This is the mail archive of the systemtap@sourceware.org mailing list for the systemtap project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: guru mode: invalid module format

On Thu, Jun 13, 2019, at 7:48 PM, Frank Ch. Eigler wrote:
> Thanks for your patience.  I have not been able to reproduce this here
> on Fedora, so didn't look deeper until today.  I believe the problem
> may be buildrun.cxx:124, which for guru mode adds a
> CONFIG_MODEVERSIONS= override into the module kbuild makefile.
> Non-fedora kernels may interpret this differently.
I haven't been able to reproduce on Ubuntu either. Trying to think if there's any other distribution/kernel where this option is likely to work differently.

The reproduction steps point to another potential problem -- the regular and guru mode scripts are being compiled differently, but they appear to be treated equivalently by stap's compilation cache. Therefore deleting the cache changes the outcome of $ stap helloworld.stp -g

-- 
All the best,
    Serhei
    https://serhei.io
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]