Re: [PATCH 0/3 v4] ISOC supporting for USB 3.0

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On Thu, 29 Apr 2010, Andiry Xu wrote:

> > Apr 27 13:42:45 xanatos kernel: [12080.477127] trb_in_td - suspect DMA = 0x0
> > Apr 27 13:42:45 xanatos kernel: [12080.477291] trb_in_td - suspect DMA = 0x3cd9d890
> > Apr 27 13:42:45 xanatos kernel: [12080.477291] trb_in_td - suspect DMA = 0x3cd9d890
> > Apr 27 13:42:45 xanatos kernel: [12080.477411] trb_in_td - suspect DMA = 0x3cd9d8a0
> > Apr 27 13:42:45 xanatos kernel: [12080.477537] trb_in_td - suspect DMA = 0x3cd9d8b0
> > 
> > Why would it giveback 0x3cd9d890 twice?
> 
> I only see 0x3cd9d890 in the full log for once. Please note the time
> stamp - both 12080.477291. Maybe you just copy it for twice?

Or it could be the syslogd process reading the line twice.  I have seen
other examples of this sort of thing.  That's one reason why it's
almost always better to use dmesg instead of the system log file.

Alan Stern

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