On Thu, Apr 14, 2016 at 6:50 PM, Bin Liu <b-liu@xxxxxx> wrote: > Hi, > > On Thu, Apr 07, 2016 at 09:09:50AM +0200, Yegor Yefremov wrote: >> >> Could you then look at the freeze issue with removing FTDI device >> >> during it is working? >> > >> > I can. I will have to first locate a FT4243H device. >> >> Insert MA260 and execute following command: >> >> cat /dev/zero > /dev/ttyUSB2 >> >> then remove MA260 - system freezes. > > Can you please try the patch [1] to see if it fixes the system freezing > issue? > > [1] http://marc.info/?l=linux-usb&m=144683124825113&w=2 I've tested this patch with both FTDI FT4232HS as also Huawei ME909u-521. I can produce a freeze with both devices. Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html