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FPU emul and segmentation fault bug

To: linux-mips@oss.sgi.com
Subject: FPU emul and segmentation fault bug
From: Jun Sun <jsun@mvista.com>
Date: Fri, 22 Feb 2002 17:49:49 -0800
Sender: owner-linux-mips@oss.sgi.com
I remember a while back we had a problem with FPU emulation code which causes
a segmentation fault.  (Perhaps another symptom is bus error, but I am not
100% sure).

Apparently this problem is fixed in the recent kernel.  However, it shows up
again in SMP mode.

Does anybody remember details of the problem and the fix?  I am afraid maybe
something we did there is not SMP safe.

Thanks.

Jun

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