On Tue, Oct 01, 2002, Duncan Sands <[EMAIL PROTECTED]> wrote: > When booting 2.5.40 I immediately get the following oops > (copied down by hand); > > EIP is at uhci_result_control+0x11/0x1f0 [uhci-hcd] > Process usbmodules > Call Trace: > uhci_transfer_result+0x67/0x170 [uhci-hcd] > uhci_irq+0xd7/0x108 [uhci-hcd] > usb_hcd_irq+0x19/0x38 > handle_IRQ_event+0x28/0x4c > do_IRQ+0x9d/0x114 > common_interrupt+0x18/0x20 > kernel_thread+0x6c/0x8c > > Here is part of uhci_transfer_result: > > 00002218 <uhci_result_control>: > 2218: 83 ec 04 sub $0x4,%esp > 221b: 55 push %ebp > 221c: 57 push %edi > 221d: 56 push %esi > 221e: 53 push %ebx > 221f: 8b 7c 24 1c mov 0x1c(%esp,1),%edi > 2223: 8b 6f 08 mov 0x8(%edi),%ebp > 2226: 8d 75 14 lea 0x14(%ebp),%esi > 2229: 8b 45 14 mov 0x14(%ebp),%eax <=== HERE > 222c: 39 f0 cmp %esi,%eax > 222e: 75 10 jne 2240 <uhci_result_control+0x28> > 2230: b8 ea ff ff ff mov $0xffffffea,%eax > 2235: e9 c8 01 00 00 jmp 2402 <uhci_result_control+0x1ea> > 223a: 8d b6 00 00 00 00 lea 0x0(%esi),%esi > > So it looks like the oops is happening here: > > int ret = 0; > > if (list_empty(&urbp->td_list)) <=== OOPS > return -EINVAL; > > head = &urbp->td_list; > > > Maybe this should be (no &): > > if (list_empty(urbp->td_list)) > return -EINVAL;
Nope, that's definately not the right fix. It's difficult to tell what the problem is since you don't have the rest of the oops, but I'll venture to say that urbp is invalid. Does this problem exist in earlier kernels for you? I haven't made any changes to to the uhci-hcd driver in a number of kernel versions so either the problem has been there for a long time or something else is breaking it. JE ------------------------------------------------------- This sf.net email is sponsored by: DEDICATED SERVERS only $89! Linux or FreeBSD, FREE setup, FAST network. Get your own server today at http://www.ServePath.com/indexfm.htm _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
