Two more possibly useful information: $ grep '^config' kernel/trace/Kconfig config HAVE_FTRACE config HAVE_DYNAMIC_FTRACE config TRACER_MAX_TRACE config TRACING config FTRACE config IRQSOFF_TRACER config PREEMPT_TRACER config SYSPROF_TRACER config SCHED_TRACER config CONTEXT_SWITCH_TRACER config DYNAMIC_FTRACE config FTRACE_SELFTEST config FTRACE_STARTUP_TEST $ grep trace .config -i CONFIG_STACKTRACE_SUPPORT=y # CONFIG_HAVE_ARCH_TRACEHOOK is not set CONFIG_BLK_DEV_IO_TRACE=y CONFIG_CAN_PM_TRACE=y # CONFIG_PM_TRACE_RTC is not set CONFIG_NETFILTER_XT_TARGET_TRACE=m # CONFIG_SCSI_IPR_TRACE is not set CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_TRACE_IRQFLAGS=y CONFIG_STACKTRACE=y # CONFIG_BACKTRACE_SELF_TEST is not set CONFIG_HAVE_FTRACE=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_TRACER_MAX_TRACE=y CONFIG_FTRACE=y CONFIG_IRQSOFF_TRACER=y CONFIG_SYSPROF_TRACER=y CONFIG_SCHED_TRACER=y CONFIG_CONTEXT_SWITCH_TRACER=y # CONFIG_FTRACE_STARTUP_TEST is not set # CONFIG_MMIOTRACE is not set # CONFIG_KVM_TRACE is not set On Fri, Apr 10, 2009 at 12:43 AM, Sukanto Ghosh <sukanto.cse.iitb@xxxxxxxxx> wrote: > Hi, > > On Thu, Apr 9, 2009 at 7:15 PM, Sharwan Joram <sharwan.joram@xxxxxxxxx> wrote: >> You need to configure you kernel with CONFIG_FUNCTION_TRACER enabled. > > My kernel version is 2.6.27.4 > Fedora Core 9 > > In menuconfig I enabled the options > "Kernel Hacking -> Kernel Function Tracer" > "Kernel Hacking -> interrupts-off Latency Tracer" > "Kernel Hacking -> Sysprof Tracer" > "Kernel Hacking -> Scheduling Latency Tracer" > "Kernel Hacking -> Trace process context-switches" > > output of 'grep -i ftrace .config' : > CONFIG_HAVE_FTRACE = y > CONFIG_HAVE_DYNAMIC_FTRACE = y > CONFIG_FTRACE = y > > > On Thu, Apr 9, 2009 at 9:06 PM, Mulyadi Santosa > <mulyadi.santosa@xxxxxxxxx> wrote: >> And don't forget to read this LWN page http://lwn.net/Articles/322666/ > > I went through the Documentation/ftrace.txt as well > > > When I do 'make' and 'make modules_install' everything goes fine. But > during 'make install' it gives lots of warnings (the entire output is > attached), parts of which look like the following: > > > [...] > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol rpc_shutdown_client > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol auth_domain_find > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol svc_recv > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol xdr_inline_decode > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol svc_reserve > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol svc_max_payload > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol svc_exit_thread > WARNING: /lib/modules/2.6.27.4/kernel/fs/nfsd/nfsd.ko needs unknown > symbol xdr_encode_opaque > [...] > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/dm9601.ko needs > unknown symbol mii_nway_restart > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/dm9601.ko needs > unknown symbol generic_mii_ioctl > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/dm9601.ko needs > unknown symbol mii_ethtool_gset > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/usbnet.ko needs > unknown symbol mii_ethtool_sset > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/usbnet.ko needs > unknown symbol mii_link_ok > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/usbnet.ko needs > unknown symbol mii_nway_restart > WARNING: /lib/modules/2.6.27.4/kernel/drivers/net/usb/usbnet.ko needs > unknown symbol mii_ethtool_gset > [...] > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_device_set_state > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_eh_finish_cmd > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_device_put > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_eh_flush_done_q > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_host_put > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_add_host > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_rescan_device > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_adjust_queue_depth > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_execute > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_build_sense_buffer > WARNING: /lib/modules/2.6.27.4/kernel/drivers/ata/libata.ko needs > unknown symbol scsi_req_abort_cmd > [...] > WARNING: /lib/modules/2.6.27.4/kernel/drivers/acpi/video.ko needs > unknown symbol video_output_register > WARNING: /lib/modules/2.6.27.4/kernel/drivers/acpi/video.ko needs > unknown symbol video_output_unregister > WARNING: /lib/modules/2.6.27.4/kernel/drivers/auxdisplay/cfag12864bfb.ko > needs unknown symbol fb_sys_write > WARNING: /lib/modules/2.6.27.4/kernel/drivers/auxdisplay/cfag12864bfb.ko > needs unknown symbol sys_imageblit > WARNING: /lib/modules/2.6.27.4/kernel/drivers/auxdisplay/cfag12864bfb.ko > needs unknown symbol sys_fillrect > WARNING: /lib/modules/2.6.27.4/kernel/drivers/auxdisplay/cfag12864bfb.ko > needs unknown symbol sys_copyarea > WARNING: /lib/modules/2.6.27.4/kernel/drivers/auxdisplay/cfag12864bfb.ko > needs unknown symbol fb_sys_read > WARNING: No module ehci-hcd found for kernel 2.6.27.4, continuing anyway > WARNING: No module ohci-hcd found for kernel 2.6.27.4, continuing anyway > WARNING: No module uhci-hcd found for kernel 2.6.27.4, continuing anyway > > > What am I doing wrong ? > > > > -- > Regards, > Sukanto Ghosh > -- Regards, Sukanto Ghosh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
