Arch Linux User Repository

I've seen two more types of rastertospl crashes when manually inspecting why I can't disable toner save:
- "double free or corruption (!prev)"
- "corrupted double-linked list"

These are all extra glibc memory operation checks which can be disabled by MALLOC_CHECK_=0 env variable but disabling them doesn't help in any way - Cups apparently sends the filter output to the printer despite filter being abort()'d by this check. It must be a memory bug in rastertospl and when it occurs, an invalid "black" SPL-C output is sent to the printer, printing almost complete black page (with a few white strips).

A crash happens for me only when "Edge Control=On" AND "Toner Save=Off". When I turn the Edge control "Off", I can enable/disable the toner save and it won't crash anymore. Btw "edge control" probably doesn't refer to the page edges; it probably controls how edges of black elements (characters) are rendered and there appears to be a minimal difference so keeping it Off is not a big deal.

Maybe this report will help someone else.

@radar_wiekszy: Interesting! It seems that rastertospl has indeed hardcoded paths:

$ strings /usr/lib/cups/filter/rastertospl | grep /opt
/opt/smfp-common/printer/lib
/opt/smfp-common/printer/lib

What does the samsung provided package install in that folder?

@k3a

My scx-3405w also printed black pages, and rastertospl also crashed with similar error message. Installation from Samsung-provided packages solved the problem, but then I moved rastertospl around a bit, and apparently it crashes when placed in /usr/lib/cups/filter, but if it's a symlink pointing to /opt/smfp-common/printer/bin/rastertospl - no crashes. Same file. Hardcoded paths, maybe?

rastertospl was crashing on a free function (free(): invalid next size (fast): 0x0000000002286d80) + ML-2160 printer printed fully black sheets.

Surprisingly installing the driver from the vendor-provided tar (not a newer version), without making an Arch package resulted in a working installation. Strange.

@christoph.gysin I found out it installs well with yaourt, but fails with the help of packer.

@Moo-Crumpus: I can't reproduce this. Also, I'm not sure what the error message means. Could you reproduce this with non-translated error messages? Try running it with LC_ALL=C pacman ...

Does not work.

packer -S samsung-unified-driver
...
==> Verlasse fakeroot Umgebung.
==> Beendete Erstellung: samsung-unified-driver 1.00.37-3 (Sa 4. Mär 09:07:20 CET 2017)
Lade Pakete...
Warnung: samsung-unified-driver-common-1.00.37-3 ist aktuell -- Reinstalliere
Warnung: samsung-unified-driver-printer-1.00.37-3 ist aktuell -- Reinstalliere
Warnung: samsung-unified-driver-scanner-1.00.37-3 ist aktuell -- Reinstalliere
Warnung: samsung-unified-driver-1.00.37-3 ist aktuell -- Reinstalliere
Fehler: 'samsung-unified-driver-common-1.00.37-3-x86_64.pkg.tar.xz': Doppelte Ziele
Fehler: 'samsung-unified-driver-printer-1.00.37-3-x86_64.pkg.tar.xz': Doppelte Ziele
Fehler: 'samsung-unified-driver-scanner-1.00.37-3-x86_64.pkg.tar.xz': Doppelte Ziele

@mmozeiko: Done, sorry about that. pkgrel update got lost during git rebase.

Can you please increase pkgrel number? So we automatically get newer package version after your changes to PKGBUILD.

Thanks, the OEM_FILE should now get installed as well.