From: Martin Wilck <Martin.Wilck@fujitsu-siemens.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Software IO-TLB Kernel panic
Date: Thu, 17 May 2001 17:40:17 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005606@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005601@msgid-missing>
>
> Martin> The kernel panic occurs in map_single
> Martin> (arch/ia64/lib/swiotlb.c:171).
>
> Sounds like the driver is trying to map buffers that are bigger than
> (1 << IO_TLB_SHIFT) (currently 2KB).
I looked at the code and thought that bigger buffers than 2kB can (in
principle) be created by joining subsequent buffers.
Of course, it could happen that no such contiguous space is available.
Am I wrong ?
Martin
--
Martin Wilck <Martin.Wilck@fujitsu-siemens.com>
FSC EP PS DS1, Paderborn Tel. +49 5251 8 15113
next prev parent reply other threads:[~2001-05-17 17:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-17 11:44 [Linux-ia64] Software IO-TLB Kernel panic Martin Wilck
2001-05-17 15:00 ` David Mosberger
2001-05-17 17:40 ` Martin Wilck [this message]
2001-05-17 18:49 ` David Mosberger
2001-05-18 19:00 ` [Linux-ia64] Software IO-TLB Kernel panic - preliminary analysis Martin Wilck
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