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error for using oprofile.ko to profiling

Question asked by jojo rong on May 16, 2013
Latest reply on Sep 20, 2013 by Daiane Angolini

Hi,

  I use the oprofile to measured the performance of my application, there something wrong to use the oprofile.ko as following in yocto "dylan":

 

  It's known issue or bug ?

 

root@imx6qsabresd:~# opcontrol --start --separate=lib --no-vmlinux -c 5

oprofile: using arm/armv7-ca9

ATTENTION: Use of opcontrol is discouraged.  Please see the man page for operf.

Detected stale lock file. Removing.

Using default event: CPU_CYCLES:100000:0:1:1

Using 2.6+ OProfile kernel interface.

Using log file /var/lib/oprofile/samples/oprofiled.log

Daemon started.

irq 126: nobody cared (try booting with the "irqpoll" option)

[<800478f0>] (unwind_backtrace+0x0/0xf8) from [<800b08e4>] (__report_bad_irq+0x24/0xc0)

[<800b08e4>] (__report_bad_irq+0x24/0xc0) from [<800b0c2c>] (note_interrupt+0x1ec/0x248)

[<800b0c2c>] (note_interrupt+0x1ec/0x248) from [<800af168>] (handle_irq_event_percpu+0xa8/0x180)

[<800af168>] (handle_irq_event_percpu+0xa8/0x180) from [<800af27c>] (handle_irq_event+0x3c/0x5c)

[<800af27c>] (handle_irq_event+0x3c/0x5c) from [<800b15f0>] (handle_fasteoi_irq+0x98/0x158)

[<800b15f0>] (handle_fasteoi_irq+0x98/0x158) from [<800aea68>] (generic_handle_irq+0x20/0x34)

[<800aea68>] (generic_handle_irq+0x20/0x34) from [<800419b0>] (handle_IRQ+0x4c/0xb0)

[<800419b0>] (handle_IRQ+0x4c/0xb0) from [<80040b4c>] (__irq_svc+0x4c/0xe8)

[<80040b4c>] (__irq_svc+0x4c/0xe8) from [<80079618>] (__do_softirq+0x50/0x150)

[<80079618>] (__do_softirq+0x50/0x150) from [<80079ba0>] (irq_exit+0x94/0x9c)

[<80079ba0>] (irq_exit+0x94/0x9c) from [<8003b1c8>] (do_local_timer+0x70/0x94)

[<8003b1c8>] (do_local_timer+0x70/0x94) from [<80040b4c>] (__irq_svc+0x4c/0xe8)

Exception stack(0xba99bd68 to 0xba99bdb0)

bd60:                   bf1b5800 bf1b6000 00000020 0000001f bf4ac000 bf1b5000

bd80: 2ad3e000 8bfe36a0 0004f4ac ba954ab0 bac5aea0 00000002 00000000 ba99bdb0

bda0: 8004dc08 8004dad0 800f0113 ffffffff

[<80040b4c>] (__irq_svc+0x4c/0xe8) from [<8004dad0>] (v7_flush_kern_dcache_area+0x28/0x3c)

[<8004dad0>] (v7_flush_kern_dcache_area+0x28/0x3c) from [<8004dc08>] (v6_copy_user_highpage_nonaliasing+0x40/0x54)

[<8004dc08>] (v6_copy_user_highpage_nonaliasing+0x40/0x54) from [<800dc8d8>] (do_wp_page+0xe4/0x72c)

[<800dc8d8>] (do_wp_page+0xe4/0x72c) from [<800de8d8>] (handle_pte_fault+0x3b0/0x7d8)

[<800de8d8>] (handle_pte_fault+0x3b0/0x7d8) from [<800dedd0>] (handle_mm_fault+0xd0/0x120)

[<800dedd0>] (handle_mm_fault+0xd0/0x120) from [<8004b3a0>] (do_page_fault+0x18c/0x2f8)

[<8004b3a0>] (do_page_fault+0x18c/0x2f8) from [<8003b370>] (do_DataAbort+0x34/0x98)

[<8003b370>] (do_DataAbort+0x34/0x98) from [<80041084>] (ret_from_exception+0x0/0x10)

Exception stack(0xba99bfb0 to 0xba99bff8)

bfa0:                                     00000328 00000000 00000000 0000029d

bfc0: 00000328 00000000 47f01400 00000078 2ad3e4c0 0016b948 0000029d 7ee649c4

bfe0: 00000000 7ee649a8 2ad3e000 47e6bf20 600f0010 ffffffff

handlers:

[<80049c24>] armv7pmu_handle_irq

Disabling IRQ #126

Profiler running.

 

root@imx6qsabresd:~# testprogram

 

root@imx6qsabresd:~# opcontrol --stop

Stopping profiling.

root@imx6qsabresd:~# opreport -l testprogram > ~/imx6.op.txt

Using /var/lib/oprofile/samples/ for samples directory.

error: no sample files found: profile specification too strict ?

 

 

 

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