__tls_get_addr problem with recent current

After updating the kernel and before installworld processes randomly
crash on startup.
Userland is ~2 months old amd64 current.
I wonder if this is because of the OS mix or a general problem right
now.
It seems that process only crash if I'm logged in via ssh/telnet but
not on console, so I might be able to installworld from console.

One example:
[59]cicely14# gdb /bin/cat cat.core 
GNU gdb 6.1.1 [FreeBSD]
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 "amd64-marcel-freebsd"...(no debugging symbols found)...
Core was generated by `cat'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x0000000800505523 in __tls_get_addr () from /libexec/ld-elf.so.1
(gdb) bt
#0  0x0000000800505523 in __tls_get_addr () from /libexec/ld-elf.so.1
#1  0x00000008006b34c1 in free () from /lib/libc.so.7
#2  0x00000008006b4a8e in malloc () from /lib/libc.so.7
#3  0x00000008006a9600 in regfree () from /lib/libc.so.7
#4  0x00000008006a918e in regfree () from /lib/libc.so.7
#5  0x00000008006a6500 in __detect_path_locale () from /lib/libc.so.7
#6  0x0000000000401b6a in ?? ()
#7  0x0000000000401035 in ?? ()
#8  0x000000080052f000 in ?? ()

-- 
B.Walter <bernd_at_bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.