Messages in this thread | | | Date | Tue, 6 Oct 2015 09:19:03 +0100 | From | Greg KH <> | Subject | Re: alloc_tty_driver fails with ENOMEM |
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On Tue, Oct 06, 2015 at 11:03:46AM +0300, Baruch Siach wrote: > Hi Greg, > > On Tue, Oct 06, 2015 at 08:53:07AM +0100, Greg KH wrote: > > On Tue, Oct 06, 2015 at 09:44:24AM +0300, Baruch Siach wrote: > > > Since upgrading to kernel version from 4.1.x to 4.2.1 on Debian testing I > > > am getting on my PC the following usbserial module init failure when > > > connecting my PC to the i.MX6 SabreSD FTDI USB/serial connector: > > > > > > [39987.092021] usb 1-5.1: new full-speed USB device number 4 using ehci-pci > > > [39987.190805] usb 1-5.1: New USB device found, idVendor=0403, idProduct=6001 > > > [39987.190810] usb 1-5.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > > > [39987.190813] usb 1-5.1: Product: FT232R USB UART > > > [39987.190817] usb 1-5.1: Manufacturer: FTDI > > > [39987.190820] usb 1-5.1: SerialNumber: A903PDKT > > > [39989.127918] systemd-udevd: page allocation failure: order:4, mode:0x2040d0 > > > > This shows that you have some serious memory issues happening here :( > > Which part is showing this? Is the order too high? Unusual mode?
The page allocation failure of a "normal" allocation means that something is going wrong outside of the USB subsystem.
thanks,
greg k-h
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