Please read this before reporting a bug:
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
FS#24404 - [kernel26] missing ftrace tracers
Attached to Project:
Arch Linux
Opened by John Skopis (johnskopis) - Monday, 23 May 2011, 20:28 GMT
Last edited by Tobias Powalowski (tpowa) - Tuesday, 07 June 2011, 07:53 GMT
Opened by John Skopis (johnskopis) - Monday, 23 May 2011, 20:28 GMT
Last edited by Tobias Powalowski (tpowa) - Tuesday, 07 June 2011, 07:53 GMT
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DetailsDescription:
not all ftrace tracers are enabled. Ideally at least CONFIG_FUNCTION_TRACER would be enabled. Additional info: * package version(s) Name : kernel26 Version : 2.6.38.3-1 * config and/or log files etc. [root@kenshin tracing]# zcat /proc/config.gz | grep -i 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 is not set # CONFIG_IRQSOFF_TRACER is not set # CONFIG_PREEMPT_TRACER is not set # CONFIG_SCHED_TRACER is not set # CONFIG_STACK_TRACER is not set Steps to reproduce: [root@kenshin debug]# cat tracing/available_tracers blk mmiotrace sched_switch nop |
This task depends upon
Closed by Tobias Powalowski (tpowa)
Tuesday, 07 June 2011, 07:53 GMT
Reason for closing: Implemented
Tuesday, 07 June 2011, 07:53 GMT
Reason for closing: Implemented
Comment by John Skopis (johnskopis) -
Monday, 23 May 2011, 20:41 GMT
some info about ftrace: http://lwn.net/Articles/322666/
Comment by Jelle van der Waa (jelly) -
Tuesday, 24 May 2011, 09:58 GMT
So why should we enable it?