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SubjectRe: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang
On Wed, Feb 03, 2010 at 06:21:39PM +0100, Oliver Neukum wrote:
> Am Mittwoch, 3. Februar 2010 17:46:59 schrieb Matthew Garrett:
> > > If the FIFO is full we can do nothing. Please try the attached patch.
> >
> > Doesn't help, I'm afraid. Does anyone have any idea why the change to
> > use kfifo would cause this?
>
> The logic seems sound. That is unless the kfifo code is acting up.
> Could you printk the value kfifo_len returns in usb_serial_generic_write_start()?

kfifo_len is 4096 when it gets into the fifo_full situation.

--
Matthew Garrett | mjg59@srcf.ucam.org

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