i tested the memory by exclusion and had the same problems!
i thought it might have something to do with my swap file not being used, raised the swappiness in /proc/sys/vm and increased and decreased the vfs_cache_pressure. didnt work.
now i think it might be the iptables..
here's the last part of /var/logs/warn after a series of chained crashes:
|---------------------------------------------------------------------------------------------------------
Aug 24 23:19:35 blue syslog-ng[4702]: Changing permissions on special file /dev/xconsole
Aug 24 23:19:35 blue syslog-ng[4702]: Changing permissions on special file /dev/tty10
Aug 24 23:19:35 blue ifup-route: Warning: Could not set up default route via interface
Aug 24 23:19:35 blue ifup-route: Command ip route replace to default via 192.168.1.1 returned:
Aug 24 23:19:35 blue ifup-route: . RTNETLINK answers: Network is unreachable
Aug 24 23:19:35 blue ifup-route: Configuration line: default 192.168.1.1 - -
Aug 24 23:19:35 blue ifup-route: This needs NOT to be AN ERROR if you set up multiple interfaces.
Aug 24 23:19:35 blue ifup-route: See man 5 routes how to avoid this warning.
Aug 24 23:19:35 blue ifup-route: Error while executing:
Aug 24 23:19:35 blue ifup-route: Command 'ip route replace to 192.168.2.1/24 via 192.168.1.1' returned:
Aug 24 23:19:35 blue ifup-route: RTNETLINK answers: Invalid argument
Aug 24 23:19:35 blue ifup-route: Configuration line: 192.168.2.1 192.168.1.1 255.255.255.0
Aug 24 23:19:35 blue mDNSResponder (Engineering Build) (Sep 9 2005 15:59:0

[5216]: starting
Aug 24 23:19:35 blue mDNSResponder: Unable to parse DNS server list. Unicast DNS-SD unavailable
Aug 24 23:19:35 blue ifup: No configuration found for sit0
Aug 24 23:19:38 blue nmbd[5509]: [2006/08/24 23:19:38, 0] nmbd/nmbd_logonnames.c:add_logon_names(163)
Aug 24 23:19:38 blue nmbd[5509]: add_domain_logon_names:
Aug 24 23:19:38 blue nmbd[5509]: Attempting to become logon server for workgroup FIRE on subnet 192.168.2.1
Aug 24 23:19:38 blue nmbd[5509]: [2006/08/24 23:19:38, 0] nmbd/nmbd_become_dmb.c:become_domain_master_browser_bca st(282)
Aug 24 23:19:38 blue nmbd[5509]: become_domain_master_browser_bcast:
Aug 24 23:19:38 blue nmbd[5509]: Attempting to become domain master browser on workgroup FIRE on subnet 192.168.2.1
Aug 24 23:19:38 blue nmbd[5509]: [2006/08/24 23:19:38, 0] nmbd/nmbd_become_dmb.c:become_domain_master_browser_bca st(295)
Aug 24 23:19:38 blue nmbd[5509]: become_domain_master_browser_bcast: querying subnet 192.168.2.1 for domain master browser on workgroup FIRE
Aug 24 23:19:39 blue smbd[5808]: [2006/08/24 23:19:39, 0] printing/print_cups.c:cups_cache_reload(85)
Aug 24 23:19:39 blue smbd[5808]: Unable to connect to CUPS server localhost - Connection refused
Aug 24 23:19:39 blue smbd[5808]: [2006/08/24 23:19:39, 0] printing/print_cups.c:cups_cache_reload(85)
Aug 24 23:19:39 blue smbd[5808]: Unable to connect to CUPS server localhost - Connection refused
Aug 24 23:19:39 blue SuSEfirewall2: Warning: ip6tables does not support state matching. Extended IPv6 support disabled.
Aug 24 23:19:39 blue kernel: ndiswrapper: module not supported by Novell, setting U taint flag.
Aug 24 23:19:39 blue kernel: ip6_tables: (C) 2000-2002 Netfilter core team
Aug 24 23:19:39 blue kernel: ip_tables: (C) 2000-2002 Netfilter core team
Aug 24 23:19:39 blue kernel: ip_conntrack version 2.1 (8189 buckets, 65512 max) - 248 bytes per conntrack
Aug 24 23:19:39 blue kernel: shpchp: shpc_init : shpc_cap_offset == 0
Aug 24 23:19:39 blue kernel: shpchp: shpc_init : shpc_cap_offset == 0
Aug 24 23:19:39 blue kernel: ACPI-0212: *** Warning: Device is not power manageable
Aug 24 23:19:39 blue kernel: usb 1-1: device descriptor read/all, error -71
Aug 24 23:19:39 blue kernel: hw_random: RNG not detected
Aug 24 23:19:39 blue kernel: ALSA sound/pci/ac97/ac97_codec.c:2027: AC'97 0 analog subsections not ready
Aug 24 23:19:39 blue kernel: NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
Aug 24 23:19:39 blue kernel: NFSD: recovery directory /var/lib/nfs/v4recovery doesn't exist
Aug 24 23:19:39 blue kernel: NFSD: starting 90-second grace period
Aug 24 23:19:39 blue xinetd[5941]: Service fam: attribute already set: type [file=/etc/xinetd.d/fam] [line=14]
Aug 24 23:19:39 blue xinetd[5941]: Service fam: attribute already set: type [file=/etc/xinetd.d/fam] [line=15]
Aug 24 23:19:40 blue [powersave]: ERROR (CPUFreq_Userspace:42) Could not set userspace governor, seems as if the cpufreq_userspace module is not loaded.
