__tls_get_addr problem with recent current

[Kostik Belousov]

On Thu, Aug 14, 2008 at 10:29:49PM +0200, Bernd Walter wrote:
> 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 ?? ()

I do not see a problem with today kernel and world (on amd64).
Does the problem persist even with both new kernel and world ?
If yes, you probably would need to rebuild rtld and libc with debug
symbols and get the backtrace with full debug information.
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