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From: Eric Dumazet <dada1@cosmosbay.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: getting processor numbers
Date: Tue, 03 Apr 2007 22:32:17 +0200	[thread overview]
Message-ID: <4612B9D1.4060404@cosmosbay.com> (raw)
In-Reply-To: <4612B6C1.8080509@redhat.com>

Ulrich Drepper a écrit :
> Siddha, Suresh B wrote:
>> No. Logical cpu hotplug uses these interfaces to make a cpu go offline
>> and online.
> 
> You missed my sarcasms, email is bad for conveying it.  The point is
> nobody really cares about that hotplug nonsense to have noticed the bug.
>  And still does this nonsense prevent real problems from being addressed.
> 

Please dont focus on /sys being your holy gral.

1) AFAIK /sys/devices/system/cpu was not designed to meet glibc needs.

2) Many production machines dont mount /sys at all

$ uname -r
2.6.20
$ ls -al /sys/devices/system/cpu
ls: /sys/devices/system/cpu: No such file or directory
$ grep processor /proc/cpuinfo
processor       : 0
processor       : 1


  reply	other threads:[~2007-04-03 20:32 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-03 16:54 getting processor numbers Ulrich Drepper
2007-04-03 17:30 ` linux-os (Dick Johnson)
2007-04-03 17:37   ` Ulrich Drepper
2007-04-03 17:56 ` Dr. David Alan Gilbert
2007-04-03 18:11 ` Andi Kleen
2007-04-03 17:17   ` Ulrich Drepper
2007-04-03 17:22     ` Alan Cox
2007-04-03 17:30       ` Andi Kleen
2007-04-03 20:24         ` Jeremy Fitzhardinge
2007-04-03 17:27     ` Andi Kleen
2007-04-03 17:30       ` Ulrich Drepper
2007-04-03 17:35         ` Andi Kleen
2007-04-03 17:45           ` Ulrich Drepper
2007-04-03 17:58             ` Andi Kleen
2007-04-03 18:05               ` Ulrich Drepper
2007-04-03 18:11                 ` Andi Kleen
2007-04-03 18:21                   ` Ulrich Drepper
2007-04-03 17:44         ` Siddha, Suresh B
2007-04-03 17:59           ` Ulrich Drepper
2007-04-03 19:40             ` Jakub Jelinek
2007-04-03 20:13             ` Ingo Oeser
2007-04-03 23:38               ` J.A. Magallón
2007-04-03 19:55           ` Ulrich Drepper
2007-04-03 20:13             ` Siddha, Suresh B
2007-04-03 20:19               ` Ulrich Drepper
2007-04-03 20:32                 ` Eric Dumazet [this message]
2007-04-03 20:20             ` Nathan Lynch
2007-04-03 19:15 ` Davide Libenzi
2007-04-03 19:32   ` Ulrich Drepper
2007-04-04  0:31     ` H. Peter Anvin
2007-04-04  0:35       ` Jeremy Fitzhardinge
2007-04-04  0:38         ` H. Peter Anvin
2007-04-04  5:09           ` Eric Dumazet
2007-04-04  5:16             ` H. Peter Anvin
2007-04-04  5:22               ` Jeremy Fitzhardinge
2007-04-04  5:40                 ` H. Peter Anvin
2007-04-04  5:46                   ` Eric Dumazet
2007-04-04  5:29               ` Eric Dumazet
2007-04-03 20:16 ` Andrew Morton
     [not found]   ` <4612BB89.8040102@redhat.com>
     [not found]     ` <20070403141348.9bcdb13e.akpm@linux-foundation.org>
2007-04-03 22:13       ` Ulrich Drepper
2007-04-03 22:48         ` Andrew Morton
2007-04-03 23:00           ` Ulrich Drepper
2007-04-03 23:23             ` Andrew Morton
2007-04-03 23:54               ` Ulrich Drepper
2007-04-04  2:55               ` Paul Jackson
2007-04-04  8:39               ` Oleg Nesterov
2007-04-04  9:39                 ` Ingo Molnar
2007-04-04  8:57                   ` Oleg Nesterov
2007-04-04 10:01                     ` Ingo Molnar
2007-04-04  2:58             ` Paul Jackson
2007-04-04  3:04             ` Paul Jackson
2007-04-04  2:52           ` Paul Jackson
2007-04-04  2:04   ` Paul Jackson
2007-04-04  6:47     ` Jakub Jelinek
2007-04-04  7:02       ` Paul Jackson
2007-04-04 14:51       ` Cliff Wickman

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