On Mon, 18 May 2009 21:21:18 +0200 Niel Lambrechts <niel.lambrechts@xxxxxxxxx> wrote: > Hi, Huge response, huh? > I use s2disk on a daily basis, and I recently tried to switch to UXA in > xorg.conf in anticipation of KMS, for my Lenovo W500 with the integrated > Intel card active: > 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series > Chipset Integrated Graphics Controller (rev 07) > > Resuming worked just fine the last couple of days using UXA but I > admittedly frequently update Mesa/Xorg/git kernel. > > Tonight the X server crashed on resume and I was placed back at the KDM > prompt. I thought "$%^&$ the one time I actually had real applications > open! I am switching back to EXA!", so I changed AccelMethod back to > "exa" and decided to unload all i915 modules - i915, drm, and video. > > The latter unexpectedly returned "Killed", although none of these > modules showed any 'used by' count. > > I then did 'init 5' upon which I had a black screen, and decided to > reboot. I then noticed that the following OOPS occurred prior to the > reboot, likely the result of my "rmmod drm" or "rmmod output". > > May 18 19:35:56 linux-7vph kernel: Restarting tasks ... done. > May 18 19:36:07 linux-7vph kdm[2882]: X server for display :0 terminated > unexpectedly > May 18 19:36:18 linux-7vph bonobo-activation-server (niella-10440): > could not associate with desktop session: Failed to connect to socket > /tmp/dbus-snlESQlAbp: Connection refused > May 18 19:36:32 linux-7vph kernel: [drm:gm45_get_vblank_counter] *ERROR* > trying to get vblank count for disabled pipe 0 > May 18 19:37:01 linux-7vph kernel: [drm:gm45_get_vblank_counter] *ERROR* > trying to get vblank count for disabled pipe 0 > May 18 19:37:03 linux-7vph init: Switching to runlevel: 3 > May 18 19:37:34 linux-7vph kernel: mtrr: MTRR 4 not used > May 18 19:37:34 linux-7vph kernel: [drm] Module unloaded > May 18 19:37:47 linux-7vph kernel: BUG: unable to handle kernel NULL > pointer dereference at 00000010 > May 18 19:37:47 linux-7vph kernel: IP: [<c02fbbef>] klist_put+0x12/0x6f > May 18 19:37:47 linux-7vph kernel: *pde = 00000000 > May 18 19:37:47 linux-7vph kernel: Oops: 0000 [#1] SMP > May 18 19:37:47 linux-7vph kernel: last sysfs file: > /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/rfkill/rfkill1/state > May 18 19:37:47 linux-7vph kernel: Modules linked in: usbhid hid tun > i2c_algo_bit af_packet ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit > snd_pcm_oss snd_mixer_oss snd_seq binfmt_misc ip6t_REJECT > nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state > cpufreq_conservative cpufreq_userspace iptable_raw cpufreq_powersave > iptable_filter acpi_cpufreq speedstep_lib ip6table_mangle > nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 > ip_tables ip6table_filter ip6_tables x_tables ipv6 microcode fuse loop > dm_mod snd_usb_audio snd_usb_lib snd_rawmidi snd_seq_device arc4 ecb > iwlagn iwlcore thinkpad_acpi rfkill led_class snd_hda_codec_conexant > video(-) mac80211 ohci1394 battery ac output nvram ieee1394 rtc_cmos > snd_hda_intel wmi snd_hda_codec rtc_core button snd_hwdep snd_pcm > snd_timer snd i2c_i801 soundcore iTCO_wdt snd_page_alloc > iTCO_vendor_support intel_agp cfg80211 rtc_lib e1000e i2c_core agpgart > sr_mod cdrom joydev sg ehci_hcd uhci_hcd sd_mod usbcore ext4 jbd2 crc16 > edd ext3 mbcache jbd fan ahci l > May 18 19:37:47 linux-7vph kernel: ibata scsi_mod thermal processor > [last unloaded: drm] > May 18 19:37:47 linux-7vph kernel: > May 18 19:37:47 linux-7vph kernel: Pid: 10594, comm: rmmod Not tainted > (2.6.30-rc6-pae #47) 40622XG > May 18 19:37:47 linux-7vph kernel: EIP: 0060:[<c02fbbef>] EFLAGS: > 00010246 CPU: 1 > May 18 19:37:47 linux-7vph kernel: EIP is at klist_put+0x12/0x6f > May 18 19:37:47 linux-7vph kernel: EAX: f5c281f8 EBX: 00000001 ECX: > 00000004 EDX: 00000001 > May 18 19:37:47 linux-7vph kernel: ESI: 00000000 EDI: f5c281f8 EBP: > f44adef0 ESP: f44adedc > May 18 19:37:47 linux-7vph kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 > SS: 0068 > May 18 19:37:47 linux-7vph kernel: Process rmmod (pid: 10594, > ti=f44ac000 task=f5c7f0b0 task.ti=f44ac000) > May 18 19:37:47 linux-7vph kernel: Stack: > May 18 19:37:47 linux-7vph kernel: c0134d30 00000000 00000002 00000000 > c04297b4 f44adef8 c02fbc77 f44adf18 > May 18 19:37:47 linux-7vph kernel: c02fbd7b c04376d0 c04376d0 f5c281f8 > f5c7f0b0 00000000 f85e08c0 f44adf2c > May 18 19:37:47 linux-7vph kernel: c026d83e 00000000 f85e08c0 00000000 > f44adf3c c026e6e1 f85e0980 bf994ca0 > May 18 19:37:47 linux-7vph kernel: Call Trace: > May 18 19:37:47 linux-7vph kernel: [<c0134d30>] ? insert_work+0x78/0x81 > May 18 19:37:47 linux-7vph kernel: [<c02fbc77>] ? klist_del+0xd/0xf > May 18 19:37:47 linux-7vph kernel: [<c02fbd7b>] ? klist_remove+0x58/0x81 > May 18 19:37:47 linux-7vph kernel: [<c026d83e>] ? > bus_remove_driver+0x5c/0x89 > May 18 19:37:47 linux-7vph kernel: [<c026e6e1>] ? > driver_unregister+0x2a/0x2e > May 18 19:37:47 linux-7vph kernel: [<c0226253>] ? > acpi_bus_unregister_driver+0xd/0xf > May 18 19:37:47 linux-7vph kernel: [<f85de371>] ? > cleanup_module+0xd/0x25 [video] > May 18 19:37:47 linux-7vph kernel: [<c01477d5>] ? > sys_delete_module+0x18a/0x1e3 > May 18 19:37:47 linux-7vph kernel: [<c017b9be>] ? remove_vma+0x46/0x4c > May 18 19:37:47 linux-7vph kernel: [<c017c5d2>] ? do_munmap+0x20a/0x225 > May 18 19:37:47 linux-7vph kernel: [<c01029d4>] ? > sysenter_do_call+0x12/0x28 > May 18 19:37:47 linux-7vph kernel: Code: 90 83 7d f0 00 74 09 85 ff 74 > 05 89 f8 ff 55 f0 8b 46 04 5a 5b 5e 5f 5d c3 55 89 e5 57 89 c7 56 53 89 > d3 83 ec 08 8b 30 83 e6 fe <8b> 46 10 89 45 f0 89 f0 e8 0b f4 00 00 84 > db 74 17 f6 07 01 74 > May 18 19:37:47 linux-7vph kernel: EIP: [<c02fbbef>] klist_put+0x12/0x6f > SS:ESP 0068:f44adedc > May 18 19:37:47 linux-7vph kernel: CR2: 0000000000000010 > May 18 19:37:47 linux-7vph kernel: ---[ end trace c76e3f0980caa485 ]--- > May 18 19:38:41 linux-7vph sudo: niella : TTY=tty2 ; PWD=/home/niella > ; USER=root ; COMMAND=/sbin/reboot > The wordwrapping makes this painful to read. rmmod crashed under drivers/acpi/video.c:acpi_video_exit()'s call to acpi_bus_unregister_driver(). So it might be an acpi-related bug. If it's reproducible at all, please raise a (non-wordwrapped!) report against acpi at bugzilla.kernel.org, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
