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SubjectUSB-related Oops in test12
This Oops happened with mutt as the only active user process.

I'd been using uhci for a while with test kernels, as usb-uhci had
been oopsing on first mouse use. However, with test12 I found a
problem with uhci:

Dec 13 12:13:24 bloch kernel: PCI: Found IRQ 5 for device 00:07.2
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:07.3
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:08.0
Dec 13 12:13:24 bloch kernel: uhci.c: USB UHCI at I/O 0xc400, IRQ 5
Dec 13 12:13:24 bloch kernel: uhci.c: detected 2 ports
Dec 13 12:13:24 bloch kernel: usb.c: new USB bus registered, assigned
bus number 1
Dec 13 12:13:24 bloch kernel: uhci: host controller process
error. something bad happened
Dec 13 12:13:24 bloch kernel: uhci: host controller halted. very bad
Dec 13 12:13:24 bloch kernel: Product: USB UHCI-alt Root Hub
Dec 13 12:13:24 bloch kernel: SerialNumber: c400
Dec 13 12:13:24 bloch kernel: hub.c: USB hub found
Dec 13 12:13:24 bloch kernel: hub.c: 2 ports detected
Dec 13 12:13:24 bloch kernel: PCI: Found IRQ 5 for device 00:07.3
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:07.2
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:08.0
Dec 13 12:13:24 bloch kernel: uhci.c: USB UHCI at I/O 0xc800, IRQ 5
Dec 13 12:13:24 bloch kernel: uhci.c: detected 2 ports
Dec 13 12:13:24 bloch kernel: usb.c: new USB bus registered, assigned
bus number 2
Dec 13 12:13:24 bloch kernel: uhci: host controller halted. very bad
Dec 13 12:13:24 bloch kernel: uhci: host controller process
error. something bad happened
Dec 13 12:13:24 bloch kernel: uhci: host controller halted. very bad
Dec 13 12:13:24 bloch kernel: Product: USB UHCI-alt Root Hub
Dec 13 12:13:24 bloch kernel: SerialNumber: c800
Dec 13 12:13:24 bloch kernel: hub.c: USB hub found
Dec 13 12:13:24 bloch kernel: hub.c: 2 ports detected
Dec 13 12:13:24 bloch kernel: hub.c: USB new device connect on bus1/1,
assigned
device number 3
Dec 13 12:13:24 bloch kernel: usb_control/bulk_msg: timeout
Dec 13 12:13:24 bloch kernel: usb.c: USB device not accepting new
address=3 (error=-110)
Dec 13 12:13:24 bloch kernel: hub.c: USB new device connect on bus1/1,
assigned
device number 4
Dec 13 12:13:24 bloch kernel: PCI: Found IRQ 5 for device 00:08.0
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:07.2
Dec 13 12:13:24 bloch kernel: PCI: The same IRQ used for device
00:07.3
Dec 13 12:13:24 bloch kernel: usb_control/bulk_msg: timeout
Dec 13 12:13:24 bloch kernel: usb.c: USB device not accepting new
address=4 (error=-110)

so I switched back to usb-uhci

Those PCI messages are new with test 12 - the USB controller shares an
IRQ with an SB Live card. That hadn't caused a problem previously.

Here is the ksymoops output:

ksymoops 2.3.4 on i686 2.4.0-test12. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.0-test12/ (default)
-m /boot/System.map-2.4.0-test12 (specified)

