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Hi,

the samsungmfp-data package installs a symlink /usr/share/ppd/samsung:

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iserv:~# ll /usr/share/ppd/samsung
lrwxrwxrwx 1 root root 22 17. Sep 16:49 /usr/share/ppd/samsung -> ../cups/model/samsung/


This symlink silently breaks CUPS - when it encounters this symlink, it stops reading in /usr/share/ppd:

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iserv:~# /usr/lib/cups/daemon/cups-driverd list 1 0 "requested-attributes=all" 2>&1 | grep -e Loading -e Skipping
DEBUG: [cups-driverd] Loading "/usr/share/cups/model"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/model/samsung"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/model/samsung/cms"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/drv"...
DEBUG: [cups-driverd] Loading "/usr/local/share/ppd"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/kyocera"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/lexmark"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/cups-included"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/ghostscript"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/ghostscript/model"...
ERROR: [cups-driverd] Skipping "/usr/share/ppd/samsung": loop detected!


All remaining folders in /usr/share/ppd are now ignored by CUPS. After I've removed the symlink manually, it will again read the remaining folders:

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iserv:~# rm -f /usr/share/ppd/samsung
iserv:~# /usr/lib/cups/daemon/cups-driverd list 1 0 "requested-attributes=all" 2>&1 | grep -e Loading -e Skipping
DEBUG: [cups-driverd] Loading "/usr/share/cups/model"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/model/samsung"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/model/samsung/cms"...
DEBUG: [cups-driverd] Loading "/usr/share/cups/drv"...
DEBUG: [cups-driverd] Loading "/usr/local/share/ppd"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/kyocera"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/lexmark"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/cups-included"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/ghostscript"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/ghostscript/model"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/brother"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Oki"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Sharp"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Epson"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Oce"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Oce/Oce-VarioPrint_2055PS"...
[...]
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Oce/Oce-PPC3113PS/1"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Toshiba"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Brother"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Lexmark"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Kyocera"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/Kyocera/en"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/HP"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/postscript/KONICA_MINOLTA"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/custom"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/foo2zjs"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/splix"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/splix/xerox"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/splix/dell"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/splix/samsung"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/hplip"...
DEBUG: [cups-driverd] Loading "/usr/share/ppd/hplip/HP"...