Date: Wed, 26 Mar 2014 15:00:55 -0400 From: John Baldwin <jhb@freebsd.org> To: Adrian Chadd <adrian@freebsd.org> Cc: "freebsd-mobile@freebsd.org" <freebsd-mobile@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, Konstantin Belousov <kib@freebsd.org>, Bruce Evans <bde@freebsd.org>, Bruce Evans <brde@optusnet.com.au>, Jung-uk Kim <jkim@freebsd.org> Subject: Re: signal 8 (floating point exception) upon resume Message-ID: <201403261500.55551.jhb@freebsd.org> In-Reply-To: <201403261343.22370.jhb@freebsd.org> References: <CAJ-Vmo=29BUP7JREe%2BK%2B8zOZNVt2LttjTB2byB0AA2jnCKnPSw@mail.gmail.com> <CAJ-VmokcE06B6B-81r88wHKf=3Ao5VmMo3CYaJmP=SbMU6uKPQ@mail.gmail.com> <201403261343.22370.jhb@freebsd.org>
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On Wednesday, March 26, 2014 1:43:22 pm John Baldwin wrote: > On Tuesday, March 25, 2014 5:38:50 pm Adrian Chadd wrote: > > On 25 March 2014 12:46, John Baldwin <jhb@freebsd.org> wrote: > > > On Sunday, March 23, 2014 4:41:24 pm Adrian Chadd wrote: > > >> [snip] > > >> > > >> Hi, > > >> > > >> As part of this thread, a whole lot of stuff was thrown around to try > > >> and fix / improve the correctness of this. > > >> > > >> But it still happens to me in -HEAD i386. I updated to r263418 and > > >> it's now doing it around 30-50% of the time I resume. > > > > > > Yes, nothing has changed in HEAD. > > > > > >> So, since I really am trying to avoid getting neck deep in learning > > >> (by myself) a new thing right now, would someone be willing to help me > > >> through the process of (a) learning how this is all supposed to work > > >> (which thanks to jhb and bde, I think I've learnt from the posts in > > >> this thread) and (b) some things to try out? I'll be able to report > > >> the results of this pretty quickly. > > > > > > You can try www.freebsd.org/~jhb/patches/i386_fpu_suspend2.patch. You > > > could have tried the first patch I posted here earlier when I first > > > posted it as well. :) > > > > There was a lot of chatter, I thought it was prudent to let it all > > settle before jumping in. > > > > Anyway: > > You do understand C well enough to fix simple typos? I don't have any > i386 machines around, but I'll work on cross-building. i386_fpu_suspend3.patch at the same URL builds for me. -- John Baldwin
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