Date: Mon, 13 Jul 2009 20:44:48 +1000 From: John Marshall <john.marshall@riverwillow.com.au> To: freebsd-current@freebsd.org Subject: Re: Process stuck in vmmaps on 8.0-BETA1 Message-ID: <20090713104448.GE982@rwpc12.mby.riverwillow.net.au> In-Reply-To: <20090711124206.GF55190@deviant.kiev.zoral.com.ua> References: <a31046fc0907082342g1343b138g2fc38fda890b582a@mail.gmail.com> <20090709073054.GB27373@rwpc12.mby.riverwillow.net.au> <20090709085242.GC27373@rwpc12.mby.riverwillow.net.au> <20090709142121.GS55190@deviant.kiev.zoral.com.ua> <20090710035849.GB31950@rwpc12.mby.riverwillow.net.au> <1247214510.2437.1693.camel@strangepork.london.mintel.ad> <20090710114234.GF32316@rwpc12.mby.riverwillow.net.au> <20090710132429.GA55190@deviant.kiev.zoral.com.ua> <20090711091050.GN32316@rwpc12.mby.riverwillow.net.au> <20090711124206.GF55190@deviant.kiev.zoral.com.ua>
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On Sat, 11 Jul 2009, 15:42 +0300, Kostik Belousov wrote:
> On Sat, Jul 11, 2009 at 07:10:50PM +1000, John Marshall wrote:
> > On Fri, 10 Jul 2009, 16:24 +0300, Kostik Belousov wrote:
> > >
> > > Thank you, I see what is going on. Please, try the following patch.
> >=20
> > Thank you Kostik,
> >=20
> > I applied your patch to vm_map.c and rebuilt the kernel. Now the
> > process crashes instead - but I think it is getting beyond the point
> > where it was hanging.
> >=20
> > I rebuilt ntpd on the patched kernel and it still produces this crash.
>=20
> This is obviously different issue. Besiddes, backtrace does not make
> much sense.
>=20
> You need to rebuild and install lib/libc, lib/libthr and
> libexec/rtld-elf with debugging symbols. Easiest way to do this is to
> enter into each listed src/ subdirectory and do
> make obj
> make clean
> make depend
> make all install DEBUG_FLAGS=3D-g
> and then start ntpd again and get the backtrace, might by "bt full" will
> be more informative.
Thank you for the help. This is what I saw after following your
instructions...
(gdb) bt full
#0 memset () at /usr/src/lib/libc/i386/string/memset.S:78
No locals.
#1 0x00006000 in ?? ()
No symbol table info available.
#2 0x28085c9b in map_object (fd=3D6,=20
path=3D0x280c0080 "/usr/local/lib/nss_winbind.so.1", sb=3D0xbfbfdbac)
at /usr/src/libexec/rtld-elf/map_object.c:196
obj =3D Variable "obj" is not available.
Current language: auto; currently asm
> BTW, do you use NIS ?
Yes, and I also have winbind. If I remove winbind from
/etc/nsswitch.conf then ntpd runs happily. I suspect that this might be
related to the GSSAPI authentication not working for sshd. I shall now
turn my attention to that problem.
Thank you for your help in resolving the initial vmmaps problem - and
for your patch to vm_map.c. I think we've progressed far enough beyond
that problem to close this thread.
Thank you again for your help.
--=20
John Marshall
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