I did see exactly the same problem on a Fujitsu Siemens Esprimo P5905 i945G PC with the original kernel of Kubuntu 7.04 (2.6.20-15) - BUT for me the problem is NOT gone after updating the kernel to 2.6.20-16.28. :-(
On the boot screen, I get exactly the same output as Malte - and the kernel BUG message looks similar (extracted from /var/log/kern.log): Jun 8 18:47:14 gernot kernel: [ 73.005534] ------------[ cut here ]------------ Jun 8 18:47:14 gernot kernel: [ 73.005540] kernel BUG at drivers/acpi/osl.c:448! Jun 8 18:47:14 gernot kernel: [ 73.005542] invalid opcode: 0000 [#1] Jun 8 18:47:14 gernot kernel: [ 73.005544] SMP Jun 8 18:47:14 gernot kernel: [ 73.005546] Modules linked in: acpi_cpufreq speedstep_lib cpufreq_conservative cpufreq_stats cpufreq_userspace cpufreq_ondemand cpu freq_powersave freq_table sony_acpi tc1100_wmi dev_acpi pcc_acpi battery sbs i2c_ec i2c_core asus_acpi container ac dock video button backlight ipt_TCPMSS xt_tcpmss pppoe pppox ipv6 ppp_generic slhc nls_utf8 ntfs lp fuse snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawm idi snd_seq_midi_event snd_seq parport_pc parport pcspkr serio_raw snd_timer snd_seq_device psmouse snd soundcore iTCO_wdt iTCO_vendor_support snd_page_alloc intel_a gp agpgart shpchp pci_hotplug af_packet tsdev evdev ipt_MASQUERADE xt_mark nf_nat_ftp iptable_mangle iptable_nat nf_nat xt_tcpudp nf_conntrack_ipv4 xt_state ipt_REJE CT xt_limit ipt_LOG nf_conntrack_ftp nf_conntrack nfnetlink iptable_filter ip_tables x_tables ext3 jbd mbcache sd_mod ata_generic sg sr_mod cdrom ata_piix libata flo ppy generic aic7xxx scsi_transport_s Jun 8 18:47:14 gernot kernel: i scsi_mod ehci_hcd tg3 uhci_hcd usbcore thermal processor fan fbcon tileblit font bitblit softcursor vesafb capability commoncap Jun 8 18:47:14 gernot kernel: [ 73.005620] CPU: 0 Jun 8 18:47:14 gernot kernel: [ 73.005621] EIP: 0060:[acpi_os_write_port+42/50] Not tainted VLI Jun 8 18:47:14 gernot kernel: [ 73.005622] EFLAGS: 00010297 (2.6.20-16-generic #2) Jun 8 18:47:14 gernot kernel: [ 73.005629] EIP is at acpi_os_write_port+0x2a/0x32 Jun 8 18:47:14 gernot kernel: [ 73.005632] eax: 00000001 ebx: 00000832 ecx: 00000001 edx: 00000001 Jun 8 18:47:14 gernot kernel: [ 73.005634] esi: 00000000 edi: 00000001 ebp: d6cea4e0 esp: d8151d38 Jun 8 18:47:14 gernot kernel: [ 73.005637] ds: 007b es: 007b ss: 0068 Jun 8 18:47:14 gernot kernel: [ 73.005639] Process modprobe (pid: 5982, ti=d8150000 task=dddb2030 task.ti=d8150000) Jun 8 18:47:14 gernot kernel: [ 73.005641] Stack: 00000000 e053b469 00000001 d8151d80 fffffff4 d6c61940 00000000 00000001 Jun 8 18:47:14 gernot kernel: [ 73.005648] 00000000 d8151dec 00000002 00000001 d6010832 00000001 00000000 002ecc78 Jun 8 18:47:14 gernot kernel: [ 73.005653] 002ecc78 e0532502 00000000 d6ccc780 e053b2b0 00000000 d6ccc780 c026f80c Jun 8 18:47:14 gernot kernel: [ 73.005660] Call Trace: Jun 8 18:47:14 gernot kernel: [ 73.005667] [<e053b469>] acpi_cpufreq_target+0x1b9/0x2e0 [acpi_cpufreq] Jun 8 18:47:14 gernot kernel: [ 73.005721] [<e053b2b0>] acpi_cpufreq_target+0x0/0x2e0 [acpi_cpufreq] Jun 8 18:47:14 gernot kernel: [ 73.005732] [__cpufreq_driver_target+60/64] __cpufreq_driver_target+0x3c/0x40 Jun 8 18:47:14 gernot kernel: [ 73.005744] [cpufreq_governor_performance+29/48] cpufreq_governor_performance+0x1d/0x30 Jun 8 18:47:14 gernot kernel: [ 73.005748] [__cpufreq_governor+66/144] __cpufreq_governor+0x42/0x90 Jun 8 18:47:14 gernot kernel: [ 73.005760] [__cpufreq_set_policy+228/304] __cpufreq_set_policy+0xe4/0x130 Jun 8 18:47:14 gernot kernel: [ 73.005775] [cpufreq_set_policy+80/144] cpufreq_set_policy+0x50/0x90 Jun 8 18:47:14 gernot kernel: [ 73.005788] [cpufreq_add_dev+814/928] cpufreq_add_dev+0x32e/0x3a0 Jun 8 18:47:14 gernot kernel: [ 73.005850] [handle_update+0/16] handle_update+0x0/0x10 Jun 8 18:47:14 gernot kernel: [ 73.005927] [sysdev_driver_register+101/176] sysdev_driver_register+0x65/0xb0 Jun 8 18:47:14 gernot kernel: [ 73.005940] [cpufreq_register_driver+116/288] cpufreq_register_driver+0x74/0x120 Jun 8 18:47:14 gernot kernel: [ 73.005951] [<e053f0a3>] acpi_cpufreq_init+0xa3/0xa9 [acpi_cpufreq] Jun 8 18:47:14 gernot kernel: [ 73.005964] [sys_init_module+349/7072] sys_init_module+0x15d/0x1ba0 Jun 8 18:47:14 gernot kernel: [ 73.006090] [sys_mmap2+205/208] sys_mmap2+0xcd/0xd0 Jun 8 18:47:14 gernot kernel: [ 73.006117] [sysenter_past_esp+105/169] sysenter_past_esp+0x69/0xa9 Jun 8 18:47:14 gernot kernel: [ 73.006168] ======================= Jun 8 18:47:14 gernot kernel: [ 73.006170] Code: c3 83 f9 10 53 89 c3 89 d0 74 12 83 f9 20 74 16 83 f9 08 75 16 0f b6 c2 89 da ee eb 12 0f b7 c2 89 da 66 ef eb 09 89 da ef eb 04 <0f> 0b eb fe 5b 31 c0 c3 8b 00 c7 00 01 00 00 00 31 c0 c3 c3 85 Jun 8 18:47:14 gernot kernel: [ 73.006199] EIP: [acpi_os_write_port+42/50] acpi_os_write_port+0x2a/0x32 SS:ESP 0068:d8151d38 -- starting ACPI services causes segmentation fault with kernel 2.6.20 https://bugs.launchpad.net/bugs/113539 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
