Re: Digitemp problem with kernel 2.6.39

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Please find here an extended trace result:

http://pastebin.com/MYAP0JZt



On Thu, Jun 30, 2011 at 9:28 PM, Greg KH <gregkh@xxxxxxx> wrote:
> On Thu, Jun 30, 2011 at 09:09:47PM +0200, Felix Paliuc wrote:
>> Could it be one of these changes made to ch341:
>>
>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=drivers/usb/serial/ch341.c;h=6ae1c0688b5e14cb03cb9905ea793ac6caa4f84b;hb=61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf
>
> Yes, it could be any of those.
>
> Can you run 'git bisect' to try to track down the offender?
>
> I looked at your strace output, and didn't see anything obvious other
> than it looks like the program is timing out a lot.  Is it waiting for
> data to be sent to it from the device?
>
> Is there a pointer to the userspace program anywhere that I could look
> at it to see if it is setting up the line settings properly?  Odds are a
> flow control setting isn't being initialized that is now being paid
> attention to (older versions of the driver ignored that, which caused
> overflow problems and that was fixed.)
>
> thanks,
>
> greg k-h
>
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