Messages in this thread | | | Date | Wed, 3 Dec 2003 17:21:45 -0500 | From | William Park <> | Subject | USB + SMP (MPS 1.4) --> oops |
| |
Dear USB developers:
With SMP linux-2.6.0-test11 and MPS 1.1, USB seems to work. But, when I use MPS 1.4, which moves the PCI cards to irq=16-19, USB does not work. Furthermore, when I try do 'rmmod' or stop 'rc.hotplug', it hangs with the following:
I can't make head or tail of it, but it's just for your reference...
# sh /etc/rc.d/rc.hotplug stop Unable to handle kernel NULL pointer dereference at virtual address 00000000 *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<c018fd86>] Not tainted EFLAGS: 00010296 EIP is at sysfs_get_dentry+0x16/0x70 eax: 00000000 ebx: ddc7cad0 ecx: ffffffff edx: 00000000 esi: dd908de0 edi: 00000000 ebp: ddc7c624 esp: dd771e44 ds: 007b es: 007b ss: 0068 Process rmmod (pid: 521, threadinfo=dd770000 task=dde1b2f0) Stack: c016615f dd771e64 dd92d500 00000000 c018fdd5 dd771e64 dd6f47c0 ddc7cad0 ddc7c600 c018fe0b dd908de0 00000000 ddc7cad0 e1132ba0 c01cd298 dd908de0 00000000 ddc7cad0 ddc7c6d0 c01cd426 ddc7cad0 ddc7cb2c ddc7cad0 ddc7c6d0 Call Trace: [<c016615f>] lookup_hash+0x1f/0x30 [<c018fdd5>] sysfs_get_dentry+0x65/0x70 [<c018fe0b>] sysfs_hash_and_remove+0x2b/0x7f [<c01cd298>] device_release_driver+0x28/0x70 [<c01cd426>] bus_remove_device+0x56/0xa0 [<c01cc2bf>] device_del+0x5f/0xb0 [<c01cc323>] device_unregister+0x13/0x30 [<e111cad9>] usb_disconnect+0xd9/0xf0 [usbcore] [<e1124cb9>] usb_hcd_pci_remove+0x89/0x180 [usbcore] [<c01a6b2b>] pci_device_remove+0x3b/0x40 [<c01cd2d6>] device_release_driver+0x66/0x70 [<c01cd30b>] driver_detach+0x2b/0x40 [<c01cd55e>] bus_remove_driver+0x3e/0x80 [<c01cd983>] driver_unregister+0x13/0x2a [<c01a6cc2>] pci_unregister_driver+0x12/0x20 [<e1139fef>] uhci_hcd_cleanup+0xf/0x5e [uhci_hcd] [<c0136b9c>] sys_delete_module+0x13c/0x180 [<c014bb25>] sys_munmap+0x45/0x70 [<c01094ef>] syscall_call+0x7/0xb
Code: f2 ae f7 d1 49 31 db 89 d7 89 4c 24 10 49 83 f9 ff 74 24 8d /etc/hotplug/usb.rc: line 370: 521 Segmentation fault rmmod uhci-hcd >/dev/null 2>&1
-- William Park, Open Geometry Consulting, <opengeometry@yahoo.ca> Linux solution for data management and processing. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |