Re: Dynamic-ftrace not working in PlayStation3

On Thu, 2009-01-29 at 22:38 -0500, Steven Rostedt wrote:

On Thu, 29 Jan 2009, Geoff Levand wrote:

quoted

quoted

//*************************************************************************************************************************************
ip:d000000000045aec jumps to d000000000046340 r2: d000000000050c00
3d82ffff 398c5740 ffff5740 toc: d000000000046360 c0000000 00007cac
ip:d0000000000458d0 jumps to d000000000046340 r2: d000000000050c00
3d82ffff 398c5740 ffff5740 toc: d000000000046360 c0000000 00007cac
ip:d000000000045838 jumps to d000000000046340 r2: d000000000050c00
3d82ffff 398c5740 ffff5740 toc: d000000000046360 c0000000 00007cac
ip:d0000000000456dc jumps to d000000000046340 r2: d000000000050c00
3d82ffff 398c5740 ffff5740 toc: d000000000046360 c0000000 00007cac

...

So I take it that the above showed that the code worked for some?

quoted

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ps3_system_bus_match:362: dev=11.0(lpm_01), drv=11.0(ps3-lpm): match
ps3_system_bus_match:362: dev=11.0(lpm_01), drv=11.0(ps3-lpm): match
ps3-lpm lpm_01:  <- ps3_lpm_probe:1245:
ip:d0000000003fe280 jumps to d0000000003ffad8 r2: d000000000422c70

Could you find out what that function is? Perhaps do a:

	printk("ip:%pF\n", ip);

As long as you have kallsyms on, that should point to the function that's 
the problem.

quoted

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3d82fffe 398cce68 fffece68 toc: d00000000040faf8 6c656400 5f5f6b73
addr does not match
ptr: 6c6564005f5f6b73

ptr is the same info as the last line above.

6c656400 5f5f6b73 = "led\0__ks"

:)

quoted

--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c

@@ -23,7 +23,7 @@
 #if 0

Heh, I would have just done:

- #if 0
+ #if 1

;-)

Should do s/DEBUGP/pr_debug/g

cheers


-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

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we borrow it from our children. - S.M.A.R.T Person