From: Ronald G Minnich <rminnich@lanl.gov>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] quantity vs. quality
Date: Sat, 10 Jun 2006 17:13:45 -0600 [thread overview]
Message-ID: <448B5229.8050008@lanl.gov> (raw)
In-Reply-To: <20060610004529.GD2291@submarine>
A fork fails.
Which would you rather have the kernel do: panic? Lock up (as in the old
days)? Or handle it gracefully.
Your fossil fills up completely. Which would you rather have it do: blow
up on boot, so you can no longer boot your system (current behavior); or
manage disk space so that, even in the worst of all cases, you can still
get booted enough to try to clean up (most unix file systems since 1980
or so).
Nobody's arguing for "best enemy of good". All we're trying to say is,
that there are times a library should not make the decision to
sysfatal() on you. And, there are many real world examples of resource
exhaustion where continuing to run is better than dying. It's not always
better to run, and it may not be better to run in most cases, but
sometimes it is really better not to have the library pre-emptively
decide to exit; in fact, you want a reasonable return value.
I do believe that the shell can handle the case of some types of
resource exhaustion:
switch(forkid = fork()){
case -1:
Xerror("try again");
break;
would you want rc to exit in this case?
ron
next prev parent reply other threads:[~2006-06-10 23:13 UTC|newest]
Thread overview: 229+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-07 17:58 [9fans] gcc on plan9 Corey
2006-06-07 18:24 ` Roman Shaposhnick
2006-06-07 18:50 ` Ronald G Minnich
2006-06-07 18:55 ` William Josephson
2006-06-07 20:12 ` Ronald G Minnich
2006-06-07 20:20 ` Roman Shaposhnick
2006-06-07 20:42 ` Ronald G Minnich
2006-06-07 20:44 ` William Josephson
2006-06-07 21:00 ` Ronald G Minnich
2006-06-07 19:05 ` Roman Shaposhnick
2006-06-07 20:13 ` Ronald G Minnich
2006-06-07 20:48 ` Roman Shaposhnick
2006-06-07 21:04 ` Ronald G Minnich
2006-06-08 6:42 ` Roman Shaposhnik
2006-06-08 7:00 ` Iruatã Souza (muzgo)
2006-06-07 19:48 ` Corey
2006-06-07 20:16 ` Ronald G Minnich
2006-06-07 20:26 ` Roman Shaposhnick
2006-06-07 20:43 ` Ronald G Minnich
2006-06-08 5:49 ` lucio
2006-06-07 18:57 ` Francisco J Ballesteros
2006-06-07 19:55 ` Corey
2006-06-07 20:46 ` rog
2006-06-07 21:07 ` Corey
2006-06-07 21:16 ` Christoph Lohmann
2006-06-07 21:25 ` Rodolfo (kix)
2006-06-07 21:50 ` Corey
2006-06-07 21:54 ` David Leimbach
2006-06-07 21:56 ` Ronald G Minnich
2006-06-07 22:06 ` Lluís Batlle i Rossell
2006-06-07 22:16 ` David Leimbach
2006-06-07 22:31 ` Francisco J Ballesteros
2006-06-07 22:33 ` Ronald G Minnich
2006-06-08 9:44 ` Victor Nazarov
2006-06-09 21:13 ` Roman Shaposhnick
2006-06-08 1:28 ` quanstro
2006-06-09 13:12 ` Lluís Batlle
2006-06-09 13:21 ` quanstro
2006-06-09 13:47 ` Lluís Batlle
2006-06-07 23:04 ` geoff
2006-06-07 23:10 ` Steve Simon
2006-06-08 0:22 ` Bakul Shah
2006-06-08 0:27 ` geoff
2006-06-08 3:31 ` Ronald G Minnich
2006-06-08 15:04 ` David Leimbach
2006-06-08 15:20 ` Ronald G Minnich
2006-06-07 23:15 ` andrey mirtchovski
