik quanstrom
2007-09-02 21:27 ` Russ Cox
2007-09-03  0:43   ` erik quanstrom
2007-09-04  8:47     ` Douglas A. Gwyn
2007-09-04 13:39       ` David Leimbach
2007-09-04 14:41         ` erik quanstrom
2007-09-04 15:54           ` David Leimbach
2007-09-04 17:37     ` sqweek
2007-09-04 18:10       ` ron minnich
2007-09-04 18:53         ` sqweek
2007-09-03  1:23   ` Scott Schwartz
2007-09-03  1:47     ` ron minnich
2007-09-03  2:11       ` erik quanstrom
2007-09-03  2:11       ` erik quanstrom
2007-09-04  8:48         ` Douglas A. Gwyn
2007-09-03  5:28       ` Scott Schwartz

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