I have this exact same problem. I have definitively narrowed it down to powernowd: I have configured it to not start in the regular bootup sequence, but when issuing a direct
/etc/init.d/powernowd start it crashes the box. Information of use: # uname -a Linux ian 2.6.15-25-amd64-generic #1 SMP PREEMPT Wed Jun 14 11:28:03 UTC 2006 x86_64 GNU/Linux # lsmod Module Size Used by binfmt_misc 15248 1 rfcomm 45600 0 l2cap 30464 5 rfcomm bluetooth 59268 4 rfcomm,l2cap isofs 39808 1 udf 86816 0 ppdev 11400 0 tc1100_wmi 9096 0 video 18824 0 acpi_sbs 24600 0 battery 12296 1 acpi_sbs i2c_acpi_ec 7040 1 acpi_sbs container 6272 0 button 8864 0 pcc_acpi 16128 0 sony_acpi 7188 0 ac 7176 1 acpi_sbs dev_acpi 15364 0 hotkey 13768 0 nls_utf8 3584 1 ntfs 101376 1 ipv6 300416 8 dm_mod 63176 1 md_mod 76792 0 parport_pc 40816 0 lp 15040 0 parport 44172 3 ppdev,parport_pc,lp floppy 74120 0 nvidia 5433176 12 snd_intel8x0 38440 1 snd_ac97_codec 110268 1 snd_intel8x0 snd_ac97_bus 4096 1 snd_ac97_codec snd_pcm_oss 59424 0 snd_mixer_oss 20608 1 snd_pcm_oss snd_pcm 104584 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss snd_timer 29064 1 snd_pcm snd 68576 8 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 13216 1 snd snd_page_alloc 13968 2 snd_intel8x0,snd_pcm pcspkr 3592 0 shpchp 51360 0 pci_hotplug 33168 1 shpchp psmouse 40324 0 serio_raw 9732 0 usblp 16128 0 i2c_nforce2 9216 0 i2c_core 26624 3 i2c_acpi_ec,nvidia,i2c_nforce2 af_packet 28172 2 tsdev 10240 0 evdev 14464 1 usbhid 43040 0 reiserfs 257904 2 ide_generic 2816 0 forcedeth 27908 0 ehci_hcd 36232 0 ohci_hcd 23684 0 usbcore 147004 5 usblp,usbhid,ehci_hcd,ohci_hcd ide_cd 35744 1 cdrom 41144 1 ide_cd ide_disk 19456 4 sata_nv 12420 0 libata 85536 1 sata_nv scsi_mod 160504 1 libata generic 7300 0 amd74xx 16944 0 [permanent] thermal 16524 0 processor 29224 1 thermal fan 6408 0 fbcon 43136 0 tileblit 4096 1 fbcon font 9984 1 fbcon bitblit 7424 1 fbcon softcursor 3712 1 bitblit capability 7176 0 commoncap 9728 1 capability Hardware is an Asus A8N motherboard with an Nvidia nforce4 chipset. I can provide any information you might ask for to help debug this. I'm a strong techie, but more or less a zero when it comes to the kernel. I once typed the kernel debug trap keystroke combination by mistake. That was fun. Anyhow, let me know what I can do to help debug this. -- freezes pc when launched https://launchpad.net/bugs/48792 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
