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SubjectUSB kernel Oops report
Alan,

may be you're not the one to report this bug to... if that's the case
please tell me who to address this email to.

With a stock kernel 2.4.9, with usbcore builtin (but with usb drivers
modularized), I get this Oops when loading usb-uhci:

Sep 8 05:03:24 localhost kernel: hub.c: USB hub found
Sep 8 05:03:24 localhost kernel: hub.c: 2 ports detected
Sep 8 05:03:24 localhost kernel: usb-uhci.c: v1.251:USB Universal Host
Controller Interface driver
Sep 8 05:03:24 localhost kernel: usb.c: USB disconnect on device 1
Sep 8 05:03:24 localhost kernel: usb.c: USB disconnect on device 2
Sep 8 05:03:24 localhost kernel: Unable to handle kernel NULL pointer
dereference at virtual address 0000000c
Sep 8 05:03:24 localhost kernel: printing eip:
Sep 8 05:03:24 localhost kernel: c0217262
Sep 8 05:03:24 localhost kernel: *pde = 00000000
Sep 8 05:03:24 localhost kernel: Oops: 0000
Sep 8 05:03:24 localhost kernel: CPU: 0
Sep 8 05:03:24 localhost kernel: EIP: 0010:[call_policy+354/496]
Sep 8 05:03:24 localhost kernel: EIP: 0010:[<c0217262>]
Sep 8 05:03:24 localhost kernel: EFLAGS: 00010246
Sep 8 05:03:24 localhost kernel: eax: 00000000 ebx: c18adba8 ecx:
00000000
edx: c02b5d06
Sep 8 05:03:24 localhost kernel: esi: c18cbbe0 edi: df299200 ebp:
c18adb60
esp: df133ef4
Sep 8 05:03:24 localhost kernel: ds: 0018 es: 0018 ss: 0018
Sep 8 05:03:24 localhost kernel: Process modprobe (pid: 264,
stackpage=df133000)
Sep 8 05:03:24 localhost kernel: Stack: 00000007 c02d1b40 c02b5ce4
00000000 00000025 df299240 df299338 00000002
Sep 8 05:03:24 localhost kernel: df299200 c0218408 c02ad92c
df299200 c021a07c ffffffff df5fc200 df5fc2f8
Sep 8 05:03:24 localhost kernel: df9bb9c0 df5fc200 c02183f0
df5fc2f8 00000018 0000000f c18add60 e0879a80
Sep 8 05:03:24 localhost kernel: Call Trace: [usb_disconnect+232/288]
[hub_disconnect+28/96] [usb_disconnect+208/288]
[ipchains:__insmod_ipchains_O/lib/modules/2.4.9/kernel/net/ipv4/netfi+-9600/96]
[ipchains:__insmod_ipchains_O/lib/modules/2.4.9/kernel/net/ipv4/netfi+-13942/96]
Sep 8 05:03:24 localhost kernel: Call Trace: [<c0218408>] [<c021a07c>]
[<c02183f0>] [<e0879a80>] [<e087898a>]
Sep 8 05:03:24 localhost kernel: [pci_unregister_driver+47/80]
[ipchains:__insmod_ipchains_O/lib/modules/2.4.9/kernel/net/ipv4/netfi+-12694/96]
[ipchains:__insmod_ipchains_O/lib/modules/2.4.9/kernel/net/ipv4/netfi+-9600/96]
[free_module+30/176] [sys_delete_module+265/480] [system_call+51/56]
Sep 8 05:03:24 localhost kernel: [<c01f73af>] [<e0878e6a>]
[<e0879a80>] [<c01157fe>] [<c0114ce9>] [<c0106ceb>]
Sep 8 05:03:24 localhost kernel:
Sep 8 05:03:24 localhost kernel: Code: 8b 40 0c 8b 50 04 89 5e 1c c7 04
24 08 00 00 00 8b 87 d0 00
Sep 8 05:03:24 localhost kernel: usb.c: failed to set device 2 default
configuration (error=-19)
Sep 8 05:03:24 localhost kernel: hub.c: get_port_status(1) failed (err =
-19)
Sep 8 05:03:24 localhost last message repeated 4 times
Sep 8 05:03:24 localhost kernel: hub.c: Cannot enable port 1 of hub 1,
disabling port
Sep 8 05:03:24 localhost kernel: hub.c: Maybe the USB cable is bad?
Sep 8 05:03:24 localhost kernel: hub.c: cannot disable port 1 of hub 1
(err = -19)
Sep 8 05:03:24 localhost kernel: hub.c: get_port_status failed (err =
-19)
Sep 8 05:03:24 localhost kernel: hub.c: get_hub_status failed

-------------------------------------

Of course if I compile usbcore as a module nothing of this happens and USB
works properly. OTOH, JE-uhci doesn't recognize my Saitek USB Cyborg
joystik yet, so I do need usb-uhci.

I know you could tell me that I should compile usbcore as a module an get
rid of the Oops but...

Thanks and regards,

Flavio.


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