From: Ralf Baechle <ralf@oss.sgi.com>
To: Jun Sun <jsun@mvista.com>
Cc: jim@jtan.com, "H . J . Lu" <hjl@lucon.org>, linux-mips@oss.sgi.com
Subject: Re: test machines; illegal instructions
Date: Sun, 7 Oct 2001 03:39:10 +0200 [thread overview]
Message-ID: <20011007033910.C4228@dea.linux-mips.net> (raw)
In-Reply-To: <3BBDF25F.1A0F2283@mvista.com>; from jsun@mvista.com on Fri, Oct 05, 2001 at 10:48:15AM -0700
On Fri, Oct 05, 2001 at 10:48:15AM -0700, Jun Sun wrote:
> If your cpu does not have ll/sc instruction, you might be suffering the famous
> sysmips() problem. The latest kernel should get you going.
>
> There is also FPU emulation bug which may cause this problem, but that only
> happens on heavy context switches and FPU usages.
I've checked in a major bundle of FPU emu fixes last week. The kernel
fp code should now produce accurate results and handle exceptions and
the Flush to Zero bit as per spec.
I have a load more fp fixes pending which I'll checking as soon as I'm
absolutely convinced they'll do the right thing.
Ralf
next prev parent reply other threads:[~2001-10-07 1:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-27 2:12 test machines; illegal instructions Jim Paris
2001-09-27 3:26 ` H . J . Lu
2001-10-04 5:16 ` Jim Paris
2001-10-05 17:48 ` Jun Sun
2001-10-07 1:39 ` Ralf Baechle [this message]
2001-10-07 17:03 ` Jun Sun
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