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From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Ramdisk Initialization Problem
Date: 24 May 2001 18:06:48 -0700	[thread overview]
Message-ID: <9ekb78$u2a$1@cesium.transmeta.com> (raw)
In-Reply-To: <l03130306b7332a134958@[209.239.217.188]>

Followup to:  <l03130306b7332a134958@[209.239.217.188]>
By author:    "Jaswinder Singh" <jaswinder.singh@3disystems.com>
In newsgroup: linux.dev.kernel
>
>     I am using kernel 2.4.1 with compressed Ramdisk on  Hitachi SH board ,
> with no battery.   When i run kernel first time , it works fine , it
> uncompress Ramdisk and i get my shell prompt .    But when i restart it
> second time (with out  removing power cable ) kernel dies when
> uncompressing Ramdisk.   But , if i remove my power supply for more than 5
> minutes , and then i start again , it works again.   It seems that in 2.4.1
> and/or later versions has  Ramdisk Initailization or uninitialised memory
> problem. But i faced no problem  with 2.2.12 kernel.   Thank you,  
> 
> Best Regards,   Jaswinder (and his wonder machine).
> 

First of all, try the latest kernel if you are going to report a bug.

For the kernel people, this is classic evidence of relying on
uninitialized memory; the "few minutes" is roughly how long it takes
modern SDRAM to *reliably* discharge.

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt

  reply	other threads:[~2001-05-25  1:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-24 21:15 Jaswinder Singh
2001-05-25  1:06 ` H. Peter Anvin [this message]
2001-05-25  1:51   ` Jaswinder Singh

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