From owner-freebsd-current@FreeBSD.ORG Sat Nov 13 11:59:00 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 1233) id 2479C106566B; Sat, 13 Nov 2010 11:59:00 +0000 (UTC) Date: Sat, 13 Nov 2010 11:59:00 +0000 From: Alexander Best To: Kostik Belousov Message-ID: <20101113115900.GA14975@freebsd.org> References: <20101112223715.GA1356@freebsd.org> <20101113112447.GF2392@deviant.kiev.zoral.com.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101113112447.GF2392@deviant.kiev.zoral.com.ua> Cc: freebsd-current@freebsd.org Subject: Re: www/chromium crashing whole system X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Nov 2010 11:59:00 -0000 On Sat Nov 13 10, Kostik Belousov wrote: > On Fri, Nov 12, 2010 at 10:37:15PM +0000, Alexander Best wrote: > > hi there, > > > > i'm having an issue with www/chromium. sometimes it will completely lock up my > > system without producing a core dump. i'm running HEAD (r215102; amd64). > Core dump of the kernel or the process ? a kernel core dump never gets produced. and this is the first time a process dump made it to disk. > > You probably should follow the usual procedure for the deadlock > debugging, see dev handbook. i have all those options in my kernel conf. still the computer just locks up without any chance to enter the debugger. nothing works any longer. > > > > > this time however chrome.core made it to disk somehow: > > > ... > > > Loaded symbols for /libexec/ld-elf.so.1 > > #0 0x00000008026d76a2 in symlook_default (name=0x806797dbc "__sys_sigreturn", hash=92647454, refobj=0x802722c00, defobj_out=0x7fffffbfe160, ventry=0x802717790, flags=1) at /usr/src/libexec/rtld-elf/rtld.c:2675 > Please show the output of "info locals" in the frame 0. (gdb) frame 0 #0 0x00000008026d76a2 in symlook_default (name=0x806797dbc "__sys_sigreturn", hash=92647454, refobj=0x802722c00, defobj_out=0x7fffffbfe160, ventry=0x802717790, flags=1) at /usr/src/libexec/rtld-elf/rtld.c:2675 2675 symp = symlook_list(name, hash, &list_main, &obj, ventry, flags, (gdb) info locals donelist = {objs = 0x7fffffbfde90, num_alloc = 64, num_used = 0} def = (const Elf_Sym *) 0x0 symp = (const Elf_Sym *) 0x7fffffbfe0e0 obj = Variable "obj" is not available. cheers. alex > > > 2675 symp = symlook_list(name, hash, &list_main, &obj, ventry, flags, > > [New Thread 2ee6b40 (LWP 100245)] > > [New Thread 2ee6000 (LWP 100212)] > > (gdb) bt > > #0 0x00000008026d76a2 in symlook_default (name=0x806797dbc "__sys_sigreturn", hash=92647454, refobj=0x802722c00, defobj_out=0x7fffffbfe160, ventry=0x802717790, flags=1) at /usr/src/libexec/rtld-elf/rtld.c:2675 > > #1 0x00000008026d815c in find_symdef (symnum=217, refobj=0x802722c00, defobj_out=0x7fffffbfe1a8, flags=1, cache=0x0) at /usr/src/libexec/rtld-elf/rtld.c:1205 > > #2 0x00000008026d8233 in _rtld_bind (obj=0x802722c00, reloff=Variable "reloff" is not available. > > ) at /usr/src/libexec/rtld-elf/rtld.c:557 > > #3 0x00000008026d487d in _rtld_bind_start () at /usr/src/libexec/rtld-elf/amd64/rtld_start.S:99 > > #4 0xffffffff91969eb2 in ?? () > > #5 0x0000000000000000 in ?? () > > #6 0x0000000000000000 in ?? () > > #7 0xfffffffffffffbd0 in ?? () > > #8 0x00007fffffbfe260 in ?? () > > #9 0x00007fffffbfe260 in ?? () > > #10 0x0000000000000000 in ?? () > > #11 0x0000000002ee6000 in ?? () > > #12 0x0000000002ee6cb8 in ?? () > > #13 0x0000000000000206 in ?? () > > #14 0x0000000000000000 in ?? () > > #15 0x0000000802722c00 in ?? () > > #16 0x0000000000000024 in ?? () > > #17 0x000000080679fc26 in handle_signal (actp=Variable "actp" is not available. > > ) at /usr/src/lib/libthr/thread/thr_sig.c:254 > > #18 0x000000080679fd5f in thr_sighandler (sig=20, info=0x7fffffbfea00, _ucp=0x7fffffbfe690) at /usr/src/lib/libthr/thread/thr_sig.c:181 > > #19 > > #20 0x00000008069cad6c in read () at read.S:3 > > #21 0x000000080679dc70 in __read (fd=15, buf=0x7fffffbfef84, nbytes=4) at /usr/src/lib/libthr/thread/thr_syscalls.c:460 > > #22 0x000000000043871f in (anonymous namespace)::ShutdownDetector::ThreadMain () > > #23 0x0000000000984caa in ThreadFunc () > > #24 0x000000080679b81e in thread_start (curthread=0x2ee6b40) at /usr/src/lib/libthr/thread/thr_create.c:273 > > #25 0x0000000000000000 in ?? () > > Cannot access memory at address 0x7fffffbff000 > > > > cheers. > > alex > > > > -- > > a13x > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- a13x