Thanks for the information. I followed your advice and updated BIOS. the command you asked me shows the following:
1101 03/09/2007 I cannot say that the issue is still reproducible, everything works okay (fingers crossed). The tricky thing is that the bug occurred to me only once (with the old BIOS firmware) and I cannot be 100% sure it was related to the BIOS only. As for the BIOS update I can say that the following 'warning' vanished now and that's good: Dec 17 21:05:58 heimdal kernel: [ 0.087878] ACPI BIOS Warning (bug): Incorrect checksum in table [SSDT] - 0x60, should be 0x67 (20131115/tbprint-214) Please give me some time for more testing and I'll write back. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1524641 Title: kernel BUG at /build/linux- FBu1FM/linux-3.13.0/include/drm/drm_mm.h:105! Status in linux package in Ubuntu: Incomplete Bug description: Hi. I just got this bug (was able to grep it from /var/log/syslog after my system stuck and I performed reboot manually). I am running Ubuntu 14.04 LTS, 3.13.0-67-generic kernel. All the relevant information (at least I hope so) provided in the attached files. An excerpt from the log: Dec 10 12:19:41 heimdal kernel: [10396.571954] ------------[ cut here ]------------ Dec 10 12:19:41 heimdal kernel: [10396.571972] kernel BUG at /build/linux-FBu1FM/linux-3.13.0/include/drm/drm_mm.h:105! Dec 10 12:19:41 heimdal kernel: [10396.571981] invalid opcode: 0000 [#1] SMP Dec 10 12:19:41 heimdal kernel: [10396.571988] Modules linked in: bnep rfcomm bluetooth snd_hda_codec_analog snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul snd_seq_virmidi gpio_ich snd_emu10k1 joydev coretemp nouveau kvm_intel snd_ut il_mem kvm mxm_wmi wmi video snd_hda_intel ttm snd_ac97_codec snd_hda_codec ac97_bus snd_hwdep serio_raw emu10k1_gp drm_kms_helper snd_pcm lpc_ich snd_page_alloc snd_seq_midi gameport snd_seq_midi_event snd_rawmidi snd_seq drm snd_seq_de vice snd_timer i2c_algo_bit snd parport_pc asus_atk0110 soundcore ppdev lp mac_hid parport pata_acpi hid_logitech ff_memless usbhid firewire_ohci hid firewire_core skge sky2 crc_itu_t ahci pata_jmicron libahci floppy Dec 10 12:19:41 heimdal kernel: [10396.572003] CPU: 1 PID: 939 Comm: Xorg Not tainted 3.13.0-67-generic #110-Ubuntu Dec 10 12:19:41 heimdal kernel: [10396.572003] Hardware name: System manufacturer System Product Name/P5B-Deluxe, BIOS 0614 09/05/2006 Dec 10 12:19:41 heimdal kernel: [10396.572003] task: f69a8000 ti: f6a60000 task.ti: f6a60000 Dec 10 12:19:41 heimdal kernel: [10396.572003] EIP: 0060:[<f895ed82>] EFLAGS: 00213246 CPU: 1 Dec 10 12:19:41 heimdal kernel: [10396.572003] EIP is at drm_mm_insert_node_in_range_generic+0x252/0x270 [drm] Dec 10 12:19:41 heimdal kernel: [10396.572003] EAX: ef17c688 EBX: ef17c680 ECX: 0000e999 EDX: 00000001 Dec 10 12:19:41 heimdal kernel: [10396.572003] ESI: 0000f9be EDI: ee5a4c00 EBP: f6a61c5c ESP: f6a61c30 Dec 10 12:19:41 heimdal kernel: [10396.572003] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Dec 10 12:19:41 heimdal kernel: [10396.572003] CR0: 80050033 CR2: b2957000 CR3: 2e8d1000 CR4: 000007f0 Dec 10 12:19:41 heimdal kernel: [10396.572003] Stack: Dec 10 12:19:41 heimdal kernel: [10396.572003] f6a61c60 ef17c680 ed4d2040 00000001 00000002 00000002 0000e997 0000f9be Dec 10 12:19:41 heimdal kernel: [10396.572003] ef17c680 f6a61cf0 e7cfa50c f6a61c90 f89e6033 00000000 00000000 00000000 Dec 10 12:19:41 heimdal kernel: [10396.572003] 0000fa70 00000001 ee5a4c58 0000fa70 ee5a4c00 00000002 f89e842c 00000001 Dec 10 12:19:41 heimdal kernel: [10396.572003] Call Trace: Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f89e6033>] ttm_bo_man_get_node+0x83/0xc0 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f89e130a>] ttm_bo_mem_space+0x13a/0x2d0 