On Thu, 2007-03-01 at 00:36 -0500, Dmitry Torokhov wrote: > On Wednesday 28 February 2007 07:45, Rafael J. Wysocki wrote: > > > > > This gives: > > > > > > (gdb) l *evdev_disconnect+0xb1 > > > 0xa81 is in evdev_disconnect (include/asm/processor.h:716). > > > 711 However we don't do prefetches for pre XP Athlons currently > > > 712 That should be fixed. */ > > > 713 #define ARCH_HAS_PREFETCH > > > 714 static inline void prefetch(const void *x) > > > 715 { > > > 716 alternative_input(ASM_NOP4, > > > 717 "prefetchnta (%1)", > > > 718 X86_FEATURE_XMM, > > > 719 "r" (x)); > > > 720 } > > > > Hm, interesting. Looks like a pointer points to nowhere in > > input_unregister_device(), but I don't know which one. This may be > > an evdev problem ... > > > > Please try the patch below.
Hmmm. Now i get this BUG: BUG: unable to handle kernel paging request at virtual address 6b6b6b6b printing eip: f884aa91 *pde = 00000000 Oops: 0000 [#1] PREEMPT Modules linked in: tg3 i915 drm binfmt_misc rfcomm l2cap ipv6 fuse capability commoncap cpufreq_performance aoe af_packet nls_utf8 ntfs nls_iso8859_1 nls_cp437 vfat fat dm_snapshot dm_mirror dm_mod ieee80211_crypt_tkip ieee80211_crypt pd6729 snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_seq_device sermouse hci_vhci hci_uart wbsd mmc_block mmc_core tun msr cpuid cpufreq_stats container video backlight fan button speedstep_lib thermal battery ac speedstep_centrino processor sr_mod sbp2 scsi_mod ide_cd cdrom eth1394 hci_usb snd_intel8x0 pcmcia firmware_class snd_intel8x0m bluetooth snd_ac97_codec snd_pcm_oss snd_mixer_oss ac97_bus irda snd_pcm snd_timer i2c_i801 pcspkr crc_ccitt ohci1394 ieee1394 rtc yenta_socket rsrc_nonstatic pcmcia_core serio_raw i2c_core snd soundcore snd_page_alloc iTCO_wdt ehci_hcd uhci_hcd usbcore intel_agp agpgart evdev mousedev CPU: 0 EIP: 0060:[<f884aa91>] Not tainted VLI EFLAGS: 00010202 (2.6.21-rc2-x300 #2) EIP is at evdev_disconnect+0xc1/0xe0 [evdev] eax: 00000000 ebx: 6b6b675b ecx: 10000000 edx: 00000000 esi: f6db01a8 edi: f6db021c ebp: e0e5dea4 esp: e0e5de94 ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Process modprobe (pid: 5968, ti=e0e5c000 task=c1a5cac0 task.ti=e0e5c000) Stack: 00000000 f884c728 f6db01d8 f713832c e0e5dec4 c02aa9ff 00000000 f7138a58 f7138a58 f6d6d808 c1a1202c c1a12238 e0e5ded4 f8e9e0c5 c1a1202c f8e9fde0 e0e5dee8 c025f6d4 c1a12238 f8e9feb0 f8e9feb0 e0e5def8 c028d84a c1a12238 Call Trace: [<c010520a>] show_trace_log_lvl+0x1a/0x30 [<c01052c9>] show_stack_log_lvl+0xa9/0xd0 [<c010550c>] show_registers+0x21c/0x3a0 [<c0105794>] die+0x104/0x240 [<c0115bb5>] do_page_fault+0x2b5/0x5c0 [<c03384ac>] error_code+0x74/0x7c [<c02aa9ff>] input_unregister_device+0xaf/0x140 [<f8e9e0c5>] acpi_button_remove+0x2b/0x3f [button] [<c025f6d4>] acpi_device_remove+0x40/0x62 [<c028d84a>] __device_release_driver+0x6a/0xa0 [<c028df65>] driver_detach+0xf5/0x100 [<c028cc67>] bus_remove_driver+0x97/0xc0 [<c028df9b>] driver_unregister+0xb/0x20 [<c0260aa2>] acpi_bus_unregister_driver+0xd/0xf [<f8e9e7d9>] acpi_button_exit+0xd/0x6a [button] [<c013feb2>] sys_delete_module+0x142/0x1b0 [<c0104240>] syscall_call+0x7/0xb ======================= Code: f8 74 a4 8d b4 26 00 00 00 00 8d 83 08 04 00 00 b9 06 00 02 00 ba 1d 00 00 00 e8 8b 24 93 c7 8b 9b 10 04 00 00 81 eb 10 04 00 00 <8b> 83 10 04 00 00 0f 18 00 9 EIP: [<f884aa91>] evdev_disconnect+0xc1/0xe0 [evdev] SS:ESP 0068:e0e5de94 gdb points me in the same direction as before: (gdb) l *evdev_disconnect+0xc1 0xa91 is in evdev_disconnect (include/asm/processor.h:716). 711 However we don't do prefetches for pre XP Athlons currently 712 That should be fixed. */ 713 #define ARCH_HAS_PREFETCH 714 static inline void prefetch(const void *x) 715 { 716 alternative_input(ASM_NOP4, 717 "prefetchnta (%1)", 718 X86_FEATURE_XMM, 719 "r" (x)); 720 } /Kristian - 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/