Multi threading problem

[Etienne DUCAMP]

Dear glibc maintainers,

    I made a multi threading application. When the program work with 700
threads, several seconds after I have the following message :

./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries: ./butineur_html_R:
symbol perror, version GLIBC_2.0 not defined in file libc.so.6 with link
time reference
./butineur_html_R: error in loading shared libraries:
/lib/libpthread.so.0: symbol munmap, version GLIBC_2.0 not defined in
file libc.so.6 with link time reference

    butineur_html_R is program name.

Then several hundreds of threads died ( ~ 200 ). And the program continue 
normally.

Do you have any ideas ...

Thanks in advance,

Etienne DUCAMP