Dell Optiplex 755 hangs every other boot before 82801 Family Hub Interface to PCI Bridge probed

John Baldwin jhb at freebsd.org
Tue Mar 25 19:41:33 UTC 2008


On Tuesday 25 March 2008 12:27:03 am David Wolfskill wrote:
> On Fri, Mar 21, 2008 at 11:02:35AM -0400, John Baldwin wrote:
> > ...
> > Ok.  Please apply the patch below and report back which printfs you see.
> >...
> 
> Here you go:
> 
> ...
> Copyright (c) 1992-2008 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>         The Regents of the University of California. All rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 8.0-CURRENT #0: Fri Feb 15 16:13:31 PST 2008
>     root at dwolf-bsd.jnpr.net:/common/S4/obj/usr/src/sys/DWOLF
> WARNING: WITNESS option enabled, expect reduced performance.
> ...
> usb6: EHCI version 1.0
> usb6: companion controllers, 2 ports each: usb3 usb4 usb5
> usb6: <EHCI (generic) USB 2.0 controller> on ehci1
> usb6: USB revision 2.0
> uhub6: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb6
> uhub6: 6 ports with 6 removable, self powered
> pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
> pcib2:   domain            0
> pcib2:   secondary bus     2
> pcib2:   subordinate bus   2
> pcib2:   I/O decode        0xf000-0xfff
> pcib2:   no prefetched decode
> pcib2:   Subtractively decoded bridge.
> 
> 	> hang here on alternate boots <
> 
> pcib2: fetching _PRT
> pcib2: adding pci bus child device
> pcib2: force attaching PCI link devices found in _PRT
> pcib2: attaching the PCI child bus device
> pci2: <ACPI PCI bus> on pcib2
> pci2: domain=0, physical bus=2
> isab0: <PCI-ISA bridge> at device 31.0 on pci0
> isa0: <ISA bus> on isab0
> atapci1: <Intel (ID=29228086) AHCI controller> port 
0xfe00-0xfe07,0xfe10-0xfe13,
> 0xfe20-0xfe27,0xfe30-0xfe33,0xfec0-0xfedf mem 0xff970000-0xff9707ff irq 18 
at de
> vice 31.2 on pci0
> atapci1: Reserved 0x20 bytes for rid 0x20 type 4 at 0xfec0
> atapci1: Reserved 0x800 bytes for rid 0x24 type 3 at 0xff970000
> atapci1: [MPSAFE]
> atapci1: [ITHREAD]
> ....
> 
> 
> In case that wasn't sufficient detail, I've attached the  "hang"
> and "nohang" typescripts from the serial console.

Ok, try updated patch (more debugging).

-- 
John Baldwin
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