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Re: help! staprun no respose in pass 5
- From: Lukas Berk <lberk at redhat dot com>
- To: lon chin <chinlon123 at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Wed, 24 Dec 2014 13:54:16 -0500
- Subject: Re: help! staprun no respose in pass 5
- Authentication-results: sourceware.org; auth=none
- References: <CAA9v2ZK2n_axi=uGRz261rtqStnD8R-Hn=1BCdwBR6udYZPAWQ at mail dot gmail dot com>
Hi,
lon chin <chinlon123@gmail.com> writes:
[...]
> I build linux kernel 3.16.5,emerge systemtap.
> run a test `stap -vv -e 'probe begin{printf("hello");exit()}'`
>
> but no response after pass 5.
> the tail stdout is :
> Pass 5: starting run.
> Running /usr/bin/staprun -v -R
> /tmp/stapKlIFxX/stap_fe4fd472898f50668e6f2cea07dae8c9_859.ko
> staprun:disable_kprobes_optimization:327 Disabled
> /proc/sys/debug/kprobes-optimization.
> staprun:insert_module:183 Module
> stap_fe4fd472898f50668e6f2cea07dae8c_2117 inserted from file
> /tmp/stapKlIFxX/stap_fe4fd472898f50668e6f2cea07dae8c9_859.ko
If you could provide more information, such as what's reported from the
'stap-report' tool, it could help narrow down what may be at play here.
What kernel options have you built with? What version of systemtap are
you using? What architecture are you on?
Cheers,
Lukas