Hi On Thu, 25 Nov 2010, Jean Pihet wrote: > On Thu, Nov 25, 2010 at 12:49 AM, Paul Walmsley <paul@xxxxxxxxx> wrote: > > > > The console semaphore must be held while the OMAP UART devices are > > disabled, lest a console write cause an ARM abort (and a kernel crash) > > when the underlying console device is inaccessible. These crashes > > only occur when the console is on one of the OMAP internal serial > > ports. > This does not fix the issue for me on Beagle (console on ttyO2). > > Doing: > / # echo 5 > /sys/devices/platform/omap/omap-hsuart.0/sleep_timeout > / # echo 5 > /sys/devices/platform/omap/omap-hsuart.1/sleep_timeout > / # echo 5 > /sys/devices/platform/omap/omap-hsuart.2/sleep_timeout > and waiting 5 seconds hangs the console. By the way, I just tried this on a Beagle 35xx rev C2, with Tony's commit 063d907edaf3fbf9776c189c3e02f2c7a129d18c, and did not see any hang. Are you using a linux-omap kernel? - Paul
