Re: page fault panic in device_get_softc/acpi_pcib_route_interrupt

On Tuesday 28 December 2004 06:32 pm, Pawel Worach wrote:
> John Baldwin wrote:
> > Are you still seeing this?
>
> Yes I am, updated boot -v with debug.rman_debug=1 below.
> Sources are from 16:00 UTC today. Last working kernel I
> have is from November 20, I can start a binary search if
> you want.

No, I'm fairly sure I know what the search would find. :)  Nate, I think the 
problem here is that his link device doesn't have an associated device_t yet 
when he gets to this point.  Can we force ACPI to enumerate all its devices 
and assign the associated device_t's via the GetData/SetData stuff before we 
actually probe any of the children, or do we do that already?

> found-> vendor=0x1166, dev=0x0212, revid=0x93
>          bus=0, slot=15, func=1
>          class=01-01-82, hdrtype=0x00, mfdev=1
>          cmdreg=0x0155, statreg=0x0200, cachelnsz=8 (dwords)
>          lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
>          map[10]: type 1, range 32, base febfe000, size 12, enabled
> rman_reserve_resource: <I/O memory addresses> request: [0xfebfe000,
> 0xfebfefff], length 0x1000, flags 0, device (null)
> considering [0xfe000000, 0xfebfefff]
> truncated region: [0xfebfe000, 0xfebfefff]; size 0x1000 (requested 0x1000)
> candidate region: [0xfebfefff, 0xfebfe000], size 0x1000
> allocating at the end
> pcib0: matched entry for 0.15.INTA (src \LPUS:0)
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0x48
> fault code              = supervisor read, page not present
> instruction pointer     = 0x8:0xc051edc7
> stack pointer           = 0x10:0xc082095c
> frame pointer           = 0x10:0xc0820970
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                          = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = 0 (swapper)
> [thread pid 0 tid 0 ]
> Stopped at      device_get_softc+0x7:   movl    0x48(%eax),%eax
> db> trace
> Tracing pid 0 tid 0 td 0xc06ef1e0
> device_get_softc(c07dd4a0,c07d894d,355,c1e841c0,c1e841c0) at
> device_get_softc+0x7 acpi_pci_link_route_interrupt(0,0,c0820a28,f,41) at
> acpi_pci_link_route_interrupt+0x3a
> acpi_pcib_route_interrupt(c1f16d00,c1f8b780,1,c1f7e214,1) at
> acpi_pcib_route_interrupt+0x33c
> acpi_pcib_acpi_route_interrupt(c1f16d00,c1f8b780,1,c06c7850,c1f8b808) at
> acpi_pcib_acpi_route_interrupt+0x2f
> pci_assign_interrupt_method(c1f16a00,c1f8b780,f,2,24) at
> pci_assign_interrupt_method+0x71
> pci_add_child(c1f16a00,c1f8b800,f,2,80) at pci_add_child+0x207
> pci_add_children(c1f16a00,0,80,c0820b54,c05211cf) at pci_add_children+0x123
> acpi_pci_attach(c1f16a00,c1f4484c,c06c0e3c,c06aa034,0) at
> acpi_pci_attach+0x86
> device_attach(c1f16a00,c1ed5d80,c0820bdc,c07c435c,c1f16d00) at
> device_attach+0x2c9 bus_generic_attach(c1f16d00,c07d8227,0,c0820bcc,0) at
> bus_generic_attach+0x18
> acpi_pcib_attach(c1f16d00,c1f7e214,0,c0820c04,c07bef67) at
> acpi_pcib_attach+0xec
> acpi_pcib_acpi_attach(c1f16d00,c1f4384c,c06c0e3c,c06aa034,0) at
> acpi_pcib_acpi_attach+0xf9
> device_attach(c1f16d00,2f,c0820cbc,c07c1794,c1ed5d80) at
> device_attach+0x2c9 bus_generic_attach(c1ed5d80,2e,2f,c1f7dc48,2e) at
> bus_generic_attach+0x18 acpi_attach(c1ed5d80,c1f4604c,c06c0e3c,c06aa034,0)
> at acpi_attach+0x7b4
> device_attach(c1ed5d80,c1f15000,c0820d18,c06799ca,c1f15000) at
> device_attach+0x2c9
> bus_generic_attach(c1f15000,c1f1504c,c0820d54,c0520179,c1f15000) at
> bus_generic_attach+0x18
> nexus_attach(c1f15000,c1f3c04c,c06c0e3c,c06aa034,0) at nexus_attach+0x1a
> device_attach(c1f15000,c06dd2b0,c0820d78,c0666aa8,c1f15680) at
> device_attach+0x2c9
> root_bus_configure(c1f15680,c06bacbe,0,c0820d98,c04d09c6) at
> root_bus_configure+0x19 configure(0,0,c1e6f774,81ec00,81e000) at
> configure+0x28
> mi_startup() at mi_startup+0xd6
> begin() at begin+0x2c

-- 
John Baldwin <jhb_at_FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org