Re: ALSA via82xx fails since 2.6.2

[Len Brown <len.brown@intel.com>]

On Fri, 2004-03-12 at 15:34, Jürgen Repolusk wrote:

> I see this in dmesg on 2.6.4-rc1:
> 
> VIA 82xx Audio: probe of 0000:00:07.5 failed with error -16
> 

I don't know if it is related to the audio failure, but interrupts in
general and the ACPI SCI in particular seem totally broken on this box
(below)

> this is on a sony vaio pcg-fx505
> 
> regards
> juergen repolusk, please CC me personally
> 
> complete dmesg (+lspci follow)
> ADT (v001 SONY   K5       0x06040000 PTL_ 0x000f4240) @ 0x0fefee4c
> ACPI: BOOT (v001 PTLTD  $SBFTBL$ 0x06040000  LTP 0x00000001) @
> 0x0fefeec0
> ACPI: SSDT (v001 PTLTD  POWERNOW 0x06040000  LTP 0x00000001) @
> 0x0fefeee8
> ACPI: DSDT (v001  SONY  K5       0x06040000 MSFT 0x0100000d) @
> 0x00000000
> Built 1 zonelists
> Kernel command line: BOOT_IMAGE=gentoo264 ro root=303 apm=off acpi=on
> vga=0x318
> Local APIC disabled by BIOS -- reenabling.
> Found and enabled local APIC!
> Initializing CPU#0
> PID hash table entries: 2048 (order 11: 16384 bytes)
> Detected 1200.077 MHz processor.
> Using tsc for high-res timesource
> Console: colour dummy device 80x25
> Memory: 254264k/262144k available (2817k kernel code, 7056k reserved,
> 1078k
> data, 172k init, 0k highmem)
> Checking if this processor honours the WP bit even in supervisor
> mode... Ok.
> Calibrating delay loop... 2359.29 BogoMIPS
> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> CPU:     After generic identify, caps: 0383fbff c1cbfbff 00000000
> 00000000
> CPU:     After vendor identify, caps: 0383fbff c1cbfbff 00000000
> 00000000
> CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
> CPU: L2 Cache: 256K (64 bytes/line)
> CPU:     After all inits, caps: 0383fbff c1cbfbff 00000000 00000020
> Intel machine check architecture supported.
> Intel machine check reporting enabled on CPU#0.
> CPU: AMD mobile AMD Athlon(tm) 4  stepping 02
> Enabling fast FPU save and restore... done.
> Enabling unmasked SIMD FPU exception support... done.
> Checking 'hlt' instruction... OK.
> POSIX conformance testing by UNIFIX
> enabled ExtINT on CPU#0
> ESR value before enabling vector: 00000000
> ESR value after enabling vector: 00000000
> Using local APIC timer interrupts.
> calibrating APIC timer ...
> ..... CPU clock speed is 1199.0872 MHz.
> ..... host bus clock speed is 199.0978 MHz.
> NET: Registered protocol family 16
> PCI: PCI BIOS revision 2.10 entry at 0xfd7cd, last bus=1
> PCI: Using configuration type 1
> mtrr: v2.0 (20020519)
> ACPI: Subsystem revision 20040211
> ACPI: IRQ9 SCI: Level Trigger.
> spurious 8259A interrupt: IRQ7.

Spurious on IRQ7 may mean that a device is pulling an interrupt line
which has no driver attached.

> irq 9: nobody cared!
> Call Trace:
>  [<c010b69b>] __report_bad_irq+0x2b/0x90
>  [<c02592ad>] acpi_irq+0xf/0x1a
>  [<c010b794>] note_interrupt+0x64/0xa0
>  [<c010ba73>] do_IRQ+0x143/0x160
>  [<c0109dc8>] common_interrupt+0x18/0x20

Here we've apparently gone recursive on the interrupt handler, I don't
think that is supposed to be possible.

>  [<c0126a94>] do_softirq+0x44/0xa0
>  [<c025929e>] acpi_irq+0x0/0x1a
>  [<c010ba47>] do_IRQ+0x117/0x160
>  [<c0109dc8>] common_interrupt+0x18/0x20
>  [<c010c04c>] setup_irq+0x9c/0x100
>  [<c025929e>] acpi_irq+0x0/0x1a

okay, so we got an acpi_irq() right when we requeted the IRQ, that is
unusual, but should be okay.  Curious that common_interrupt/do_IRQ are
not on the stack here though...

>  [<c010bb68>] request_irq+0x98/0xd0
>  [<c02592ed>] acpi_os_install_interrupt_handler+0x35/0x5b

>  [<c025929e>] acpi_irq+0x0/0x1a
>  [<c025929e>] acpi_irq+0x0/0x1a

dunno what's the deal with the stack here acpi_irq() is not called from
acpi_ev_install_sci_handler(), and request_irq() hasn't even been called
yet!

>  [<c025d58e>] acpi_ev_install_sci_handler+0x1d/0x1f
>  [<c025d548>] acpi_ev_sci_xrupt_handler+0x0/0x1c
>  [<c025cf8d>] acpi_ev_handler_initialize+0x9/0x71
>  [<c026ebf4>] acpi_enable_subsystem+0x2e/0x5b
>  [<c04e35d2>] acpi_bus_init+0x7c/0x111
>  [<c04e36c0>] acpi_init+0x59/0xb4
>  [<c04d082c>] do_initcalls+0x2c/0xa0
>  [<c01332c2>] init_workqueues+0x12/0x30
>  [<c01050d5>] init+0x35/0x140
>  [<c01050a0>] init+0x0/0x140
>  [<c01072c9>] kernel_thread_helper+0x5/0xc
> 
> handlers:
> [<c025929e>] (acpi_irq+0x0/0x1a)
> Disabling IRQ #9
> ACPI: Interpreter enabled

What does /proc/interrupts on this box look like?
how about when you boot with acpi=off or pci=noacpi?

Are you sure you didn't see these messages before 2.6.2 -- was ACPI
enabled in the working release?

thanks,
-Len