Aug 24 23:19:40 blue [powersave]: ERROR (read_line:43) Could not open file for reading: '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'
Aug 24 23:19:40 blue [powersave]: ERROR (read_line:43) Could not open file for reading: '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq'
Aug 24 23:19:40 blue [powersave]: ERROR (read_value:82) Could not read value in file /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq: error: No such file or directory!
Aug 24 23:19:40 blue [powersave]: ERROR (read_line:43) Could not open file for reading: '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq'
Aug 24 23:19:40 blue [powersave]: ERROR (read_value:82) Could not read value in file /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: error: No such file or directory!
Aug 24 23:19:40 blue [powersave]: WARNING (getMinMaxSpeeds:349) Speedstepping not supported! Was the correct cpufreq module loaded?
Aug 24 23:19:40 blue [powersave]: WARNING (initFreqsViaTesting:377) Could not read min and max speed
Aug 24 23:19:40 blue [powersave]: ERROR (PM_Interface:231) Cannot create cpufreq objects
Aug 24 23:19:40 blue xinetd[5941]: Service fam missing attribute user - DISABLING
Aug 24 23:19:40 blue xinetd[5941]: No such internal service: servers/stream - DISABLING
Aug 24 23:19:40 blue xinetd[5941]: No such internal service: services/stream - DISABLING
Aug 24 23:19:42 blue kernel: end_request: I/O error, dev fd0, sector 0
Aug 24 23:19:42 blue kernel: end_request: I/O error, dev fd0, sector 0
Aug 24 23:19:42 blue kernel: end_request: I/O error, dev fd0, sector 0
Aug 24 23:19:42 blue submountd: mount failure, No such device or address
Aug 24 23:19:42 blue kernel: end_request: I/O error, dev fd0, sector 0
Aug 24 23:19:42 blue kernel: subfs: unsuccessful attempt to mount media (256)
Aug 24 23:19:43 blue kernel: nvidia: module not supported by Novell, setting U taint flag.
Aug 24 23:19:43 blue nmbd[5509]: [2006/08/24 23:19:43, 0] nmbd/nmbd_logonnames.c:become_logon_server_success(124)
Aug 24 23:19:43 blue nmbd[5509]: become_logon_server_success: Samba is now a logon server for workgroup FIRE on subnet 192.168.2.1
Aug 24 23:19:43 blue kernel: NVRM: loading NVIDIA Linux x86 Kernel Module 1.0-8762 Mon May 15 13:06:38 PDT 2006
Aug 24 23:19:46 blue SuSEfirewall2: Warning: ip6tables does not support state matching. Extended IPv6 support disabled.
Aug 24 23:19:46 blue udevd[2330]: get_netlink_msg: no ACTION in payload found, skip event 'mount'
Aug 24 23:19:46 blue kdm: :0[5754]: pam_ldap: ldap_starttls_s: Can't contact LDAP server
Aug 24 23:19:47 blue SuSEfirewall2: Error: iptables-batch failed, re-running using iptables
Aug 24 23:19:48 blue nmbd[5509]: [2006/08/24 23:19:48, 0] nmbd/nmbd_become_dmb.c:become_domain_master_stage2(113)
Aug 24 23:19:48 blue nmbd[5509]: *****
Aug 24 23:19:48 blue nmbd[5509]:
Aug 24 23:19:48 blue nmbd[5509]: Samba server BLUE is now a domain master browser for workgroup FIRE on subnet 192.168.2.1
Aug 24 23:19:48 blue nmbd[5509]:
Aug 24 23:19:48 blue nmbd[5509]: *****
Aug 24 23:19:49 blue udevd[2330]: get_netlink_msg: no ACTION in payload found, skip event 'umount'
Aug 24 23:20:00 blue nmbd[5509]: [2006/08/24 23:20:00, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2(396)
Aug 24 23:20:00 blue nmbd[5509]: *****
Aug 24 23:20:00 blue nmbd[5509]:
Aug 24 23:20:00 blue nmbd[5509]: Samba name server BLUE is now a local master browser for workgroup FIRE on subnet 192.168.2.1
Aug 24 23:20:00 blue nmbd[5509]:
Aug 24 23:20:00 blue nmbd[5509]: *****
------------------------------------------------------------------------------|
i had a series (like 5 times after each other) of crashes one after the other, every time having to hard boot, and everytime, a little after azureus started up (it is in the boot autostart directory), it froze. the last time, i closed azureus the moment it started, and stopped the firewall (although, i need it for masquerading) and restarted azureus, now it hasn't crashed for a while. Allthough that says nothing, im allready anticipating the next crash