Warning (compare_maps): snd symbol pm_register not found in /lib/modules/2.4.0-test12/misc/snd.o. Ignoring /lib/modules/2.4.0-test12/misc/snd.o entry
Warning (compare_maps): snd symbol pm_send not found in /lib/modules/2.4.0-test12/misc/snd.o. Ignoring /lib/modules/2.4.0-test12/misc/snd.o entry
Warning (compare_maps): snd symbol pm_unregister not found in /lib/modules/2.4.0-test12/misc/snd.o. Ignoring /lib/modules/2.4.0-test12/misc/snd.o entry
Unable to handle kernel NULL pointer dereference at virtual address 0000000c
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<d086734b>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000 ebx: 00e08269 ecx: 00888105 edx: 0000000c
esi: 00000004 edi: cfa84c40 ebp: cfabeb00 esp: c0259ec8
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c0259000)
Stack: 00000000 cfabeb24 cfabc180 cff28cc0 cfa84c40 cff28cdc 00000000 d0867639
cff28cc0 cfa84c40 00000020 00000002 00000000 cff28cdc cff28cc0 cff28cdc
00000000 d0867848 cff28cc0 cfa84c48 00000000 cfef0001 00000000 c02a7480
Call Trace: [<d0867639>] [<d0867848>] [<c010c1bf>] [<c010c342>] [<c010afb0>] [<c01c3e62>] [<c01c3b80>]
[<c0109150>] [<c01c3b80>] [<c011fc01>] [<c01091d8>] [<c0105000>] [<c0100191>]
Code: 8b 04 82 c1 e9 08 83 e1 0f d3 e8 83 e0 01 c1 e0 13 09 45 08

>>EIP; d086734b <[usb-uhci]process_interrupt+10b/1f0> <=====
Trace; d0867639 <[usb-uhci]process_urb+79/1f0>
Trace; d0867848 <[usb-uhci]uhci_interrupt+98/100>
Trace; c010c1bf <handle_IRQ_event+2f/60>
Trace; c010c342 <do_IRQ+72/c0>
Trace; c010afb0 <ret_from_intr+0/20>
Trace; c01c3e62 <acpi_idle+2e2/330>
Trace; c01c3b80 <acpi_idle+0/330>
Trace; c0109150 <default_idle+0/30>
Trace; c01c3b80 <acpi_idle+0/330>
Trace; c011fc01 <check_pgt_cache+11/20>
Trace; c01091d8 <cpu_idle+38/50>
Trace; c0105000 <empty_bad_page+0/1000>
Trace; c0100191 <L6+0/2>
Code; d086734b <[usb-uhci]process_interrupt+10b/1f0>
00000000 <_EIP>:
Code; d086734b <[usb-uhci]process_interrupt+10b/1f0> <=====
0: 8b 04 82 mov (%edx,%eax,4),%eax <=====
Code; d086734e <[usb-uhci]process_interrupt+10e/1f0>
3: c1 e9 08 shr $0x8,%ecx
Code; d0867351 <[usb-uhci]process_interrupt+111/1f0>
6: 83 e1 0f and $0xf,%ecx
Code; d0867354 <[usb-uhci]process_interrupt+114/1f0>
9: d3 e8 shr %cl,%eax
Code; d0867356 <[usb-uhci]process_interrupt+116/1f0>
b: 83 e0 01 and $0x1,%eax
Code; d0867359 <[usb-uhci]process_interrupt+119/1f0>
e: c1 e0 13 shl $0x13,%eax
Code; d086735c <[usb-uhci]process_interrupt+11c/1f0>
11: 09 45 08 or %eax,0x8(%ebp)

Aiee, killing interrupt handler
Kernel panic: Attempted to kill the idle task!

3 warnings issued. Results may not be reliable.

Here is the USB and ACPI output from dmesg:

