Hi All,
there appears to be a potential locking cycle in 2.5.62's
drivers/usb/host/uhci-hcd.c
Though it looks like its in debugging code.
Confirmation/destruction appreciated.
<struct urb.lock (<local>:0)>-><struct uhci_hcd.complete_list_lock (<local>:0)> occurred 1 times
<struct uhci_hcd.complete_list_lock (<local>:0)>-><struct urb.lock (<local>:0)> occurred 1 times
Lock <struct urb.lock> is involved in <1> errors and <struct uhci_hcd.complete_list_lock> in 1
Callchain for
<struct urb.lock (<local>:0)>-><struct uhci_hcd.complete_list_lock (<local>:0)> =
depth = 2:
drivers/usb/host/uhci-hcd.c:uhci_transfer_result:1507
spin_lock_irqsave(&urb->lock, flags);
->drivers/usb/host/uhci-hcd.c:uhci_transfer_result:1507
->uhci_transfer_result:1568
->end=uhci_add_complete:138:spin_lock_irq
spin_lock_irqsave(&uhci->complete_list_lock, flags);
Callchain for
<struct uhci_hcd.complete_list_lock (<local>:0)>-><struct urb.lock (<local>:0)> =
depth = 2:
drivers/usb/host/uhci-debug.c:uhci_show_lists:395
->drivers/usb/host/uhci-debug.c:uhci_show_lists:395
->uhci_show_lists:407
spin_lock_irqsave(&uhci->complete_list_lock, flags);
->end=uhci_show_urbp:328:spin_lock
->drivers/usb/host/uhci-debug.c:uhci_show_urbp:328
spin_lock(&urbp->urb->lock);
-
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This archive was generated by hypermail 2b29 : Sun Mar 23 2003 - 22:00:40 EST