Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 13 Aug 2001 15:34:30 +0800
From:      Michael Robinson <robinson@netrinsics.com>
To:        Daniel Eischen <eischen@vigrid.com>
Cc:        hackers@freebsd.org, current@freebsd.org
Subject:   Re: _sigprocmask in malloc.c causes full file table?
Message-ID:  <20010813153430.A283@elephant.netrinsics.com>
In-Reply-To: <Pine.SUN.3.91.1010812101250.25909A-100000@pcnet1.pcnet.com>; from eischen@vigrid.com on Sun, Aug 12, 2001 at 10:29:53AM -0400
References:  <20010812214608.A2701@elephant.netrinsics.com> <Pine.SUN.3.91.1010812101250.25909A-100000@pcnet1.pcnet.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, Aug 12, 2001 at 10:29:53AM -0400, Daniel Eischen wrote:
> sigprocmask() behaves the same as pthread_sigmask().  pthread_sigmask()
> needs to obtain the current thread.  In obtaining the current thread,
> the threads library must be initialized.  In initializing the threads
> library malloc() is called.  Wash, rinse, repeat.

We have a winner.  This is the top of the (very long) call stack from the
mozilla core file (which I admittedly should have examined earlier):

#11913 0x2863ebda in _thread_init () from /usr/lib/libc_r.so.5
#11914 0x2863e7a3 in _get_curthread () from /usr/lib/libc_r.so.5
#11915 0x28633539 in pthread_sigmask () from /usr/lib/libc_r.so.5
#11916 0x2863f250 in sigprocmask () from /usr/lib/libc_r.so.5
#11917 0x286c9db5 in malloc () from /usr/lib/libc.so.5
#11918 0x2863a980 in _pq_alloc () from /usr/lib/libc_r.so.5
#11919 0x2863ebda in _thread_init () from /usr/lib/libc_r.so.5
#11920 0x2863e7a3 in _get_curthread () from /usr/lib/libc_r.so.5
#11921 0x28633539 in pthread_sigmask () from /usr/lib/libc_r.so.5
#11922 0x2863f250 in sigprocmask () from /usr/lib/libc_r.so.5
#11923 0x286c9db5 in malloc () from /usr/lib/libc.so.5
#11924 0x2863a980 in _pq_alloc () from /usr/lib/libc_r.so.5
#11925 0x2863ebda in _thread_init () from /usr/lib/libc_r.so.5
#11926 0x2863c063 in pthread_mutex_lock () from /usr/lib/libc_r.so.5
#11927 0x2861556d in __register_frame_info () from /usr/lib/libstdc++.so.3
#11928 0x28662fa2 in _init () from /usr/lib/libc.so.5
#11929 0x2866062d in _init () from /usr/lib/libc.so.5
#11930 0x2806de10 in _rtld () from /usr/libexec/ld-elf.so.1


So, in answer to the question, "am I doing something boneheaded, or is this
an undocumented subtle interaction," I'll give partial credit to both.

Thank you very much for your assistance.

	-Michael Robinson


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010813153430.A283>