[3864] in arla-drinkers
Re: Arla 0.42-RC2
daemon@ATHENA.MIT.EDU (=?iso-8859-1?q?Niels_M=F6ller?=)
Wed Apr 5 11:08:19 2006
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To: Tomas Olsson <tol@stacken.kth.se>
Subject: Re: Arla 0.42-RC2
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From: nisse@lysator.liu.se (=?iso-8859-1?q?Niels_M=F6ller?=)
Date: 05 Apr 2006 17:06:58 +0200
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nisse@lysator.liu.se (Niels M=F6ller) writes:
> It's puzzling. I also tried strace -f arlad -n, which says:
> =
> 5357 open("/lib/libgcc_s.so.1", O_RDONLY) =3D -1 ENOENT (No such file =
or directory)
> 5357 open("/usr/lib/i686/cmov/libgcc_s.so.1", O_RDONLY) =3D -1 ENOENT =
(No such file or directory)
> 5357 open("/usr/lib/i686/libgcc_s.so.1", O_RDONLY) =3D -1 ENOENT (No s=
uch file or directory)
> 5357 open("/usr/lib/libgcc_s.so.1", O_RDONLY) =3D -1 ENOENT (No such f=
ile or directory)
> 5357 write(2, "libgcc_s.so.1 must be installed "..., 59) =3D 59
> 5357 exit_group(127) =3D ?
> =
> The file /lib/libgcc_s.so.1 exists and is readable, so I really don't
> understand why open returns ENOENT.
ceder helped me spot the "obvious" problem. Earlier in the strace
output:
5332 chroot("/usr/arla/cache") =3D 0
So here we have the problem: pthread_cancel wants to use dlopen to
load libgcc_s.so.1. But by the time it calls dlopen, this file is
hidden by chroot.
I'm tempted to say it's a bug in glibc to depend on dlopen like this,
and I wouldn't be surprised if this behaviour is not POSIX-compliant.
Is there any way to force the loading of libgcc earlier? Or how to
work around this?
Regards,
/Niels
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