Re: [uml-user] 2.4.19+hcd guest on a 2.6.x host

[Blaisorblade <bla...@ya...>]

On Thursday 01 January 1970 01:00, Felipe Andres Manzano wrote:
> Buenas,
>
> I need a RH9 UML with the usb-hdc patch on it. I've learned that the last
> uml-kernel that supports it is 2.4.19. So the problem arise...
>
> I'm trying to compile a 2.4.19 uml guest for it to run on a
> 2.6.12-1.1376_FC3smp. And ofcourse I can't make it work.
> First I blaim the compiler-libc combination so I've tried a few different
> ones with no success.
>
> gcc-3.3.4-glibc-2.3.5
> gcc-2.95.3-glibc-2.1.3
>
> Both of them (gcc-3.3.4 whit litle modifications on the kernel) ends up
> with an elf that sigfaults instantly.
The problem is that the host library is a TLS one... a patch was merged 
subsequently, but I doubt I can find it easily right now.

Maybe, IIRC, you can do on the host (since it's not a FC4) 
mv /lib/tls /lib/tls.off, to disable the host TLS libraries... I'm not sure 
though, so let us know.

> # gdb ./linux
> GNU gdb Red Hat Linux (6.1post-1.20040607.43rh)
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are welcome to change it and/or distribute copies of it under certain
> conditions. Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i386-redhat-linux-gnu"...Using host
> libthread_db library "/lib/tls/libthread_db.so.1".
>
> (gdb) r
> Starting program: /root/uml/kernel/linux/linux
> Reading symbols from shared object read from target memory...done.
> Loaded system supplied DSO at 0x585000
>
> Program received signal SIGSEGV, Segmentation fault.
> 0xa01732cc in __libc_setup_tls () at pgtable.h:266
> 266     {
> (gdb) where
> #0  0xa01732cc in __libc_setup_tls () at pgtable.h:266
> #1  0xa0173593 in __pthread_initialize_minimal () at pgtable.h:266
> #2  0xa0172fc6 in __libc_start_main () at pgtable.h:266
> #3  0xa000c021 in _start () at unistd.h:86
> (gdb)
>
>
> I've tried different configurations with and whitout skas/tt/2G2G.
> I would apreciate if someone point me some direction.
>
>
> regards,
> Felipe
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-- 
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

	

	
		
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