Date: Mon, 29 Dec 2014 20:21:24 +0100 From: Marius Strobl <marius@alchemy.franken.de> To: Roger Pau =?iso-8859-1?Q?Monn=E9?= <roger.pau@citrix.com> Cc: Adrian Chadd <adrian@freebsd.org>, Roger Pau =?iso-8859-1?Q?Monn=E9?= <royger@FreeBSD.org>, "O. Hartmann" <ohartman@zedat.fu-berlin.de>, Ian Lepore <ian@freebsd.org>, FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: Re: r276200: EFI boot failure: kernel stops booting at pci0: <ACPI PCI bus> on pcib0 Message-ID: <20141229192124.GB63463@alchemy.franken.de> In-Reply-To: <20141229191242.GA63463@alchemy.franken.de> References: <CAJ-VmomfxA3Fbmfx%2B5vHHR86KsR=YMh3e=nTBTci_nNa=Pz34w@mail.gmail.com> <20141226130113.5200bfbb.ohartman@zedat.fu-berlin.de> <CAJ-Vmo=GUdB-0km4WuGbBmg-tuEebD1aAuWzGLDargUKcUffiw@mail.gmail.com> <1419621822.1018.187.camel@freebsd.org> <20141228205739.154243d8.ohartman@zedat.fu-berlin.de> <1419797387.1018.215.camel@freebsd.org> <CAJ-VmonrSNYpnUpY=mn2HWmJU%2B_85Tny8HBgnWVL_p8OEe8M_A@mail.gmail.com> <54A13DDB.2040206@FreeBSD.org> <54A18780.7080601@citrix.com> <20141229191242.GA63463@alchemy.franken.de>
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On Mon, Dec 29, 2014 at 08:12:42PM +0100, Marius Strobl wrote: > On Mon, Dec 29, 2014 at 05:55:28PM +0100, Roger Pau Monné wrote: > > El 29/12/14 a les 12.41, Roger Pau Monné ha escrit: > > > Hello, > > > > > > Sorry for not noticing this earlier, I've been without a computer for > > > some days. Do you get a panic message, or the system just freezes? > > > > > > Can you please post the full boot output with boot_verbose enabled? > > > > I'm not able to reproduce the problem with Qemu and OVMF, and I don't > > have any box right now that uses UEFI. > > > > I'm guessing that this is due to some memory reservation conflict, so > > I'm attaching a patch that should help diagnose it. > > You'll probably want to nuke RF_ACTIVE so the resources are marked > as taken but in case of vt_efifb(4), the memory isn't mapped twice. > I don't not know whether the latter actually is a problem for x86, > though, it'll likely at least replace the VM_MEMATTR_WRITE_COMBINING > mapping done in vt_efifb_remap(). Removing RF_ACTIVE in turn might > not be sufficient for the Xen bits to mark the resource as reserved, > this should be fixed in the FreeBSD/Xen code then, however. > Also end = size - 1, see the attached patch. Err, end = start + size - 1 that is. Marius
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