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Re: staprun segmentation fault with module `fglrx' in use
- From: Martin Hunt <hunt at redhat dot com>
- To: éåç <guanqun dot lu at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Sun, 18 Mar 2007 17:20:06 -0400
- Subject: Re: staprun segmentation fault with module `fglrx' in use
- Organization: Red Hat Inc.
- References: <e57070790703180408m621a0a10we03653901d168953@mail.gmail.com>
On Sun, 2007-03-18 at 11:08 +0000, éåç wrote:
> Hi all,
>
> I'm using a ATI graphics card, therefore I chose to use the driver
> `fglrx' provided by ATI.
> But then, I got `segmentation fault' error when I tried to use the
> staprun command.
> After I removed the module `fglrx', it didn't show the seg fault. And
> it didn't show the "hello world"
> either. :-(
Thanks for reporting this. I don't have a recent ATI card so I'll have
to help you debug this. Please try the following.
1. Update from CVS and repeat tests.
2. Please send me or post output of "ls -alR /sys/module/flgrx"
3. Check /var/log/messages. Any systemtap messages?
4. In your sources/ "#define DEBUG" near top of
runtime/staprun/staprun.h and runtime/runtime.h
5. Rebuild and reinstall systemtap with debug messages.
6. Rerun with "stap -vv" What is console and /var/log/messages output?
Martin