Environemnt: a system with a generic serial console and OTG capability. The generic serial console comes up when the system starts. After that I add the USB console with: usbmode device usbserial -a cs1.active=ioe After these commands both consoles are working as expected. But then I want to disable the generic serial console: barebox@Bosch SCM:/ cs0.active= unable to handle NULL pointer dereference at address 0x00000000 pc : [<4301e0dc>] lr : [<43004d40>] sp : 40fff960 ip : 0000000a fp : 00000000 r10: 00000000 r9 : 00000000 r8 : 410ebda8 r7 : 00000000 r6 : 41002ad8 r5 : 00000000 r4 : 410029b4 r3 : 43004d1c r2 : 00000003 r1 : 00000069 r0 : 00000000 Flags: nZCv IRQs off FIQs off Mode SVC_32 [<4301e0dc>] (_strchr+0x18/0x34) from [<43004d40>] (console_std_set+0x24/0xe4) [<43004d40>] (console_std_set+0x24/0xe4) from [<4301f314>] (dev_set_param+0x74/0x8c) [<4301f314>] (dev_set_param+0x74/0x8c) from [<430057dc>] (setenv+0x60/0xd4) [<430057dc>] (setenv+0x60/0xd4) from [<4300100c>] (set_local_var.isra.2+0x58/0x78) [<4300100c>] (set_local_var.isra.2+0x58/0x78) from [<430016d4>] (run_list_real+0x504/0x9dc) [<430016d4>] (run_list_real+0x504/0x9dc) from [<43001cf4>] (parse_stream_outer+0x148/0x238) [<43001cf4>] (parse_stream_outer+0x148/0x238) from [<4300207c>] (run_shell+0x3c/0x7c) [<4300207c>] (run_shell+0x3c/0x7c) from [<43004c38>] (execute_command+0x38/0x7c) [<43004c38>] (execute_command+0x38/0x7c) from [<43001aac>] (run_list_real+0x8dc/0x9dc) [<43001aac>] (run_list_real+0x8dc/0x9dc) from [<43001608>] (run_list_real+0x438/0x9dc) [<4302e184>] (unwind_backtrace+0x0/0x9c) from [<4301eee0>] (panic+0x28/0x3c) [<4301eee0>] (panic+0x28/0x3c) from [<4302e65c>] (do_exception+0x10/0x14) [<4302e65c>] (do_exception+0x10/0x14) from [<4302e6e8>] (do_data_abort+0x2c/0x38) [<4302e6e8>] (do_data_abort+0x2c/0x38) from [<4302e3b0>] (data_abort+0x50/0x60) Known/intended behaviour? jbe -- Pengutronix e.K. | Juergen Beisert | Linux Solutions for Science and Industry | http://www.pengutronix.de/ | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
