From: Grant Grundler <iod00d@hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: user-space unaligned accesses
Date: Wed, 08 Oct 2003 21:46:18 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106564957802126@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106562414203331@msgid-missing>
On Wed, Oct 08, 2003 at 08:42:00AM -0600, Bjorn Helgaas wrote:
> ...
> The ia64 architecture does a tty_write
> on a userspace unaligned access. Not only is this extremenly annoying,
> it's also very broken since the tty may well be suspended etc etc.
> Doing a printk on such an access by default is very broken already,
> lets not make it worse
This was beat to death on linux-ia64 already where davidm and davem
decided to disagree on the utility of printing unaligned accesses
to the tty.
davidm wrote:
| At the moment, there are two ways to control the unaligned message printing:
|
| - use the dmesg command to lower the printing threshold below KERN_WARNING
| ("dmesg -n4", IIRC)
|
| - use prctl --unalign=silent to turn off unaligned printing for a
| particular task and its children
Running prctl on relevant gettys at boot time would have the same effect.
grant
next prev parent reply other threads:[~2003-10-08 21:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-08 14:42 user-space unaligned accesses Bjorn Helgaas
2003-10-08 21:46 ` Grant Grundler [this message]
2003-10-08 22:54 ` Bjorn Helgaas
2003-10-08 23:36 ` David Mosberger
2003-10-09 13:53 ` Bjorn Helgaas
2003-10-11 23:22 ` Micah Parrish
2003-10-13 23:56 ` David Mosberger
2003-10-13 23:59 ` Duraid Madina
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