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From: "Christopher S. Aker" <caker@theshore.net>
To: roland <for_spam@gmx.de>, Blaisorblade <blaisorblade_spam@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net,
	Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Subject: Re: [uml-devel] Updated token-limiter patch, was 2.6.9-bb3 creates zombie threads in SKAS
Date: Tue, 23 Nov 2004 01:28:23 -0600	[thread overview]
Message-ID: <007f01c4d12e$05d6f1d0$0201a8c0@hawk> (raw)
In-Reply-To: 050101c4d0ee$d68041a0$2000000a@schlepptopp

> > > Btw, question: what about your I/O token limiter? Actively using it? Could
> > > start being worked on for merge (there is at least one bug-report on it by
> > > "roland" on a strange but valid test-case).
> see http://sourceforge.net/mailarchive/message.php?msg_id=8560363
>
> that`s probably just a minor one.
>
> roland

From that post:

> ps:
> the token limiter seems to have a little bug:
> set token_refill=1
> do a "dd if=/dev/zero of=test.dat bs=1024k count=whatever"
> then "sync".
> for me, io isn`t limited here - io_tokens just becomes negative - nothing more.
> ok - io_refill=1 is no "real world" value anyway - so not really important to be
fixed - but interesting :)

I see.  nanosleep doesn't accept an tv_nsec value over 999999999, so there's a simple
fix in this patch:

http://www.theshore.net/~caker/uml/patches/token-limiter-v2.patch

This patch also includes the proc-io_status patch.  It's against 2.6.9, but applies
to 2.4-um as well.

-Chris



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  reply	other threads:[~2004-11-23  7:21 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <000901c4d0e1$e7f998d0$0201a8c0@hawk>
2004-11-22 22:46 ` [uml-devel] Re: 2.6.9-bb3 creates zombie threads in SKAS Blaisorblade
2004-11-22 23:33   ` Christopher S. Aker
2004-11-22 23:56     ` roland
2004-11-23  7:28       ` Christopher S. Aker [this message]
2004-11-23 20:10         ` [uml-devel] Updated token-limiter patch, was " Blaisorblade
2004-11-23 14:48   ` [uml-devel] " Bodo Stroesser
2004-11-23 17:49   ` Christopher S. Aker
2004-11-23 17:53     ` dopez
2004-11-23 19:30       ` Blaisorblade
2004-11-23 18:22     ` Blaisorblade
2004-11-23 18:29       ` Christopher S. Aker
2004-11-30 18:55     ` Christopher S. Aker
2004-11-30 19:23       ` Bodo Stroesser
2004-11-30 20:59         ` Christopher S. Aker

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