2006-06-08 0:17 ` geoff
2006-06-09 21:15 ` Roman Shaposhnick
2006-06-09 21:26 ` andrey mirtchovski
2006-06-09 21:27 ` andrey mirtchovski
2006-06-09 21:34 ` Roman Shaposhnick
2006-06-09 21:38 ` andrey mirtchovski
2006-06-09 21:44 ` andrey mirtchovski
2006-06-10 6:57 ` "Nils O. Selåsdal"
2006-06-08 1:58 ` Latchesar Ionkov
2006-06-08 0:53 ` geoff
2006-06-08 1:07 ` Latchesar Ionkov
2006-06-08 1:15 ` quanstro
2006-06-08 15:02 ` David Leimbach
2006-06-09 4:04 ` quanstro
2006-06-08 1:22 ` geoff
2006-06-08 1:25 ` Latchesar Ionkov
2006-06-09 21:21 ` Roman Shaposhnick
2006-06-09 21:27 ` Roman Shaposhnick
2006-06-08 14:59 ` David Leimbach
2006-06-09 4:05 ` quanstro
2006-06-08 1:39 ` [9fans] quantity vs. quality Lyndon Nerenberg
2006-06-08 3:05 ` Dan Cross
2006-06-08 3:44 ` Joel Salomon
2006-06-08 7:03 ` Roman Shaposhnik
2006-06-09 22:03 ` Roman Shaposhnick
2006-06-09 22:44 ` David Leimbach
2006-06-09 22:46 ` quanstro
2006-06-09 22:51 ` Latchesar Ionkov
2006-06-09 22:55 ` quanstro
2006-06-09 23:19 ` Latchesar Ionkov
2006-06-09 23:29 ` quanstro
2006-06-10 1:57 ` Latchesar Ionkov
2006-06-09 23:51 ` quanstro
2006-06-10 0:10 ` Roman Shaposhnick
2006-06-10 2:31 ` Latchesar Ionkov
2006-06-10 0:45 ` Roman Shaposhnick
2006-06-10 3:01 ` Latchesar Ionkov
2006-06-10 0:52 ` quanstro
2006-06-10 1:04 ` Roman Shaposhnick
2006-06-10 23:13 ` Ronald G Minnich [this message]
2006-06-11 0:44 ` quanstro
2006-06-11 5:08 ` lucio
2006-06-11 10:09 ` quanstro
2006-06-11 12:00 ` lucio
2006-06-11 22:59 ` quanstro
2006-06-11 23:26 ` geoff
2006-06-12 3:45 ` Paul Lalonde
2006-06-12 20:16 ` Ronald G Minnich
2006-06-12 20:23 ` Roman Shaposhnick
2006-06-12 20:56 ` Ronald G Minnich
2006-06-12 21:09 ` Victor Nazarov
2006-06-13 0:05 ` Roman Shaposhnik
2006-06-12 21:15 ` Francisco J Ballesteros
2006-06-13 12:08 ` rog
2006-06-13 16:34 ` Skip Tavakkolian
2006-06-13 21:35 ` "Nils O. Selåsdal"
2006-06-14 22:09 ` Roman Shaposhnick
2006-06-15 15:46 ` Victor Nazarov
2006-06-11 5:42 ` Russ Cox
2006-06-11 10:08 ` quanstro
2006-06-12 1:03 ` Roman Shaposhnik
2006-06-10 23:05 ` Ronald G Minnich
2006-06-11 0:00 ` quanstro
2006-06-10 0:24 ` andrey mirtchovski
2006-06-10 0:36 ` quanstro
2006-06-10 2:27 ` Latchesar Ionkov
2006-06-10 0:23 ` quanstro
2006-06-10 0:41 ` Paul Lalonde
2006-06-10 0:59 ` quanstro
2006-06-10 1:15 ` Paul Lalonde
2006-06-10 5:19 ` Bruce Ellis
2006-06-10 2:51 ` Latchesar Ionkov
2006-06-10 0:45 ` quanstro
2006-06-10 3:10 ` Latchesar Ionkov
2006-06-10 0:53 ` quanstro
2006-06-10 23:06 ` Ronald G Minnich
2006-06-10 23:15 ` geoff
2006-06-11 2:58 ` jmk
2006-06-10 23:04 ` Ronald G Minnich
2006-06-11 0:05 ` quanstro
2006-06-10 23:03 ` Ronald G Minnich
2006-06-09 23:25 ` Ronald G Minnich
2006-06-09 23:38 ` David Leimbach
2006-06-09 23:45 ` andrey mirtchovski
2006-06-09 23:46 ` Paul Lalonde
2006-06-10 23:03 ` Ronald G Minnich
2006-06-10 23:02 ` Ronald G Minnich
2006-06-11 0:12 ` quanstro
2006-06-11 2:20 ` Ronald G Minnich
2006-06-11 22:31 ` David Leimbach
2006-06-10 0:28 ` Roman Shaposhnick
2006-06-09 21:29 ` Roman Shaposhnick
