My test case now works!! with init=/bin/sh I can now do ls and get a working listing!
Now to run up the standard init. > Again, not needed. With FC4 guests, it may be useful to do this: > ./linux <params...> LD_LIBRARY_PATH=/lib/obsolete/linuxthreads It is very useful. Ah - can't find the modules.dep. I need to install them into the image..... The magic piece was from this post: ----- Original Message ----- From: "Blaisorblade" <[EMAIL PROTECTED]> To: <user-mode-linux-user@lists.sourceforge.net> Cc: "Alexei Potashnik" <[EMAIL PROTECTED]> Sent: Thursday, August 04, 2005 4:21 AM Subject: Re: [uml-user] host/guest setup to debug with frame pointers > On Tuesday 02 August 2005 03:07, Alexei Potashnik wrote: > > Could somebody, please, recommend a stable combination of > > the host/guest that was successfully debugged with gdb. > > > > I've looked through blaisorblade's site that this mailing list archive > > and tried the following combinations: > > > > 1. First of all it seems that CONFIG_FRAME_POINTER became > > supported for UML starting with 2.6.11. So I tried 2.6.11+bs4 > > and 2.6.12+bs9 > It just seems. Actually, at that point it was only separated from DEBUG_INFO; > before, any kernel built with debugging info had frame pointers enabled > (which is reasonable). > > I changed that because I wanted to build kernel without debug info but with > frame pointers (that is very useful for getting correct stack traces from the > kernel, for instance on panics or Oopses). > > 2. For the guest file system, I used fc3 image from > > http://www.stearns.org/uml-root/ > > Also, I moved /usr/lib/tls to /usr/lib/tls.away inside the image. > The important one is /lib/tls to /lib/tls.away... > > 3. For the host, I've tried FC3, FC4 and FC4 with latest updates. > > Usually I run smp image, but I've tried single-processor versions > > as well. > That shouldn't matter. > > On FC3 I've also tried renaming /lib/tls and /usr/lib/tls. > For the host, this shouldn't be needed. > > On FC4 I tried running guest with > > LD_LIBRARY_PATH=/lib/obsolete/linuxthreads > Again, not needed. With FC4 guests, it may be useful to do this: > ./linux <params...> LD_LIBRARY_PATH=/lib/obsolete/linuxthreads > > so that the env. var is seen *inside* UML, since there you cannot do > "mv /lib/tls /lib/tls.away". > > 4. I used 6.1 gdb on FC3 and 6.1.1, 6.2.1 and 6.3 gdb on FC4 > > (6.3 is really bad... crashes as soon as you try to do list). > > I'm able to debug 2.4.27 guest on RH9, but there is not frame pointers > > in 2.4.27 UML. That is my goal. So any suggestions on getting host/guest > > setup for debugging guest with frame pointer will be greatly appreciated. > Think a 2.6 guest would work as well on RH9 - the only problem is newer GDB > releases, as explained by Jeff. But again, even 2.4 kernels *has* frame > pointers (just verified - even if it's not enabled inside .config, but just > from arch/um/Makefile). > > Debugging in SKAS (SKAS0 or SKAS3) mode works much better... > -- > Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". > Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) > http://www.user-mode-linux.org/~blaisorblade > > > ___________________________________ > Yahoo! Mail - proteggi la tua casella di posta da virus > e posta indesiderata > http://mail.yahoo.it > > > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. Find simple to follow Roadmaps, straightforward articles, > informative Webcasts and more! Get everything you need to get up to > speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click > _______________________________________________ > User-mode-linux-user mailing list > User-mode-linux-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
