Date: Tue, 28 Feb 2012 22:26:25 +0000 From: Harry Newton <hn@yewbarrow.net> To: Ian Lepore <freebsd@damnhippie.dyndns.org> Cc: freebsd-stable@freebsd.org Subject: Re: Regression between 9-RELEASE and 9-STABLE [PCIB ?] Message-ID: <CAKAm69HeLfTNvw79yikwrKC7e08xgHHd_4Bfc3RCfxX7Zau8dg@mail.gmail.com> In-Reply-To: <1330459721.1023.15.camel@revolution.hippie.lan> References: <CAKAm69EPHB_0DrSdCvNTeOnoRhAHjMtWSF-520oGRppJ=KKjrg@mail.gmail.com> <1330459721.1023.15.camel@revolution.hippie.lan>
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Not really. Verbose suggests it completes the scan of the PCI to LPC Bridge and PCI to PCI bridge. Comparing with a working verbose boot, the next stage, which isn't reached, is HyperTransport Technology Configuration. Trying BUS_DEBUG, I got a lot of this: device_add_child_ordered: 1813: (null) at pci with orer 0 as unit -1 make_device: 1698: (null) at pci as unit -1 I neglected to say before: the machine's been running FreeBSD 7-STABLE quite happily with no problems. - Harry On 28 February 2012 20:08, Ian Lepore <freebsd@damnhippie.dyndns.org> wrote= : > On Tue, 2012-02-28 at 19:15 +0000, Harry Newton wrote: >> 9-RELEASE works fine. csup to 9-STABLE and make buildworld kernel etc >> gives a system the hangs during the boot process. There are no error >> messages during the part boot, and no panic. Last messages before hang >> are: >> >> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 >> pci0: <ACPI PCI bus> on pcib0 >> >> I am stumped about how to diagnose this, and would be _very_ grateful >> for any suggestions. >> >> When it's hung I can't force a break to debugger (BREAK_TO_DEBUGGER) >> in kern conf: I imagine I'm too early in the boot sequence. >> >> - Harry >> > > I assume booting verbose doesn't provide any more clues? =A0I've sometime= s > gotten an extra clue from a hang during boot by building with option > BUS_DEBUG. =A0Even if you don't suspect the newbus routines as directly > being the problem, sometimes you get a bit more info about what was > happening at the time of lockup. > > -- Ian > > --=20 Harry Newton
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