Hi, When i mount device module such as ti_scm, usb via simplebus not nexus, i got an error:
*** LIBBSD MEDIA 1 TEST *** nexus0: <RTEMS Nexus device> ofwbus0: <Open Firmware Device Tree> on nexus0 simplebus0: <Flattened device tree simple bus> on ofwbus0 simplebus1: <Flattened device tree simple bus> on simplebus0 simplebus2: <Flattened device tree simple bus> mem 0x210000-0x211fff on simpleb1 ti_scm0: <TI Control Module> mem 0-0x7ff on simplebus2 ti_scm0: could not allocate resources device_attach: ti_scm0 attach returned 6 I use gdb to debug it: (gdb) bt #0 _bsd_kobj_error_method () at ../../freebsd/sys/kern/subr_kobj.c:97 #1 0x8002763c in BUS_ACTIVATE_RESOURCE (_r=0x804fddd0, _rid=<optimized out>, _type=3, _child=0x804fd7a0, _dev=0x804f8dd8) at ../../rtemsbsd/include/rtems/bsd/local/bus_if.h:339 #2 _bsd_bus_activate_resource (dev=dev@entry=0x804fd7a0, type=type@entry=3, rid=<optimized out>, r=r@entry=0x804fddd0) at ../../freebsd/sys/kern/subr_bus.c:4504 #3 0x800034f4 in ofwbus_alloc_resource (bus=0x804f7428, child=0x804fd7a0, type=3, rid=0x804019ac <am335x_prcm_spec+4>, start=9224063442842802440, end=1155530752, count=1155547135, flags=2) at ../../freebsd/sys/dev/ofw/ofwbus.c:229 #4 0x800274d4 in BUS_ALLOC_RESOURCE (_flags=<optimized out>, _count=1, _end=18446744073709551615, _start=0, _rid=0x804019ac <am335x_prcm_spec+4>, _type=<optimized out>, _child=<optimized out>, _dev=<optimized out>) at ../../rtemsbsd/include/rtems/bsd/local/bus_if.h:310 #5 _bsd_bus_alloc_resource (flags=<optimized out>, count=1, end=18446744073709551615, start=0, rid=0x804019ac <am335x_prcm_spec+4>, type=<optimized out>, dev=0x804fd7a0) at ../../freebsd/sys/kern/subr_bus.c:4473 #6 bus_alloc_resource_any (flags=<optimized out>, rid=0x804019ac <am335x_prcm_spec+4>, type=<optimized out>, dev=0x804fd7a0) at ../../freebsd/sys/sys/bus.h:544 #7 _bsd_bus_alloc_resources (dev=dev@entry=0x804fd7a0, rs=0x804f8dd8, rs@entry=0x804019a8 <am335x_prcm_spec>, res=res@entry=0x804fd908) at ../../freebsd/sys/kern/subr_bus.c:4435 #8 0x80001664 in am335x_prcm_attach (dev=0x804fd7a0) at ../../freebsd/sys/arm/ti/am335x/am335x_prcm.c:438 #9 0x80025730 in DEVICE_ATTACH (dev=0x804fd7a0) at ../../rtemsbsd/include/rtems/bsd/local/device_if.h:180 #10 _bsd_device_attach (dev=dev@entry=0x804fd7a0) at ../../freebsd/sys/kern/subr_bus.c:2947 #11 0x800265f8 in _bsd_device_probe_and_attach (dev=dev@entry=0x804fd7a0) at ../../freebsd/sys/kern/subr_bus.c:2903 #12 0x800268fc in _bsd_bus_generic_attach (dev=dev@entry=0x804f8dd8) at ../../freebsd/sys/kern/subr_bus.c:3714 #13 0x8000248c in simplebus_attach (dev=0x804f8dd8) at ../../freebsd/sys/dev/fdt/simplebus.c:164 #14 0x80025730 in DEVICE_ATTACH (dev=0x804f8dd8) at ../../rtemsbsd/include/rtems/bsd/local/device_if.h:180 #15 _bsd_device_attach (dev=dev@entry=0x804f8dd8) at ../../freebsd/sys/kern/subr_bus.c:2947 #16 0x800265f8 in _bsd_device_probe_and_attach (dev=dev@entry=0x804f8dd8) at ../../freebsd/sys/kern/subr_bus.c:2903 #17 0x800268fc in _bsd_bus_generic_attach (dev=dev@entry=0x804f84d0) at ../../freebsd/sys/kern/subr_bus.c:3714 #18 0x8000248c in simplebus_attach (dev=0x804f84d0) at ../../freebsd/sys/dev/fdt/simplebus.c:164 #19 0x80025730 in DEVICE_ATTACH (dev=0x804f84d0) at ../../rtemsbsd/include/rtems/bsd/local/device_if.h:180 #20 _bsd_device_attach (dev=dev@entry=0x804f84d0) at ../../freebsd/sys/kern/subr_bus.c:2947 #21 0x800265f8 in _bsd_device_probe_and_attach (dev=dev@entry=0x804f84d0) at ../../freebsd/sys/kern/subr_bus.c:2903 #22 0x800268fc in _bsd_bus_generic_attach (dev=dev@entry=0x804f7428) at ../../freebsd/sys/kern/subr_bus.c:3714 #23 0x80003634 in ofwbus_attach (dev=0x804f7428) at ../../freebsd/sys/dev/ofw/ofwbus.c:181 #24 0x80025730 in DEVICE_ATTACH (dev=0x804f7428) at ../../rtemsbsd/include/rtems/bsd/local/device_if.h:180 #25 _bsd_device_attach (dev=dev@entry=0x804f7428) at ../../freebsd/sys/kern/subr_bus.c:2947 #26 0x800265f8 in _bsd_device_probe_and_attach (dev=dev@entry=0x804f7428) at ../../freebsd/sys/kern/subr_bus.c:2903 #27 0x800268fc in _bsd_bus_generic_attach (dev=<optimized out>) at ../../freebsd/sys/kern/subr_bus.c:3714 #28 0x80025730 in DEVICE_ATTACH (dev=0x804f72b0) at ../../rtemsbsd/include/rtems/bsd/local/device_if.h:180 #29 _bsd_device_attach (dev=dev@entry=0x804f72b0) at ../../freebsd/sys/kern/subr_bus.c:2947 #30 0x800265f8 in _bsd_device_probe_and_attach (dev=dev@entry=0x804f72b0) at ../../freebsd/sys/kern/subr_bus.c:2903 #31 0x80026d0c in _bsd_bus_generic_new_pass (dev=0x804f3ce0) at ../../freebsd/sys/kern/subr_bus.c:4000 #32 0x800252b4 in BUS_NEW_PASS (_dev=0x804f3ce0) at ../../rtemsbsd/include/rtems/bsd/local/bus_if.h:938 #33 _bsd_bus_set_pass (pass=2147483647) at ../../freebsd/sys/kern/subr_bus.c:987 #34 0x800b8c08 in _bsd_mi_startup () at ../../freebsd/sys/kern/init_main.c:306 #35 0x80082568 in rtems_bsd_initialize () at ../../rtemsbsd/rtems/rtems-kernel-init.c:158 #36 0x800007c4 in Init (arg=<optimized out>) at ../../testsuite/include/rtems/bsd/test/default-network-init.h:271 #37 0x801899b0 in _Thread_Handler () at ../../../../../../rtems/c/src/../../cpukit/score/src/threadhandler.c:88 #38 0x80171258 in _Thread_Life_action_handler (executing=0x0, action=<optimized out>, lock_context=0x0) at ../../../../../../rtems/c/src/../../cpukit/score/src/threadrestart.c:379 #39 0x00000000 in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) It seems error came from using a resource that should be activated. the ofwbus_activate_resource is not exist. So whether someone has been successful in porting a driver that uses simplebus in libbsd and that uses a resource that should be activated. Best Regards Sichen Zhao _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel