From: William Park <opengeometry@yahoo.ca>
To: linux-kernel@vger.kernel.org
Subject: USB + SMP (MPS 1.4) --> oops
Date: Wed, 3 Dec 2003 17:21:45 -0500 [thread overview]
Message-ID: <20031203222145.GA673@node1.opengeometry.net> (raw)
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.
reply other threads:[~2003-12-03 22:21 UTC|newest]
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