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Date:      Fri, 19 Oct 2001 09:45:43 -0700 (PDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Nick Tonkin <nick@rlnt.net>
Cc:        freebsd-hardware@FreeBSD.org
Subject:   RE: weird error message from usb0
Message-ID:  <XFMail.011019094543.jhb@FreeBSD.org>
In-Reply-To: <Pine.BSF.4.21.0110190920240.81777-100000@world.tonkinresolutions.com>

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On 19-Oct-01 Nick Tonkin wrote:
> 
> On Fri, 19 Oct 2001, John Baldwin wrote:
> 
>> 
>> On 19-Oct-01 Nick Tonkin wrote:
>> > 
>> > Hi,
>> > 
>> > While trying to get my laptop working yesterday the usb drive panicked
>> > (I guess) and began spewing error messages.
>> > 
>> > I was surprised to notice that about one in every 20 or so had a typo??!!
>> > 
>> >> > usb0: host coftroller halted <---
>> >> > usb0: host controller halted
>> >> > usb0: host controller halte` <---
>> >> > usb0: host controller halted
>> > 
>> > 
>> > Once I rebooted this problem ceased, but I thought someone might like to
>> > know.
>> 
>> n = 0x6e and f = 0x66, which means that there is a one-bit error there (0x8)
>> d = 0x64 and ` = 0x60, which is also a one-bit error (0x4) (albeit a
>> different
>> bit).
>> 
>> This is most likely due to memory errors.  They might be transient, but you
>> probably have bad memory.
>> 
> 
> Yikes! I assume it would support that theory that I also couldn't compile
> a kernel yesterday, for a while, with weird errors (from random
> code) different each time ... and then, after a while, could?

Umm, yes.

> How can I test the RAM? It's 512MB in two dimms (I think) in a Dell
> Inspiron 7500.

You need more proof? :)  Best get yourself to Fry's, CompUSA, or some other
retailer and buy some memory. :)  One test is to buy new memory with a return
policy.  If the system works fine with the new memory, you know the old is bad.
If the new memory doesn't work, take it back in for your refund.

> Thanks much,
> Nick

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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