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Re: no match while resolving probe point kernel.function("printk")

From: Om <om dot turyx at gmail dot com>
Cc: systemtap at sourceware dot org
Date: Tue, 26 Aug 2008 17:28:13 -0700
Subject: Re: no match while resolving probe point kernel.function("printk")
References: <48B46A96.8090906@gmail.com> <y0m3akrxqa5.fsf@ton.toronto.redhat.com>

Frank Ch. Eigler wrote:

Om <om.turyx@gmail.com> writes:

I am trying to execute this script.
[...]
# stap -v -u printk-time-toggle.stp  1
[...]
semantic error: write to target variable not permitted: identifier
'$printk_time' at printk-time-toggle.stp:8:4
[...]


That's the key message there.  Since this script attempts to modify
a kernel variable, it needs to be run under guru mode ("stap -g ...").

Thanks. It is working as expected now.
Om.

References:
- no match while resolving probe point kernel.function("printk")
  - From: Om
- Re: no match while resolving probe point kernel.function("printk")
  - From: Frank Ch. Eigler

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