[SOLVED] Re: [Qemu-devel] 32bit emulation in x86_64 System emulation

[Mario Goppold <mgoppold@tbz-pariv.de>]

Hi list,

i have found some partial solutions for my problem:

1st: write a script for individual programs
   #!/bin/sh
   export LD_ASSUME_KERNEL=2.4 # this disables tls
   a.out # or some useful

2nd: disable thread-local storage (tls) for 32-bit programs
   mv /lib/tls /lib/tls.disabled
   ldconfig

Mario.
 
Am Donnerstag, 27. Oktober 2005 08:37 schrieb Mario Goppold:
> Hi list,
>
> I've tried to install SuSE92 x68_64 as guest (qemu 0.7.2 with and without
> kqemu). During the install grub terminates with core. But not only grub
> terminates:
>
>   #include <stdio.h>
>   int main() {
>     printf("Hallo Welt!\n");
>     return 0;
>   }
>
>   gcc a.c ; ./a.out is ok but
>   gcc -m32 a.c; ./a.out Segmentation fault (core dumped)
>
> with gdb:
>   Core was generated by `./a.out'.
>   Program terminated with signal 11, Segmentation fault.
>
>   warning: current_sos: Can't read pathname for load map: Input/output
> error
>
>   Reading symbols from /lib/tls/libc.so.6...done.
>   Loaded symbols for /lib/tls/libc.so.6
>   Reading symbols from /lib/ld-linux.so.2...done.
>   Loaded symbols for /lib/ld-linux.so.2
>   #0  0x5568aff4 in ?? () from /lib/tls/libc.so.6
>   (gdb) where
>   #0  0x5568aff4 in ?? () from /lib/tls/libc.so.6
>   #1  0x555d4bf3 in _IO_file_stat_internal () from /lib/tls/libc.so.6
>   #2  0x555d4bf3 in _IO_file_stat_internal () from /lib/tls/libc.so.6
>   #3  0x555ca494 in _IO_file_doallocate_internal () from /lib/tls/libc.so.6
>   #4  0x555d77be in _IO_doallocbuf_internal () from /lib/tls/libc.so.6
>   #5  0x555d550a in _IO_new_file_overflow () from /lib/tls/libc.so.6
>   #6  0x555d49fd in _IO_new_file_xsputn () from /lib/tls/libc.so.6
>   #7  0x555b25e8 in vfprintf () from /lib/tls/libc.so.6
>   #8  0x555ba7b0 in printf () from /lib/tls/libc.so.6
>   #9  0x080483e0 in main () at a.c:4
>
> What's worng? Outside of qemu it works fine.
> In the meantime i've found out that's not (only) a SuSE problem:
>
> SuSE92, SuSE93, SuSE10, FC4 fails but Ubuntu 5.10 works fine (all in
> x86_64).
>
> Have anyone see this behaviour. What can i do?
>
> Mario
>
>
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