Hello! I've found a kernel bug in linux-2.6-20-rc1 from kernel.org:
Dec 17 19:12:56 localhost kernel: kernel BUG at drivers/cpufreq/cpufreq_userspace.c:140! Dec 17 19:12:56 localhost kernel: invalid opcode: 0000 [#1] Dec 17 19:12:56 localhost kernel: PREEMPT Dec 17 19:12:56 localhost kernel: Modules linked in: acpi_cpufreq freq_table processor sg scsi_mod usbhid hid joydev nsc_ircc pcmcia snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss firmware_class snd_pcm snd_timer irda tifm_7xx1 tifm_sd mmc_block mmc_core ide_cd crc_ccitt i2c_i801 snd soundcore snd_page_alloc tifm_core psmouse ohci1394 ieee1394 ehci_hcd uhci_hcd yenta_socket rsrc_nonstatic pcmcia_core rtc pcspkr cdrom usbcore intel_agp agpgart evdev unix Dec 17 19:12:56 localhost kernel: CPU: 0 Dec 17 19:12:56 localhost kernel: EIP: 0060:[<c022fe0d>] Not tainted VLI Dec 17 19:12:56 localhost kernel: EFLAGS: 00010246 (2.6.20-rc1-vanilla #1) Dec 17 19:12:56 localhost kernel: EIP is at cpufreq_governor_userspace+0x32/0x134 Dec 17 19:12:56 localhost kernel: eax: c1b85480 ebx: c1b85480 ecx: c0308220 edx: 00000000 Dec 17 19:12:56 localhost kernel: esi: 00000000 edi: ffffffea ebp: c1b85480 esp: f7f2bdb4 Dec 17 19:12:56 localhost kernel: ds: 007b es: 007b ss: 0068 Dec 17 19:12:56 localhost kernel: Process modprobe (pid: 2098, ti=f7f2a000 task=c1938a70 task.ti=f7f2a000) Dec 17 19:12:56 localhost kernel: Stack: c1b85480 00000000 00000001 c022ef25 f7f2be04 00000000 00000000 c1b85480 Dec 17 19:12:56 localhost kernel: c022f023 c1b854ac c1b85480 f7f2be04 c1b854ac c022f1e4 c1b85480 f9b1c918 Dec 17 19:12:56 localhost kernel: f7f2bea4 c022fb42 c03498e8 00000000 00000001 00000002 00000000 00186a00 Dec 17 19:12:56 localhost kernel: Call Trace: Dec 17 19:12:56 localhost kernel: [<c022ef25>] __cpufreq_governor+0x56/0x87 Dec 17 19:12:56 localhost kernel: [<c022f023>] __cpufreq_set_policy+0xcd/0x100 Dec 17 19:12:56 localhost kernel: [<c022f1e4>] cpufreq_set_policy+0x2a/0x5f Dec 17 19:12:56 localhost kernel: [<c022fb42>] cpufreq_add_dev+0x1f1/0x269 Dec 17 19:12:56 localhost kernel: [<c022f1b2>] handle_update+0x0/0x8 Dec 17 19:12:56 localhost kernel: [<c020f7ff>] sysdev_driver_register+0x4c/0x94 Dec 17 19:12:56 localhost kernel: [<c022fd5c>] cpufreq_register_driver+0xa2/0x112 Dec 17 19:12:56 localhost kernel: [<f9b3504a>] acpi_cpufreq_init+0x4a/0x4c [acpi_cpufreq] Dec 17 19:12:56 localhost kernel: [<c012e538>] sys_init_module+0x147a/0x15b3 Dec 17 19:12:56 localhost kernel: [<c0102c56>] sysenter_past_esp+0x5f/0x85 Dec 17 19:12:56 localhost kernel: ======================= Dec 17 19:12:56 localhost kernel: Code: 08 83 fa 02 74 7f 83 fa 03 0f 84 bb 00 00 00 31 ff 4a 0f 85 0f 01 00 00 bf ea ff ff ff 85 f6 0f 85 02 01 00 00 83 78 20 00 75 04 <0f> 0b eb fe b8 4c 82 30 c0 e8 dd 2c 05 00 8d 43 58 ba 58 82 30 Dec 17 19:12:56 localhost kernel: EIP: [<c022fe0d>] cpufreq_governor_userspace+0x32/0x134 SS:ESP 0068:f7f2bdb4 Dec 17 19:12:56 localhost kernel: <7>ieee80211_crypt: registered algorithm 'NULL' ... My system is a Debian unstable/testing: Gnu C 4.1.2 Gnu make 3.81 binutils 2.17 util-linux 2.12r mount 2.12r module-init-tools 3.3-pre2 e2fsprogs 1.40-WIP reiserfsprogs 3.6.19 xfsprogs 2.8.18 pcmciautils 014 PPP 2.4.4 Linux C Library 2.3.6 Dynamic linker (ldd) 2.3.6 Procps 3.2.7 Net-tools 1.60 Console-tools 0.2.3 Sh-utils 5.97 udev 103 wireless-tools 28 Regards, Berthold Cogel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/