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From
SubjectRe: 2.6.19-rc6-rt8
Date
Am Dienstag, 28. November 2006 23:40 schrieb Karsten Wiese:
> Am Montag, 27. November 2006 10:49 schrieb Ingo Molnar:
> > i have released the 2.6.19-rc6-rt8 tree, which can be downloaded from
>
> I saw usb transport errors here before rebooting with
> nmi_watchdog=0
> contained in kernel command line.
>
> Testcase stalled within 2 minutes before change,
> ticks happily after change for 15 minutes now.
> .config is a "release" type, no debugging options.

After estimated 15 minutes more it bugged again.
Related dmesg translates to linux error
-EXDEV
propably caused by the following lines:

<snip>
static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb)
{
struct uhci_td *td, *tmp;
struct urb_priv *urbp = urb->hcpriv;
struct uhci_qh *qh = urbp->qh;

list_for_each_entry_safe(td, tmp, &urbp->td_list, list) {
unsigned int ctrlstat;
int status;
int actlength;

if (uhci_frame_before_eq(uhci->cur_iso_frame, qh->iso_frame))
return -EINPROGRESS;

uhci_remove_tds_from_frame(uhci, qh->iso_frame);

ctrlstat = td_status(td);
if (ctrlstat & TD_CTRL_ACTIVE) {
status = -EXDEV; /* TD was added too late? */
</snip>

Karsten
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