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Message-Id: <201002052259.33645.oliver@neukum.org> Date: Fri, 5 Feb 2010 22:59:33 +0100 From: Oliver Neukum <oliver@...kum.org> To: Matthew Garrett <mjg59@...f.ucam.org> Cc: dvomlehn@...co.com, gregkh@...e.de, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang Am Freitag, 5. Februar 2010 20:58:17 schrieb Matthew Garrett: > drivers/usb/serial/usb-serial.c: usb_serial_port_work - port 0 > drivers/usb/serial/usb-serial.c: serial_write - port 0, 2048 byte(s) > drivers/usb/serial/generic.c: usb_serial_generic_write - port 0, 2048 bytes > drivers/usb/serial/generic.c: usb_serial_generic_write - put 512 bytes into fifo > drivers/usb/serial/usb-serial.c: serial_write - port 0, 1536 byte(s) > drivers/usb/serial/generic.c: usb_serial_generic_write - port 0, 1536 bytes > drivers/usb/serial/generic.c: usb_serial_generic_write - put 0 bytes into fifo > drivers/usb/serial/generic.c: usb_serial_generic_write - FIFO is full OK, could you also get an usbmon trace? This would allow a determination whether the submitted URB doesn't finish for some reason, or whether no URB is submitted, possibly because a wakeup is missed. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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