Hello list, In short: Could 32-bit ulogd run on 64-bit kernel without failing? Longer story: One of our machines runs on 32bit linux because 32bit code is smaller. Also the kernel was a 32-bit one. Over the time during operation, the larger amount of data processed increased RAM requirements. All processes stay below 4G but the system itself could use more than 4G RAM, which is not possible with the 32-bit kernel used. So the kernel was upgraded to 64 bit (kernel 3.3.2) WITHOUT upgrading the system to 64 bit. Afterwards everything worked fine except that the ulogd (1.24-3ubuntu1) messages written to syslogemu were complete garbage, e.g. Jan 1 00:00:00 localhost 0 0 20 0 1 < IN= [unprintable bytes] R OUT= [unprintable bytes] MAC=50:54:2d:49:4e:46:4f:00:00:00:00:00:00:00:00:00:00:00:00:0e:00:50:56:9c:3c:a6:00:50:56:9c:00:a2:08:00:34:35:37:36:36:31:32:20:34:32:38:37:38:35:39:38:34:30:20:34:32:38:37:38:35:38:31:30:34:20:34:31:35:31:32 SRC=32.48.32.48 DST=32.49.55.32 LEN=13112 TOS=10 PREC=0x20 TTL=57 ID=12340 MF FRAG:5940 PROTO=53 All other iptables tools seem to work correctly, e.g. iptables-save shows correct interface names, rules and also the ruleset works as expected. From that I would expect, that the error should reside in the netlink handover of captured packets to ulogd or the ulogd handling of those messages. Is it possible to run a 32-bit ulogd on 64-bit system or is there some reason, this cannot work? If it won't work, it would be nice if ulogd fails to start with some understandable error message. Kind Regards, Roman DI Roman Fiedler Engineer Safety & Security Department Assistive Healthcare Information Technology AIT Austrian Institute of Technology GmbH Reininghausstrae 13/1 | 8020 Graz | Austria T +43(0) 50550 2957 | M +43(0) 664 8561599 | F +43(0) 50550 2950 roman.fiedler@xxxxxxxxx | http://www.ait.ac.at/ FN: 115980 i HG Wien | UID: ATU14703506 This email and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient, please notify the sender by return e-mail or by telephone and delete this message from your system and any printout thereof. Any unauthorized use, reproduction, or dissemination of this message is strictly prohibited. Please note that e-mails are susceptible to change. AIT Austrian Institute of Technology GmbH shall not be liable for the improper or incomplete transmission of the information contained in this communication, nor shall it be liable for any delay in its receipt. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
