Weird user/group in /usr/lib/*, pacman cannot "mmap"

Question

Hello,
i'm getting some errors i really dont understand. I was trying out flash 10 (beta), which worked ok. The next day i tried to log in, but kde 3 didn't started, as stated in ~/.xinitrc. Besides that, loggin into console as my standard user and doing a "startx" worked. Next i tried to update arch, which gave me the following errors:
(1/1) checking for file conflicts [################################] 100%
(1/1) upgrading pacman [################################] 100%
/sbin/ldconfig: Cannot mmap file /usr/lib/libtheora.so.0.3.1.
/sbin/ldconfig: Cannot mmap file /usr/lib/libncursesw.so.
/sbin/ldconfig: Cannot mmap file /usr/lib/libcroco-0.6.so.3.
/sbin/ldconfig: Cannot mmap file /usr/lib/libmad.so.0.
/sbin/ldconfig: Cannot mmap file /usr/lib/libXaw.so.7.
/sbin/ldconfig: Cannot mmap file /usr/lib/libdatrie.so.
/sbin/ldconfig: Cannot mmap file /usr/lib/libXfontcache.so.1.0.0.
/sbin/ldconfig: Cannot mmap file /usr/lib/libusb.so.
I looked up these files and found some weird permissions, users and groups for some files in /usr/lib. (I dont think "libtiff.so.3" should be ~2GB )
-rw-r--r-- 1 root root 349202 Oct 5 2007 libtheora.a
lrwxrwxrwx 1 root root 18 Oct 5 2007 libtheora.so -> libtheora.so.0.3.1
lrwxrwxrwx 1 root root 18 Oct 5 2007 libtheora.so.0 -> libtheora.so.0.3.1
?rws--S--- 11231 4016113015 3164199117 320946896 Jul 18 1953 libtheora.so.0.3.1
lrwxrwxrwx 1 root root 27 Jun 11 15:23 libthread_db.so -> ../../lib/libthread_db.so.1
lrwxrwxrwx 1 root root 21 Oct 26 2007 libtidy-0.99.so.0 -> libtidy-0.99.so.0.0.0
-rwxr-xr-x 1 root root 348272 Oct 26 2007 libtidy-0.99.so.0.0.0
-rw-r--r-- 1 root root 363578 Oct 26 2007 libtidy.a
lrwxrwxrwx 1 root root 21 Oct 26 2007 libtidy.so -> libtidy-0.99.so.0.0.0
?r-x-w--w- 45328 4213116216 334827512 93200708 Jun 4 1973 libtiff.a
lrwxrwxrwx 1 root root 16 Dec 9 2007 libtiff.so -> libtiff.so.3.8.2
?--x--x-wt 61310 1845559621 1040362765 2089586813 Dec 23 2037 libtiff.so.3
?rwS--x--x 23976 563704161 3267170473 8822849 Sep 13 1976 libtiff.so.3.8.2
-rw-r--r-- 1 root root 5938 Aug 16 2006 libtiffxx.a
lrwxrwxrwx 1 root root 18 Dec 9 2007 libtiffxx.so -> libtiffxx.so.3.8.2
lrwxrwxrwx 1 root root 18 Dec 9 2007 libtiffxx.so.3 -> libtiffxx.so.3.8.2
-rwxr-xr-x 1 root root 10372 Aug 16 2006 libtiffxx.so.3.8.2
So far this happend only to files in /usr/lib. Well, it could be, that the beta plugin from adobe messed these things up. But... how to clean this up? Would it be the best to remove all packages that belong to these files, then manually remove these files, and reinstall everything? Or is this some known problem?
Besides that: I am using ext3 and i had a 4,3 GB file on my system that day, i tried out the flash beta, if that means anything.

Answer 1

It is very strange. Run fsck on this filesystem and then execute
find / -nouser -exec chown root {} \;
find / -nogroup -exec chgrp root {} \;
I think this should fix your problem.