[Crash-utility] Re: [RFC] Crash extension for SystemTap

[Satoru MORIYA]

Hi Frank,

Thank you for including the crash extension in systemtap tree.
And I'm sorry for delaying my reply for a long time.

 > [...]I could not make it print data from a crash session running
 > against the live kernel [...]

I'm Sorry, I didn't test my crash extension on x86_64.
Now I tested it on x86_64 and fixed bugs, so I think you can
use it on x86_64 architecture.

Changes:
  - fix the way of calculating the offset of rchan in struct utt_trace
  - fix the type of padding value in output_cpu_logs()
  - fix the console messages
  - don't make a directory and files if there's no data in relay buffer

I have tested this extention on the following systems:
* FC7,i386,kernel-2.6.22,systemtap-0.5.15,crash-4.0-4.5
* FC7,x86_64,kernel-2.6.21-1.3194.fc7,systemtap-0.5.15,crash-4.0-4.5
* FC7,x86_64,kernel-2.6.21-1.3194.fc7debug,systemtap-0.5.15,crash-4.0-4.5
* RHEL5,i386,kernel-2.6.18-8.el5,systemtap-0.5.15,crash-4.0-4.5
* RHEL5,ia64,kernel-2.6.18-8.el5,systemtap-0.5.15,crash-4.0-4.5

Best regards,

-- 
---
Satoru MORIYA
Linux Technology Center
Hitachi, Ltd., Systems Development Laboratory
E-mail: satoru.moriya.br at hitachi.com
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