Date: Mon, 18 Jun 2012 10:26:20 -0400 From: John Baldwin <jhb@freebsd.org> To: Andrey Zonov <andrey@zonov.org> Cc: freebsd-stable <freebsd-stable@freebsd.org>, Marius Strobl <marius@alchemy.franken.de> Subject: Re: mpt: Unable to memory map registers Message-ID: <201206181026.20857.jhb@freebsd.org> In-Reply-To: <4FDC5BA7.4040702@zonov.org> References: <4FD0ECB7.8040908@zonov.org> <201206151324.58103.jhb@freebsd.org> <4FDC5BA7.4040702@zonov.org>
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On Saturday, June 16, 2012 6:10:47 am Andrey Zonov wrote: > On 6/15/12 9:24 PM, John Baldwin wrote: > > On Friday, June 15, 2012 2:12:06 am Andrey Zonov wrote: > >> On 6/13/12 7:10 PM, John Baldwin wrote: > >>> On Tuesday, June 12, 2012 5:57:34 pm Andrey Zonov wrote: > >>>> On 6/13/12 12:51 AM, John Baldwin wrote: > >>>>> On Tuesday, June 12, 2012 3:53:09 pm Andrey Zonov wrote: > >>>>>> On 6/12/12 10:06 PM, John Baldwin wrote: > >>>>>>> > >>>>>> [snip] > >>>>>>> Ok, I've added some more debugging. The patch is a bit larger now and > > you > >>>>> can > >>>>>>> fetch it from www.freebsd.org/~jhb/patches/pcib_debug.patch > >>>>>>> > >>>>>> > >>>>>> New dmesg is in attach. > >>>>> > >>>>> Sheesh, found another bug (wasn't masking 'front' properly). > >>>>> > >>>>> Try updated patch (same URL). > >>>>> > >>>> > >>>> Great! It works! > >>> > >>> Excellent. I've committed the 2 bugs needed to fix your box. However, > >>> there is another bug that this exposed that I'd like you to test. Can you > >>> update to the latest HEAD, apply the updated pcib_debug.patch, and boot > >>> with 'hw.pci.pcib_clear=1' set from the loader? That should exercise the > >>> bug I'm worried about and see if my fixes for that (recursively growing > >>> windows) works correctly. > >>> > >> > >> Attached. > > > > Hmm, it doesn't seem like hw.pci.pcib_clear was set (the pcibX devices still > > tried to allocate their initial windows). > > > > Ooops. Thanks. Unfortunately, this didn't actually exercise what I wanted, but that is ok. However, this did uncover another bug it seems: pcib7: <ACPI PCI-PCI bridge> at device 0.3 on pci5 pci6: <ACPI PCI bus> on pcib7 pci6: domain=0, physical bus=6 found-> vendor=0x1000, dev=0x0054, revid=0x02 pcib3: attempting to grow I/O port window for (0xd000-0xdfff,0x1000) front candidate range: 0xd000-0xdfff pcib3: bus_adjust_resource(0xc000, 0xefff) pci0: bus_adjust_resource(pcib3, 0x1c, 0xc000, 0xefff) pcib0: bus_adjust_resource(pcib3, 0x1c, 0xc000, 0xefff) acpi0: bus_adjust_resource(pcib3, 0x1c, 0xc000, 0xefff) nexus0: bus_adjust_resource(pcib3, 0x1c, 0xc000, 0xefff) pcib3: grew I/O port window to 0xc000-0xefff pcib3: allocated I/O port range (0xd000-0xdfff) for rid 1c of pcib7 pcib7: allocated initial I/O port window of 0xd000-0xdfff This grew the range too large resulting in this failure later on: pcib9: failed to allocate initial I/O port window (0xc000-0xcfff,0x1000) Can you try the updated pcib_debug.patch? It has some more printf's for this case. -- John Baldwin
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