I attached syslog and kern.log when this occurs.

System information: ibook G4, Ubuntu Feisty 7.04 PPC with latest updates

If some more information is needed, please let me know.


May 14 23:28:16 localhost gnome-power-manager: (dennis) Rechner wird in Bereitschaft versetzt da Deckel wurde im Netzbetrieb geschlossen
May 14 23:28:16 localhost NetworkManager: <information>^IGoing to sleep. 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): ted AP. 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP]) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): Wireless event: cmd=0x8b06 len=8 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP]) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): Wireless event: cmd=0x8b19 len=8 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): Received 253 bytes of scan results (1 BSSes) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): Scan results: 1 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): Selecting BSS from priority group 0 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710): 0: 00:14:bf:a4:ef:e2 ssid='dlan' wpa_ie_len=26 rsn_ie_len=0 caps=0x11 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(6710):    selected based on WPA IE 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Already associated with the selected AP. 
May 14 23:28:16 localhost dhclient: receive_packet failed on eth1: Network is down
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP]) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Wireless event: cmd=0x8b06 len=8 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP]) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Wireless event: cmd=0x8b19 len=8 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Received 253 bytes of scan results (1 BSSes) 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Scan results: 1 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Selecting BSS from priority group 0 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): 0: 00:14:bf:a4:ef:e2 ssid='dlan' wpa_ie_len=26 rsn_ie_len=0 caps=0x11 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1):    selected based on WPA IE 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): Already associated with the selected AP. 
May 14 23:28:16 localhost NetworkManager: <information>^Iwpa_supplicant(-1): CTRL-EVENT-TERMINATING - signal 15 received 
May 14 23:28:16 localhost dhclient: There is already a pid file /var/run/dhclient.eth1.pid with pid 6718
May 14 23:28:16 localhost dhclient: killed old client process, removed PID file
May 14 23:28:16 localhost avahi-daemon[4126]: Interface eth1.IPv4 no longer relevant for mDNS.
May 14 23:28:16 localhost avahi-daemon[4126]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.52.101.
May 14 23:28:16 localhost avahi-daemon[4126]: Withdrawing address record for fe80::20a:95ff:fef1:fbd6 on eth1.
May 14 23:28:16 localhost avahi-daemon[4126]: Withdrawing address record for 192.168.52.101 on eth1.
May 14 23:28:17 localhost dhclient: DHCPRELEASE on eth1 to 192.168.52.1 port 67
May 14 23:28:17 localhost dhclient: send_packet: Network is unreachable
May 14 23:28:17 localhost dhclient: send_packet: please consult README file regarding broadcast address.
May 14 23:28:18 localhost kernel: [ 8046.520658]  usbdev4.1_ep81: PM: suspend 0->2, parent 4-0:1.0 already 2
May 14 23:28:18 localhost kernel: [ 8046.520682] hub 4-0:1.0: PM: suspend 2->2, parent usb4 already 2
May 14 23:28:18 localhost kernel: [ 8046.520692]  usbdev4.1_ep00: PM: suspend 0->2, parent usb4 already 2
May 14 23:28:18 localhost kernel: [ 8046.520703]  usbdev3.1_ep81: PM: suspend 0->2, parent 3-0:1.0 already 2
May 14 23:28:18 localhost kernel: [ 8046.520713] hub 3-0:1.0: PM: suspend 2->2, parent usb3 already 2
May 14 23:28:18 localhost kernel: [ 8046.520723]  usbdev3.1_ep00: PM: suspend 0->2, parent usb3 already 2
May 14 23:28:18 localhost kernel: [ 8046.520750]  usbdev1.1_ep81: PM: suspend 0->2, parent 1-0:1.0 already 2
May 14 23:28:18 localhost kernel: [ 8046.520760] hub 1-0:1.0: PM: suspend 2->2, parent usb1 already 2
May 14 23:28:18 localhost kernel: [ 8046.520769]  usbdev1.1_ep00: PM: suspend 0->2, parent usb1 already 2
May 14 23:28:19 localhost kernel: [ 8047.756334] eth0: suspending, WakeOnLan disabled
May 14 23:28:19 localhost kernel: [ 8047.784887] ohci1394 does not fully support suspend and resume yet
May 14 23:28:19 localhost kernel: [ 8047.784909] ieee1394: hpsb_bus_reset called while bus reset already in progress
May 14 23:28:19 localhost kernel: [ 8047.868679] radeonfb (0000:00:10.0): suspending for event: 2...
