Date: Wed, 9 Dec 2009 11:20:51 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Kostik Belousov" <kostikbel@gmail.com> Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: nginx + passenger = segv in _rtld_error on restart on FreeBSD8.0? Message-ID: <3898B34F179B4BB7917631C532CDF95F@multiplay.co.uk> References: <6B44BF0945694D98BC060164D404B5A9@multiplay.co.uk> <20091209102122.GC43143@deviant.kiev.zoral.com.ua>
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----- Original Message -----
From: "Kostik Belousov" <kostikbel@gmail.com>
To: "Steven Hartland" <killing@multiplay.co.uk>
Cc: <freebsd-hackers@freebsd.org>; <freebsd-stable@freebsd.org>
Sent: Wednesday, December 09, 2009 10:21 AM
Subject: Re: nginx + passenger = segv in _rtld_error on restart on FreeBSD8.0?
This is the trace once world had been recompiled with:-
CFLAGS=-pipe
WITH_CTF=1
DEBUG_FLAGS=-g
#0 0x0000000800c95eec in thr_kill () at thr_kill.S:3
#1 0x0000000800b22e9e in _thr_send_sig (thread=0x800f06600, sig=6) at /usr/src/lib/libthr/thread/thr_kern.c:92
#2 0x0000000800b1f878 in _raise (sig=6) at /usr/src/lib/libthr/thread/thr_sig.c:187
#3 0x0000000800d74003 in abort () at /usr/src/lib/libc/stdlib/abort.c:65
#4 0x000000000043b8a7 in Client::threadMain (this=0x800f9cf40) at ext/nginx/HelperServer.cpp:516
#5 0x0000000000411302 in boost::_mfi::mf0<void, Client>::operator() (this=0x7fffffa45ea8, p=0x800f9cf40) at
mem_fn_template.hpp:49
#6 0x0000000000411651 in boost::_bi::list1<boost::_bi::value<Client*> >::operator()<boost::_mfi::mf0<void, Client>,
boost::_bi::list0> (this=0x7fffffa45eb8, f=@0x7fffffa45ea8, a=@0x7fffffa45d7f) at bind.hpp:232
#7 0x0000000000411696 in boost::_bi::bind_t<void, boost::_mfi::mf0<void, Client>, boost::_bi::list1<boost::_bi::value<Client*> >
>::operator() (this=0x7fffffa45ea8) at bind_template.hpp:20
#8 0x00000000004116bd in boost::detail::function::void_function_obj_invoker0<boost::_bi::bind_t<void, boost::_mfi::mf0<void,
Client>, boost::_bi::list1<boost::_bi::value<Client*> > >, void>::invoke (
function_obj_ptr=@0x7fffffa45ea8) at function_template.hpp:158
#9 0x000000000042e73a in boost::function0<void, std::allocator<void> >::operator() (this=0x7fffffa45ea0) at
function_template.hpp:825
#10 0x0000000000435760 in oxt::thread::thread_main (func=@0x7fffffa45ea0, data=@0x7fffffa45e90) at thread.hpp:107
#11 0x000000000041310e in boost::_bi::list2<boost::_bi::value<boost::function<void ()(), std::allocator<void> > >,
boost::_bi::value<boost::shared_ptr<oxt::thread::thread_data> > >::operator()<void (*)(boost::function<void ()(),
std::allocator<void> >, boost::shared_ptr<oxt::thread::thread_data>), boost::_bi::list0> (this=0x800f3ee80, f=@0x800f3ee78,
a=@0x7fffffa45f0f) at bind.hpp:289
#12 0x0000000000413196 in boost::_bi::bind_t<void, void (*)(boost::function<void ()(), std::allocator<void> >,
boost::shared_ptr<oxt::thread::thread_data>), boost::_bi::list2<boost::_bi::value<boost::function<void ()(), std::allocator<void>
> >, boost::_bi::value<boost::shared_ptr<oxt::thread::thread_data> > > >::operator() (this=0x800f3ee78) at bind_template.hpp:20
#13 0x00000000004131b9 in boost::thread::thread_data<boost::_bi::bind_t<void, void (*)(boost::function<void ()(),
std::allocator<void> >, boost::shared_ptr<oxt::thread::thread_data>), boost::_bi::list2<boost::_bi::value<boost::function<void
()(), std::allocator<void> > >, boost::_bi::value<boost::shared_ptr<oxt::thread::thread_data> > > > >::run (this=0x800f3ee00) at
thread.hpp:130
#14 0x0000000000443259 in thread_proxy (param=0x800f3ee00) at ext/boost/src/pthread/thread.cpp:127
#15 0x0000000800b1badd in thread_start (curthread=0x800f06600) at /usr/src/lib/libthr/thread/thr_create.c:288
#16 0x0000000000000000 in ?? ()
Cannot access memory at address 0x7fffffa46000
Current language: auto; currently asm
It seems that in the passenger client threads it calls closeStream which errors when
the socket close errors with ENOTCONN
virtual void closeStream() {
TRACE_POINT();
if (fd != -1) {
int ret = syscalls::close(fd);
fd = -1;
if (ret == -1) {
if (errno == EIO) {
throw SystemException("A write operation on the session stream failed",
errno);
} else {
throw SystemException("Cannot close the session stream",
errno);
}
}
}
}
This causes it to call abort on the the thread which then crashes the app with
the above stack trace, which seems really weird. Anyone got any ideas?
Regards
steve
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