Hi all, I am unable to enable ftrace on the 3.0.0-rc2. Have tried with Codesourcery toolchain using GCC v4.3.3 and 4.5.1. Before moving to debug, I just wanted to know if it is a known problem. ~sanjeev Linux version 3.0.0-rc2-11092-gc04c67c (premi@mylinux) (gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50) ) #2 SMP Mon Jun 13 15:23:22 IST 2011 [root@OMAP3EVM tracing]# uname -a Linux OMAP3EVM 3.0.0-rc2-11092-gc04c67c #2 SMP Mon Jun 13 15:23:22 IST 201 1 armv7l GNU/Linux [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# zcat /proc/config.gz | grep TRACER CONFIG_NOP_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_GENERIC_TRACER=y CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y # CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set CONFIG_STACK_TRACER=y [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# dmesg | grep -i tracer [ 0.841461] Testing tracer function: PASSED [ 1.932708] Testing tracer function_graph: [ 1.933349] Failed to init function_graph tracer, init returned -19 [ 5.950775] Failed to enable function tracer for event tests [root@OMAP3EVM tracing]# pwd root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# cat available_tracers nop Linux version 3.0.0-rc2-11092-gc04c67c (premi@mylinux) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #3 SMP Mon Jun 13 17:29:19 IST 2011 [ 5.845520] Testing all events: OK [ 5.898864] ------------[ cut here ]------------ [ 5.903808] WARNING: at kernel/trace/trace_events.c:1662 event_trace_s elf_tests_init+0x5c/0x80() [ 5.913085] Modules linked in: [ 5.916351] [<c007ac20>] (unwind_backtrace+0x0/0x104) from [<c04bbb3c>] (dump_stack+0x20/0x24) [ 5.925476] [<c04bbb3c>] (dump_stack+0x20/0x24) from [<c00b3c78>] (warn _slowpath_common+0x5c/0x74) [ 5.934967] [<c00b3c78>] (warn_slowpath_common+0x5c/0x74) from [<c00b3c bc>] (warn_slowpath_null+0x2c/0x34) [ 5.945190] [<c00b3cbc>] (warn_slowpath_null+0x2c/0x34) from [<c0020ecc >] (event_trace_self_tests_init+0x5c/0x80) [ 5.956054] [<c0020ecc>] (event_trace_self_tests_init+0x5c/0x80) from [<c0066598>] (do_one_initcall+0x44/0x194) [ 5.966705] [<c0066598>] (do_one_initcall+0x44/0x194) from [<c0008454>] (kernel_init+0xbc/0x170) [ 5.976013] [<c0008454>] (kernel_init+0xbc/0x170) from [<c0073ab8>] (ke rnel_thread_exit+0x0/0x8) [ 5.985321] ---[ end trace 3c0bd3405257eb98 ]--- [ 5.990203] Failed to enable function tracer for event tests [root@OMAP3EVM tracing]# uname -a Linux OMAP3EVM 3.0.0-rc2-11092-gc04c67c #3 SMP Mon Jun 13 17:29:19 IST 2011 armv7l GNU/Linux [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# cat available_tracers nop [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# [root@OMAP3EVM tracing]# zcat /proc/config.gz | grep TRACER CONFIG_NOP_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_GENERIC_TRACER=y CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y # CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set CONFIG_STACK_TRACER=y [root@OMAP3EVM tracing]# -- 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