May 14 23:28:23 localhost kernel: [ 8047.868974] uninorth-agp: disabling AGP on device 0000:00:10.0
May 14 23:28:23 localhost kernel: [ 8047.868994] uninorth-agp: disabling AGP on bridge 0000:00:0b.0
May 14 23:28:23 localhost kernel: [ 8048.362742] radeonfb (0000:00:10.0): resuming from state: 2...
May 14 23:28:23 localhost kernel: [ 8049.035467] agpgart: Putting AGP V2 device at 0000:00:0b.0 into 1x mode
May 14 23:28:23 localhost kernel: [ 8049.035488] agpgart: Putting AGP V2 device at 0000:00:10.0 into 1x mode
May 14 23:28:23 localhost kernel: [ 8049.284667] PCI: Enabling device 0001:10:12.0 (0000 -> 0002)
May 14 23:28:23 localhost kernel: [ 8049.284695] PM: Writing back config space on device 0001:10:12.0 at offset f (was 100, writing 134)
May 14 23:28:23 localhost kernel: [ 8049.284721] PM: Writing back config space on device 0001:10:12.0 at offset 4 (was 0, writing 80084000)
May 14 23:28:23 localhost kernel: [ 8049.284734] PM: Writing back config space on device 0001:10:12.0 at offset 3 (was 0, writing 1000)
May 14 23:28:23 localhost kernel: [ 8049.284749] PM: Writing back config space on device 0001:10:12.0 at offset 1 (was 100002, writing 100006)
May 14 23:28:23 localhost kernel: [ 8049.304651] PCI: Enabling device 0001:10:1b.0 (0000 -> 0002)
May 14 23:28:23 localhost kernel: [ 8049.320651] PCI: Enabling device 0001:10:1b.1 (0000 -> 0002)
May 14 23:28:23 localhost kernel: [ 8049.336653] PCI: Enabling device 0001:10:1b.2 (0000 -> 0002)
May 14 23:28:23 localhost kernel: [ 8049.336692] PM: Writing back config space on device 0001:10:1b.2 at offset 1 (was 2100006, writing 2100016)
May 14 23:28:23 localhost kernel: [ 8050.423485] ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[40]  MMIO=[f5000000-f50007ff]  Max Packet=[2048]  IR/IT contexts=[8/8]
May 14 23:28:23 localhost kernel: [ 8050.427883] eth0: resuming
May 14 23:28:23 localhost kernel: [ 8050.492997] PHY ID: 4061e4, addr: 0
May 14 23:28:23 localhost kernel: [ 8051.516415] hda: Enabling Ultra DMA 5
May 14 23:28:23 localhost kernel: [ 8051.520629] hdc: Enabling MultiWord DMA 2
May 14 23:28:23 localhost kernel: [ 8051.521932]  usbdev3.1_ep00: PM: resume from 0, parent usb3 still 2
May 14 23:28:23 localhost kernel: [ 8051.522218]  usbdev3.1_ep81: PM: resume from 0, parent 3-0:1.0 still 2
May 14 23:28:23 localhost kernel: [ 8051.800306] Machine check in kernel mode.