ACPI: support found
ACPI: PBLK 1 @ 0x4010:0
-0196: *** Error: Sleep State package elements are not both of type Number
ACPI: S1 supported
ACPI: S5 supported
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 192k freed
Adding Swap: 248968k swap-space (priority -1)
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.251 $ time 02:09:53 Dec 13 2000
usb-uhci.c: High bandwidth mode enabled
PCI: Found IRQ 5 for device 00:07.2
PCI: The same IRQ used for device 00:07.3
PCI: The same IRQ used for device 00:08.0
usb-uhci.c: USB UHCI at I/O 0xc400, IRQ 5
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
usb.c: kmalloc IF c14c4dc0, numif 1
usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
usb.c: USB device number 1 default language ID 0x0
Product: USB UHCI Root Hub
SerialNumber: c400
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: standalone hub
hub.c: ganged power switching
hub.c: global over-current protection
hub.c: power on to power good time: 2ms
hub.c: hub controller current requirement: 0mA
hub.c: port removable status: RR
hub.c: local power source is good
hub.c: no over-current condition exists
hub.c: enabling power on all ports
usb.c: hub driver claimed interface c14c4dc0
usb.c: kusbd: /sbin/hotplug add 1
usb.c: kusbd policy returned 0xfffffffe
PCI: Found IRQ 5 for device 00:07.3
PCI: The same IRQ used for device 00:07.2
PCI: The same IRQ used for device 00:08.0
usb-uhci.c: USB UHCI at I/O 0xc800, IRQ 5
usb-uhci.c: Detected 2 ports
hub.c: port 1 connection change
hub.c: port 1, portstatus 301, change 3, 1.5 Mb/s
hub.c: port 1, portstatus 303, change 0, 1.5 Mb/s
hub.c: USB new device connect on bus1/1, assigned device number 2
usb.c: new USB bus registered, assigned bus number 2
usb.c: kmalloc IF c14c4a40, numif 1
usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
usb.c: USB device number 3 default language ID 0x0
Product: USB UHCI Root Hub
SerialNumber: c800
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: standalone hub
hub.c: ganged power switching
hub.c: global over-current protection
hub.c: power on to power good time: 2ms
hub.c: hub controller current requirement: 0mA
hub.c: port removable status: RR
hub.c: local power source is good
hub.c: no over-current condition exists
hub.c: enabling power on all ports
usb.c: hub driver claimed interface c14c4a40
usb.c: kusbd: /sbin/hotplug add 3
usb.c: kusbd policy returned 0xfffffffe
usb.c: kmalloc IF c14c0f40, numif 1
usb.c: skipped 1 class/vendor specific interface descriptors
usb.c: new device strings: Mfr=1, Product=2, SerialNumber=0
usb.c: USB device number 2 default language ID 0x409
Manufacturer: Logitech
Product: USB-PS/2 Mouse M-BA47
usb.c: unhandled interfaces on device
usb.c: USB device 2 (vend/prod 0x46d/0xc002) is not claimed by any active driver.
Length = 18
DescriptorType = 01
USB version = 1.00
Vendor:Product = 046d:c002
MaxPacketSize0 = 8
NumConfigurations = 1
Device version = 1.20
Device Class:SubClass:Protocol = 00:00:00
Per-interface classes
Configuration:
bLength = 9
bDescriptorType = 02
wTotalLength = 0022
bNumInterfaces = 01
bConfigurationValue = 01
iConfiguration = 00
bmAttributes = a0
MaxPower = 50mA

Interface: 0
Alternate Setting: 0
bLength = 9
bDescriptorType = 04
bInterfaceNumber = 00
bAlternateSetting = 00
bNumEndpoints = 01
bInterface Class:SubClass:Protocol = 03:01:02
iInterface = 00
Endpoint:
bLength = 7
bDescriptorType = 05
bEndpointAddress = 81 (in)
bmAttributes = 03 (Interrupt)
wMaxPacketSize = 0008
bInterval = 0a
usb.c: kusbd: /sbin/hotplug add 2
usb.c: kusbd policy returned 0xfffffffe
hub.c: port 2 connection change
hub.c: port 2, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 2 enable change, status 300
hub.c: port 1 connection change
hub.c: port 1, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 2 connection change
hub.c: port 2, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 1 enable change, status 300
hub.c: port 2 enable change, status 300
usb.c: registered new driver hid
input0: USB HID v1.00 Mouse [Logitech USB-PS/2 Mouse M-BA47] on usb1:2.0
usb.c: hid driver claimed interface c14c0f40
mouse0: PS/2 mouse device for input0
mice: PS/2 mouse device common for all mice
PCI: Found IRQ 5 for device 00:08.0
PCI: The same IRQ used for device 00:07.2
PCI: The same IRQ used for device 00:07.3
eth0: Setting full-duplex based on MII #32 link partner ability of 45e1.

Athlon 800 on Abit KA7-100 m/b, 256Mb.

Clean test12 tree.

Adam
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