From: Ralf Baechle <ralf@linux-mips.org>
To: POORNIMA R <rpoornar@hotmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: [MIPS]mcheck error
Date: Fri, 17 Aug 2007 16:54:04 +0100 [thread overview]
Message-ID: <20070817155403.GA4853@linux-mips.org> (raw)
In-Reply-To: <BAY141-F39F0F707148D2899FEF184C2DF0@phx.gbl>
On Thu, Aug 16, 2007 at 01:34:13PM +0000, POORNIMA R wrote:
> I am working on MIPS architecture and my kernel version
> is linux-2.6.10 and I am a newbie to MIPS architecture.
> If I try inserting any module (.ko), I get meck exception
> due to multiple matching entries in TLB
Linux 2.6.10 is now well over 2 1/2 years old so forgive if my memory
on bugs that can cause machine checks is fading a little. You should
upgrade. REALLY.
> 1. What is the reason for multiple enteries in TLB
> due to module insertion?
A machine check exception will be generated if during a TLB lookup (for
example during instruction fetch or loading/storing the data for a load
rsp. store instruction) multiple entries match.
> 2. Should the TLB operations be performed with interrupts disabled?
Yes; the kernel does so.
Ralf
PS: Ditch that 2.6.10 antique! It belongs into a vitrine in the
MIPSonian Institude, not a life a computer system :-)
PPS: Have you considered upgrading your kernel?
prev parent reply other threads:[~2007-08-17 15:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-16 13:34 [MIPS]mcheck error POORNIMA R
2007-08-17 15:54 ` Ralf Baechle [this message]
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