Please try the enclosed patch against 2.2.14. If you need a prepatched
kernel, ask.
On Thu, Mar 30, 2000 at 03:02:17PM -0800, Sergey Osechinskiy wrote:
> Greetings to all,
>
> I am experiencing the same problem - system is getting frozen with "Stuck with TLB
>IPI wait on CPU#0" error message. I was trying rtlinux2.0-prepatched with linux2.2.13
>kernel on my dual PentiumPro 200MHz system, 256K cache, 128MB RAM, Intel Buckeye
>B440FX motherboard, no active SCSI device. Even if no rtl module is loaded, the
>system is occasionally getting stuck on TLB wait for a few minutes, then runs again
>for some time till next TLB wait and so on (given no Linux activity on the system).
>Loading rtl modules (e.g. in frank example with "make test") is freezing the system
>on TLB wait, and the system doesn't seem to come back to life in any short term.
>
> I have tried to upgrade to rtlinux2.2 (using rtlinux2.2-prepatched with linux2.2.14
>kernel) but the problem is still there. The system is getting frozen on TLB wait even
>if no rtl module is loaded and there is no user activity on Linux.
>
> Sorry, have no solution. I am going to try rtai1.2 to check if the problem is in my
>hardware.
>
> Sergey.
>
> ----- Original Message -----
> From: <[EMAIL PROTECTED]>
> To: Surya <[EMAIL PROTECTED]>
> Cc: RT-Linux <[EMAIL PROTECTED]>
> Sent: Thursday, March 30, 2000 5:35 AM
> Subject: Re: [rtl] SMP error
>
>
> >
> > Try updating to 2.2. But you can cause this warning with long RT
> > interrupt handlers or tasks. The problem is that Linux on CPU_A is
> > sending a message to Linux on CPU_B asking it to synchronize on clearing
> > the memory management TLB cache. Linux on CPU_A then waits for CPU_B to
> > ack. If CPU_B is busy doing some RT activity, it will not ack in time and
> > CPU_A will complain. If the warning is causing real problems, tell me and
> > I'll fix it: there is a easy fix, but we have not yet put it in.
> >
> > On Thu, Mar 30, 2000 at 02:09:35AM -0800, Surya wrote:
> > > Hi all,
> > > This is a repeat of my previous postings, I am still stuck with this
> > > problem.... any help/suggestion is highly regarded.
> > >
> > > My RTLinux (v2.0 + 2.2.13 kernel, Redhat6.1) system is getting stuck
> > > with "Stuck with TLB wait on CPU#0" error message. Whereas my normal SMP
> > > kernel on 2.2.10 is running properly. I got a couple of replies for my
> > > previous posting on SMP support for RTLinux saying that they are running
> > > the system successfully on a dual-processor machine. So what is causing
> > > this problem? Is it a bug in RTLinux or is it some other problem? Any
> > > suggestions. I am using Thunder 2( from Tyan) motherboard, 440LX AGP
> > > chipset dual PII 300MHz processors. Should I try another motherboard, if
> > > so which one are you using successfully.
> > >
> > > Thanx in anticipation,
> > > Surya.
> > >
> > > -- [rtl] ---
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> > > ---
> > > For more information on Real-Time Linux see:
> > > http://www.rtlinux.org/rtlinux/
> >
> > --
> > ---------------------------------------------------------
> > Victor Yodaiken
> > FSMLabs: www.fsmlabs.com www.rtlinux.com
> > FSMLabs is a servicemark and a service of
> > VJY Associates L.L.C, New Mexico.
> >
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> >
> >
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--
---------------------------------------------------------
Victor Yodaiken
FSMLabs: www.fsmlabs.com www.rtlinux.com
FSMLabs is a servicemark and a service of
VJY Associates L.L.C, New Mexico.
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