2006-06-09 21:34 ` andrey mirtchovski
2006-06-08 1:49 ` [9fans] gcc on plan9 Ignacio Torres Masdeu
2006-06-08 14:10 ` David Leimbach
2006-06-09 4:09 ` quanstro
2006-06-09 5:25 ` David Leimbach
2006-06-07 22:39 ` Corey
2006-06-07 22:49 ` Paul Lalonde
2006-06-07 23:17 ` Corey
2006-06-07 23:37 ` Paul Lalonde
2006-06-08 0:50 ` quanstro
2006-06-08 1:16 ` John Barham
2006-06-08 14:51 ` David Leimbach
2006-06-09 4:49 ` ems
2006-06-09 12:07 ` quanstro
2006-06-09 19:17 ` Roman Shaposhnick
2006-06-09 21:27 ` Bakul Shah
2006-06-09 21:33 ` Francisco J Ballesteros
2006-06-09 21:39 ` quanstro
2006-06-09 21:56 ` Francisco J Ballesteros
2006-06-09 22:01 ` quanstro
2006-06-09 22:17 ` Francisco J Ballesteros
2006-06-09 22:35 ` quanstro
2006-06-09 22:22 ` Bakul Shah
2006-06-09 22:30 ` quanstro
2006-06-09 23:22 ` Bakul Shah
2006-06-10 13:51 ` Francisco J Ballesteros
2006-06-10 23:21 ` Ronald G Minnich
2006-06-11 0:07 ` LiteStar numnums
2006-06-10 0:00 ` Harri Haataja
2006-06-10 0:03 ` Bruce Ellis
2006-06-10 1:00 ` Roman Shaposhnick
2006-06-10 4:37 ` Iruatã Souza (muzgo)
2006-06-12 0:35 ` Roman Shaposhnik
2006-06-09 21:43 ` quanstro
2006-06-10 12:43 ` rog
2006-06-07 22:56 ` Christoph Lohmann
2006-06-07 23:08 ` Dan Cross
2006-06-07 23:32 ` Federico G. Benavento
2006-06-07 23:48 ` Dan Cross
2006-06-08 0:32 ` Corey
2006-06-08 1:04 ` jmk
2006-06-08 3:35 ` Ronald G Minnich
2006-06-08 3:51 ` Ronald G Minnich
2006-06-08 4:07 ` Roman Shaposhnik
2006-06-08 5:19 ` Ronald G Minnich
2006-06-08 6:07 ` Federico G. Benavento
2006-06-08 17:45 ` Micah Stetson
2006-06-08 18:54 ` Ronald G Minnich
2006-06-08 18:55 ` Iruatã Souza (muzgo)
2006-06-08 18:56 ` andrey mirtchovski
2006-06-08 19:01 ` Iruatã Souza (muzgo)
2006-06-09 19:56 ` Roman Shaposhnick
2006-06-09 22:19 ` quanstro
2006-06-09 23:19 ` Ronald G Minnich
2006-06-08 4:11 ` Paul Lalonde
2006-06-08 5:25 ` ems
2006-06-08 5:43 ` Simon Williams
2006-06-08 6:09 ` Bruce Ellis
2006-07-16 15:17 ` ASCII Glenda (was Re: [9fans] gcc on plan9) csant
2006-07-16 22:17 ` e.c.sharpe
2006-07-16 22:37 ` Jack Johnson
2006-07-17 8:35 ` Rodolfo (kix)
2006-06-08 1:06 ` [9fans] gcc on plan9 geoff
2006-06-08 1:21 ` quanstro
2006-06-08 10:15 ` Victor Nazarov
2006-06-08 9:40 ` Lluís Batlle
2006-06-08 15:55 ` Corey
2006-06-08 22:48 ` Fred Wade
2006-06-08 23:08 ` Roman Shaposhnick
2006-06-08 23:51 ` Corey
2006-06-07 20:46 ` Latchesar Ionkov
2006-06-07 19:07 ` Roman Shaposhnick
2006-06-07 19:17 ` Latchesar Ionkov
2006-06-07 19:26 ` Roman Shaposhnick
2006-06-07 19:35 ` Brantley Coile
2006-06-07 20:15 ` Ronald G Minnich
2006-06-07 20:32 ` Roman Shaposhnick
2006-06-07 19:47 ` Latchesar Ionkov
2006-06-07 20:00 ` Corey
2006-06-07 20:13 ` Roman Shaposhnick
2006-06-07 20:40 ` Ronald G Minnich
2006-06-08 6:49 ` Roman Shaposhnik
2006-06-07 21:21 ` Christoph Lohmann
2006-06-07 21:49 ` Ronald G Minnich
2006-06-07 22:50 ` Dan Cross
2006-06-08 7:30 [9fans] quantity vs. quality cej
2006-06-08 9:32 ` Lluís Batlle
2006-06-08 15:29 ` David Leimbach
2006-06-08 15:43 ` jmk
2006-06-09 6:01 cej
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