valgrind detects invalid writes in _dl_allocate_tls* functions.

[PaweÅ Sikora <pluto at agmk dot net>]

hi,

i'm currently testing new toolchain on my application and getting
random sigsegv. the application uses threads for simple background
processing and works fine on earlier gcc-4.3/glibc-2.8/boost.thread triplet.

now on gcc-4.4/glibc-2.10.1/boost.thread valgrind reports such errors:

Invalid write of size 8                                                                                                                     
    at 0x40100F2: _dl_allocate_tls_init (in /lib64/ld-2.10.1.so)                                                                             
    by 0x5992C3C: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.10.1.so)                                                               
    by 0x54E0483: boost::thread::start_thread()
    (...)
Address 0x12f4ff30 is 0 bytes after a block of size 400 alloc'd
    at 0x4C21401: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-
linux.so)
    by 0x40108FE: _dl_allocate_tls (in /lib64/ld-2.10.1.so)
    by 0x5992FD0: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.10.1.so)
    by 0x54E0483: boost::thread::start_thread()
    (...)

Invalid write of size 1
    at 0x4010105: _dl_allocate_tls_init (in /lib64/ld-2.10.1.so)
    by 0x5992C3C: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.10.1.so)
    by 0x54E0483: boost::thread::start_thread()
    (...)
Address 0x12f4ff38 is 8 bytes after a block of size 400 alloc'd
    at 0x4C21401: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-
linux.so)
    by 0x40108FE: _dl_allocate_tls (in /lib64/ld-2.10.1.so)
    by 0x5992FD0: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.10.1.so)
    by 0x54E0483: boost::thread::start_thread()
    (...)

i suppose that something was wrongly compiled by new gcc but i don't know
how to isolate core of the problem. could anyone help me to track this?

thanks in advance.