From: "Jim Hull" <jim.hull@hp.com>
To: "'John David Anglin'" <dave@hiauly1.hia.nrc.ca>
Cc: <randolph@tausq.org>, <parisc-linux@parisc-linux.org>
Subject: RE: [parisc-linux] Re: floating point exception error
Date: Fri, 10 Jan 2003 14:30:39 -0800 [thread overview]
Message-ID: <005c01c2b8f7$e79cc8c0$6763f40f@cup.hp.com> (raw)
In-Reply-To: <200301101848.h0AImToB004181@hiauly1.hia.nrc.ca>
David, you wrote:
> I looked at the assembly code. The original test was done under hpux.
> I see that the call to ull2dbl has been optimized out of the loop. It
> is just called once. So, the code probably is trapping there as well.
Ok, that's good to hear. Your info, along with Randolph's info that it
traps on the 8500, 8600, and 8700 CPUs, leads me to the same conclusion
as Randolph came to. It looks like there's something wrong with the
fcnv emulation in the linux kernel's emulation handler, even though it
was derived from the hpux handler, where everything appears to work
fine.
-- Jim
next prev parent reply other threads:[~2003-01-10 22:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-11 21:13 [parisc-linux] ["CSA Test Drive" <TestDrive@compaq.com>] FW: Some issues Bdale Garbee
2002-12-11 22:03 ` John David Anglin
2002-12-11 22:44 ` Carlos O'Donell
2002-12-11 23:05 ` John David Anglin
2002-12-11 23:17 ` Carlos O'Donell
2002-12-12 6:50 ` Randolph Chung
2002-12-12 12:15 ` Matthew Wilcox
2003-01-10 7:54 ` [parisc-linux] Re: floating point exception error Randolph Chung
2003-01-10 18:08 ` Jim Hull
2003-01-10 18:35 ` Randolph Chung
2003-01-10 18:48 ` John David Anglin
2003-01-10 22:30 ` Jim Hull [this message]
2003-01-11 6:16 ` Randolph Chung
2003-01-11 7:10 ` Grant Grundler
2003-01-11 18:31 ` John David Anglin
2003-01-12 8:37 ` Randolph Chung
2003-01-13 15:58 ` jsoe0708
2003-01-13 16:57 ` Randolph Chung
2003-01-13 17:16 ` jsoe0708
2003-01-13 17:16 ` Randolph Chung
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