bind fails with sig11 on start / pthread failure on ARM?
Kostik Belousov
kostikbel at gmail.com
Thu Feb 18 13:10:18 UTC 2010
On Thu, Feb 18, 2010 at 01:49:07PM +0100, Bernd Walter wrote:
> On Tue, Feb 16, 2010 at 07:39:51PM +0100, Bernd Walter wrote:
> > On Mon, Feb 15, 2010 at 10:39:07PM +0100, Bernd Walter wrote:
> > [55]Please.tell.me.who.am.I# gdb /usr/sbin/named named.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 "arm-marcel-freebsd"...(no debugging symbols found)...
> > Core was generated by `named'.
> > Program terminated with signal 5, Trace/breakpoint trap.
> > Reading symbols from /lib/libcrypto.so.6...(no debugging symbols found)...done.
> > Loaded symbols for /lib/libcrypto.so.6
> > Reading symbols from /lib/libthr.so.3...(no debugging symbols found)...done.
> > Loaded symbols for /lib/libthr.so.3
> > 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 0x203571b0 in _thread_bp_create () from /lib/libthr.so.3
> > [New Thread 20804280 (LWP 100062)]
> > [New Thread 20804140 (LWP 100052)]
> > (gdb) bt
> > #0 0x203571b0 in _thread_bp_create () from /lib/libthr.so.3
> > #1 0x203572b8 in _thread_bp_death () from /lib/libthr.so.3
> > #2 0x20349da4 in pthread_create () from /lib/libthr.so.3
> > #3 0x00164cb8 in ?? ()
> > (gdb)
> >
> > Do we have a general threading problem on ARM?
>
> I see two different type a crashes.
> Both have in common that one or more threads are in _umtx_op.
> Unfortunately I don't know enough details about those things to isolate
> any more.
>
> the one from above:
> #0 0x203571b0 in _thread_bp_create () from /lib/libthr.so.3
> [New Thread 20804280 (LWP 100062)]
> [New Thread 20804140 (LWP 100052)]
> (gdb) bt
> #0 0x203571b0 in _thread_bp_create () from /lib/libthr.so.3
> #1 0x203572b8 in _thread_bp_death () from /lib/libthr.so.3
> #2 0x20349da4 in pthread_create () from /lib/libthr.so.3
> #3 0x00164cb8 in ?? ()
> (gdb) thread 1
> [Switching to thread 1 (Thread 20804280 (LWP 100062))]#0 0x203ab6f0 in _umtx_op () from /lib/libc.so.7
> (gdb) bt
> #0 0x203ab6f0 in _umtx_op () from /lib/libc.so.7
> #1 0x2035769c in pthread_cleanup_push () from /lib/libthr.so.3
> #2 0x20357cc0 in pthread_cleanup_push () from /lib/libthr.so.3
> #3 0x20349540 in pthread_getprio () from /lib/libthr.so.3
> #4 0x203499a0 in pthread_create () from /lib/libthr.so.3
> #5 0x00164cb8 in ?? ()
>
> And another, which is what I get most of the time:
> (gdb) thread 1
> [Switching to thread 1 (Thread 20804500 (LWP 100100))]#0 0x20435f28 in kevent () from /lib/libc.so.7
> (gdb) bt
> #0 0x20435f28 in kevent () from /lib/libc.so.7
> #1 0x0014f2dc in ?? ()
> (gdb) thread 2
> [Switching to thread 2 (Thread 208043c0 (LWP 100099))]#0 0x203ab6f4 in _umtx_op () from /lib/libc.so.7
> (gdb) bt
> #0 0x203ab6f4 in _umtx_op () from /lib/libc.so.7
> #1 0x2035769c in pthread_cleanup_push () from /lib/libthr.so.3
> #2 0x20357a78 in pthread_cleanup_push () from /lib/libthr.so.3
> #3 0x20355580 in pthread_cond_signal () from /lib/libthr.so.3
> #4 0x00000000 in ?? ()
> (gdb) thread 3
> [Switching to thread 3 (Thread 20804280 (LWP 100098))]#0 0x203ab6f4 in _umtx_op () from /lib/libc.so.7
> (gdb) bt
> #0 0x203ab6f4 in _umtx_op () from /lib/libc.so.7
> #1 0x2035769c in pthread_cleanup_push () from /lib/libthr.so.3
> #2 0x20357a78 in pthread_cleanup_push () from /lib/libthr.so.3
> #3 0x20355580 in pthread_cond_signal () from /lib/libthr.so.3
> #4 0x2092d008 in ?? ()
> (gdb) thread 4
> [Switching to thread 4 (Thread 20804140 (LWP 100043))]#0 0x0015755c in ?? ()
> (gdb) bt
> #0 0x0015755c in ?? ()
Compile and install ld-elf.so, libc and libthr with debugging symbols:
(cd libexec/rtld-elf && make all install DEBUG_FLAGS=-g)
(cd lib/libc && make all install DEBUG_FLAGS=-g)
(cd lib/libthr && make all install DEBUG_FLAGS=-g)
Then repeat the crash and try to see where in code does it happen.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-current/attachments/20100218/5dbc28e9/attachment.pgp
More information about the freebsd-current
mailing list