From: Jack Steiner <steiner@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Re: [Linux-ia64] Re: Lockups on 2.4.1
Date: Wed, 21 Feb 2001 19:48:14 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005183@msgid-missing> (raw)
> Anyway, I have ITPs connected to the IBM hardware and have noticed that
> when the lockup occurs, and we lose video, at least one of the CPUs is
> executing in flush_tlb_no_ptcg() or handle_IPI(), in the 'do' loop where
> TLB
> entries are being purged. What I have observed is that the end address and
> the start address are in completely different regions. Usually, the start
> address
> is in region register 1 (address of 0x2000XXXXXXXXXXXX) and the end address
> is in region register 3 (address of 0x6000XXXXXXXXXXXX). I don't know if
> this
> is the same problem I am seeing on the Lion, but I plan to connect and ITP
> and
> a serial console (although we haven't been able to get one to work yet on
> the
> Lion with BIOS 71) to see if the symptoms are the same.
FWIW, we have seen EXACTLY the same hang running here on our system.
The start/end addresses for the purge cross region boundaries.
We are running a 2.4.0 kernel.
--
Thanks
Jack Steiner (651-683-5302) (vnet 233-5302) steiner@sgi.com
next reply other threads:[~2001-02-21 19:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-21 19:48 Jack Steiner [this message]
2001-02-21 21:30 ` Re: [Linux-ia64] Re: Lockups on 2.4.1 Broadfoot, Ken P
2001-02-21 21:45 ` H . J . Lu
2001-02-21 22:38 ` Chris McDermott
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