From: William Lee Irwin III <wli@holomorphy.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Anton Blanchard <anton@samba.org>,
linux-kernel@vger.kernel.org,
viro@parcelfarce.linux.theplanet.co.uk
Subject: Re: /proc/sys/kernel/pid_max issues
Date: Sun, 12 Sep 2004 03:43:14 -0700 [thread overview]
Message-ID: <20040912104314.GN2660@holomorphy.com> (raw)
In-Reply-To: <20040912101350.GA13164@elte.hu>
On Sun, Sep 12, 2004 at 12:13:50PM +0200, Ingo Molnar wrote:
> in fact we can now merge the max_limit and pid_max checks - see the
> attached updated patch.
> fix pid_max handling. Wrap around correctly.
> Signed-off-by: William Lee Irwin III <wli@holomorphy.com>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
I like the update. But I see other issues. For instance (also untested):
pid wrapping doesn't honor RESERVED_PIDS.
Index: mm4-2.6.9-rc1/kernel/pid.c
===================================================================
--- mm4-2.6.9-rc1.orig/kernel/pid.c 2004-09-12 03:26:07.781592064 -0700
+++ mm4-2.6.9-rc1/kernel/pid.c 2004-09-12 03:26:50.063164288 -0700
@@ -128,7 +128,10 @@
map = next_free_map(map, &max_steps);
if (!map)
goto failure;
- offset = 0;
+ else if (map != pidmap_array)
+ offset = 0;
+ else
+ offset = RESERVED_PIDS;
}
/*
* Find the next zero bit:
next prev parent reply other threads:[~2004-09-12 10:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-12 8:56 /proc/sys/kernel/pid_max issues Anton Blanchard
2004-09-12 9:36 ` William Lee Irwin III
2004-09-12 9:51 ` Ingo Molnar
2004-09-12 9:58 ` William Lee Irwin III
2004-09-12 10:10 ` William Lee Irwin III
2004-09-12 10:13 ` Ingo Molnar
2004-09-12 10:43 ` William Lee Irwin III [this message]
2004-09-12 10:45 ` William Lee Irwin III
2004-09-12 11:08 ` William Lee Irwin III
2004-09-12 11:20 ` Ingo Molnar
2004-09-12 17:13 ` William Lee Irwin III
2004-09-12 18:02 ` Chris Wedgwood
2004-09-12 23:06 ` William Lee Irwin III
2004-09-13 1:46 ` [pidhashing] rewrite alloc_pidmap() William Lee Irwin III
2004-09-12 9:39 ` /proc/sys/kernel/pid_max issues Ingo Molnar
2004-09-12 9:43 ` William Lee Irwin III
2004-09-12 12:18 ` Arjan van de Ven
2004-09-12 12:30 ` Anton Blanchard
2004-09-12 12:44 ` Arjan van de Ven
2004-09-12 13:34 ` Anton Blanchard
2004-09-12 13:41 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2004-09-13 3:20 Albert Cahalan
2004-09-13 7:42 ` William Lee Irwin III
2004-09-13 14:11 ` Albert Cahalan
2004-09-13 14:27 ` William Lee Irwin III
2004-09-13 14:51 ` Herbert Poetzl
2004-09-14 2:13 ` William Lee Irwin III
2004-09-23 13:13 ` Pavel Machek
2004-09-24 16:02 ` Martin Mares
2004-09-23 13:11 ` Pavel Machek
2004-09-13 7:57 ` Ingo Molnar
2004-09-13 13:54 ` Albert Cahalan
2004-09-13 14:24 ` William Lee Irwin III
2004-09-13 14:54 ` Albert Cahalan
2004-09-14 2:02 ` William Lee Irwin III
2004-09-14 15:32 ` Ingo Molnar
2004-09-18 18:32 ` Pavel Machek
2004-09-23 13:18 ` Pavel Machek
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