May 14 23:28:23 localhost kernel: [ 8051.800327] Caused by (from SRR1=149030): Transfer error ack signal
May 14 23:28:23 localhost kernel: [ 8051.801671] Oops: Machine check, sig: 7 [#1]
May 14 23:28:23 localhost kernel: [ 8051.801687] 
May 14 23:28:23 localhost kernel: [ 8051.801691] Modules linked in: michael_mic arc4 ecb blkcipher ieee80211_crypt_tkip af_packet ipv6 binfmt_misc rfcomm l2cap bluetooth uinput ppdev lp parport radeon drm cpufreq_stats cpufreq_ondemand cpufreq_conservative cpufreq_userspace cpufreq_powersave therm_adt746x sbp2 scsi_mod apm_emu snd_powermac fuse snd_aoa_i2sbus snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_aoa_soundbus pmac_zilog serial_core bcm43xx ieee80211softmac ieee80211 ieee80211_crypt uninorth_agp agpgart evdev tsdev ext3 jbd mbcache usbhid hid ide_cd cdrom ide_disk sungem sungem_phy ohci1394 ieee1394 ehci_hcd ohci_hcd usbcore capability commoncap
May 14 23:28:23 localhost kernel: [ 8051.801850] NIP: C0016644 LR: EA456984 CTR: C001663C
May 14 23:28:23 localhost kernel: [ 8051.801861] REGS: e551bc60 TRAP: 0200   Not tainted  (2.6.20-15-powerpc)
May 14 23:28:23 localhost kernel: [ 8051.801869] MSR: 00149030 <EE,ME,IR,DR>  CR: 44004482  XER: 20000000
May 14 23:28:23 localhost kernel: [ 8051.801889] TASK = c1e0c680[8739] 'ifconfig' THREAD: e551a000
May 14 23:28:23 localhost kernel: [ 8051.801896] GPR00: 000000B4 E551BD10 C1E0C680 00006498 EA1BC120 C0350000 C03544D0 00000000 
May 14 23:28:23 localhost kernel: [ 8051.801916] GPR08: DC4BDE84 8DF8D026 177AC7EB C001663C 24004488 100189FC 100B0000 00000000 
May 14 23:28:23 localhost kernel: [ 8051.801937] GPR16: 100F96E8 100E0000 100B0000 100E0000 DC705EEC FFFFFC18 E6E32ED8 00000001 
May 14 23:28:23 localhost kernel: [ 8051.801958] GPR24: E6E32ED8 E6E32ED8 E551BD18 E6E32ED8 EA1B3000 E6E32D6C 00000148 00000000 
May 14 23:28:23 localhost kernel: [ 8051.801979] NIP [C0016644] ioread32+0x8/0x14
May 14 23:28:23 localhost kernel: [ 8051.802003] LR [EA456984] bcm43xx_wireless_core_init+0x1fc/0xe8c [bcm43xx]
May 14 23:28:23 localhost kernel: [ 8051.802059] Call Trace:
May 14 23:28:23 localhost kernel: [ 8051.802065] [E551BD10] [EA45737C] bcm43xx_wireless_core_init+0xbf4/0xe8c [bcm43xx] (unreliable)
May 14 23:28:23 localhost kernel: [ 8051.802091] [E551BD60] [EA458B0C] wireless_core_up+0x48/0x11c [bcm43xx]
May 14 23:28:23 localhost kernel: [ 8051.802115] [E551BD80] [EA458E44] bcm43xx_select_wireless_core+0x264/0x45c [bcm43xx]
May 14 23:28:23 localhost kernel: [ 8051.802139] [E551BDD0] [EA45917C] bcm43xx_init_board+0xa4/0x144 [bcm43xx]
May 14 23:28:23 localhost kernel: [ 8051.802163] [E551BDF0] [C01D98F4] dev_open+0x78/0xcc
May 14 23:28:23 localhost kernel: [ 8051.802178] [E551BE10] [C01D77EC] dev_change_flags+0x13c/0x168
May 14 23:28:23 localhost kernel: [ 8051.802203] [E551BE30] [C02260B0] devinet_ioctl+0x5bc/0x71c
May 14 23:28:23 localhost kernel: [ 8051.802227] [E551BEA0] [C0226768] inet_ioctl+0xb0/0xdc
May 14 23:28:23 localhost kernel: [ 8051.802241] [E551BEB0] [C01CB080] sock_ioctl+0xd8/0x278
May 14 23:28:23 localhost kernel: [ 8051.802254] [E551BED0] [C0097624] do_ioctl+0x38/0x84
May 14 23:28:23 localhost kernel: [ 8051.802273] [E551BEE0] [C00976F4] vfs_ioctl+0x84/0x3f4
May 14 23:28:23 localhost kernel: [ 8051.802286] [E551BF10] [C0097AF4] sys_ioctl+0x90/0xa0
May 14 23:28:23 localhost kernel: [ 8051.802299] [E551BF40] [C00134F0] ret_from_syscall+0x0/0x38
May 14 23:28:23 localhost kernel: [ 8051.802320] --- Exception: c01 at 0xff6f2a8
May 14 23:28:23 localhost kernel: [ 8051.802335]     LR = 0xff6f240
May 14 23:28:23 localhost kernel: [ 8051.802341] Instruction dump:
May 14 23:28:23 localhost kernel: [ 8051.802348] 0c030000 4c00012c 5463043e 4e800020 7c0004ac a0630000 0c030000 4c00012c 
May 14 23:28:23 localhost kernel: [ 8051.802368] 5463043e 4e800020 7c0004ac 7c601c2c <0c030000> 4c00012c 4e800020 7c0004ac 
May 15 08:09:40 localhost kernel: [ 8051.802390]  <6>agpgart: Putting AGP V2 device at 0000:00:0b.0 into 1x mode
May 15 08:09:40 localhost kernel: [ 8052.143322] agpgart: Putting AGP V2 device at 0000:00:10.0 into 1x mode
May 15 08:09:40 localhost kernel: [ 8052.143402] [drm] Loading R200 Microcode
May 15 08:09:40 localhost kernel: [ 8052.200447] adb: starting probe task...
May 15 08:09:40 localhost gnome-power-manager: (dennis) An unknown error occured code='32' quark='g-exec-error-quark'
May 15 08:09:40 localhost kernel: [ 8052.458245] adb devices: [2]: 2 c4 [3]: 3 1 [7]: 7 1f
May 15 08:09:40 localhost kernel: [ 8052.465897] ADB keyboard at 2, handler 1
May 15 08:09:40 localhost kernel: [ 8052.481214] ADB mouse at 3, handler set to 4 (trackpad)
May 15 08:09:40 localhost kernel: [ 8052.540222] adb: finished probe task...
May 15 08:09:41 localhost gnome-power-manager: (dennis) Rechner wird aufgeweckt
May 15 08:09:41 localhost gnome-power-manager: (dennis) suspend failed
May 15 08:09:41 localhost NetworkManager: <information>^IWaking up from sleep. 
May 15 08:09:41 localhost NetworkManager: <information>^IDeactivating device eth1. 
May 15 08:10:00 localhost dhcdbd: dhco_input_option: Value -1 cannot be converted to type L 
May 15 08:10:00 localhost dhcdbd: dhco_parse_option_settings: bad option setting: old_dhcp_lease_time = -1 
May 15 08:10:54 localhost gconfd (dennis-4685): Beenden
May 15 08:10:54 localhost gdm[4271]: Master wird angehalten...
May 15 08:10:56 localhost init: tty4 main process (3873) killed by TERM signal
May 15 08:10:56 localhost init: tty5 main process (3874) killed by TERM signal
May 15 08:10:56 localhost init: tty2 main process (3876) killed by TERM signal
May 15 08:10:56 localhost init: tty3 main process (3877) killed by TERM signal
May 15 08:10:56 localhost init: tty1 main process (3878) killed by TERM signal
May 15 08:10:56 localhost init: tty6 main process (3881) killed by TERM signal
May 15 08:11:02 localhost avahi-daemon[4126]: Got SIGTERM, quitting.
May 15 08:11:02 localhost NetworkManager: <WARNING>^I nm_signal_handler (): Caught signal 15, shutting down normally. 
May 15 08:12:02 localhost hcid[4473]: Got disconnected from the system message bus
May 15 08:12:02 localhost mouseemu[4424]: mouseemu: cleaning... 
May 15 08:12:07 localhost hcid[4473]: Can't connect to system message bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
May 15 08:12:08 localhost exiting on signal 15