From: Paul Mackerras <paulus@samba.org>
To: Ian Romanick <idr@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: Special handling of sysfs device resource files?
Date: Wed, 12 Apr 2006 14:45:34 +1000 [thread overview]
Message-ID: <17468.34286.730652.585388@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <443C1ECA.1040308@us.ibm.com>
Ian Romanick writes:
> This seems to mostly work, but I am having one problem. I map the
> region by opening the file with O_RDWR, then mmap with
> (PROT_READ|PROT_WRITE) and MAP_SHARED. In all cases, the open and mmap
> succeed. However, for I/O BARs, the resulting pointer from mmap is
> invalid. Any access to it results in a segfault and GDB says it's "out
> of range".
On which architecture(s)?
Paul.
next prev parent reply other threads:[~2006-04-12 4:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-11 21:25 Ian Romanick
2006-04-11 23:59 ` Ian Romanick
2006-04-12 17:14 ` Jesse Barnes
2006-04-12 17:20 ` Jesse Barnes
2006-04-12 4:45 ` Paul Mackerras [this message]
2006-04-12 15:06 ` Ian Romanick
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