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f89e1798>] ttm_bo_move_buffer+0x98/0x100 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f89e18d3>] ttm_bo_validate+0xd3/0x150 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f89e1b40>] ttm_bo_init+0x1f0/0x330 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afc29c>] nouveau_bo_new+0x1ac/0x2b0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afb0a0>] ? nv10_bo_put_tile_region+0x40/0x40 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afe40f>] nouveau_gem_new+0x5f/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8957429>] ? drm_gem_handle_create+0x29/0x30 [drm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afe56c>] nouveau_gem_ioctl_new+0xac/0x1d0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afe4c0>] ? nouveau_gem_new+0x110/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8955792>] drm_ioctl+0x472/0x500 [drm] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8afe4c0>] ? nouveau_gem_new+0x110/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c11b51fc>] ? fsnotify_clear_marks_by_inode+0x7c/0xf0 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c11477cd>] ? handle_mm_fault+0x34d/0x8d0 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c141bd61>] ? __pm_runtime_resume+0x51/0x70 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8af6a0e>] nouveau_drm_ioctl+0x3e/0x70 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<f8af69d0>] ? nouveau_pmops_thaw+0x60/0x60 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c118b392>] do_vfs_ioctl+0x2e2/0x4d0 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c1662ee7>] ? __do_page_fault+0x237/0x520 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c10b2748>] ? ktime_get_ts+0x48/0x140 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c118b5e0>] SyS_ioctl+0x60/0x80 Dec 10 12:19:41 heimdal kernel: [10396.572003] [<c1666c4d>] sysenter_do_call+0x12/0x12 Dec 10 12:19:41 heimdal kernel: [10396.572003] Code: 89 10 c7 43 08 00 01 10 00 c7 43 0c 00 02 20 00 8b 4d ec e9 48 ff ff ff 90 8b 45 14 89 45 f0 e9 10 ff ff ff b8 e4 ff ff ff eb 9d <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b e8 af f6 ff ff 66 90 66 90 66 90 Dec 10 12:19:41 heimdal kernel: [10396.572003] EIP: [<f895ed82>] drm_mm_insert_node_in_range_generic+0x252/0x270 [drm] SS:ESP 0068:f6a61c30 Dec 10 12:19:41 heimdal kernel: [10396.573660] ---[ end trace 41e8bf5e24bbf3f0 ]--- Dec 10 12:19:41 heimdal kernel: [10396.575273] BUG: unable to handle kernel paging request at 00200218 Dec 10 12:19:41 heimdal kernel: [10396.575287] IP: [<f8a83d8e>] nouveau_mm_free+0x2e/0x120 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.575312] *pdpt = 000000002f30d001 *pde = 0000000000000000 Dec 10 12:19:41 heimdal kernel: [10396.575321] Oops: 0000 [#2] SMP Dec 10 12:19:41 heimdal kernel: [10396.575328] Modules linked in: bnep rfcomm bluetooth snd_hda_codec_analog snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul snd_seq_virmidi gpio_ich snd_emu10k1 joydev coretemp nouveau kvm_intel snd_ut il_mem kvm mxm_wmi wmi video snd_hda_intel ttm snd_ac97_codec snd_hda_codec ac97_bus snd_hwdep serio_raw emu10k1_gp drm_kms_helper snd_pcm lpc_ich snd_page_alloc snd_seq_midi gameport snd_seq_midi_event snd_rawmidi snd_seq drm snd_seq_de vice snd_timer i2c_algo_bit snd parport_pc asus_atk0110 soundcore ppdev lp mac_hid parport pata_acpi hid_logitech ff_memless usbhid firewire_ohci hid firewire_core skge sky2 crc_itu_t ahci pata_jmicron libahci floppy Dec 10 12:19:41 heimdal kernel: [10396.575457] CPU: 1 PID: 939 Comm: Xorg Tainted: G D 3.13.0-67-generic #110-Ubuntu Dec 10 12:19:41 heimdal kernel: [10396.575465] Hardware name: System manufacturer System Product Name/P5B-Deluxe, BIOS 0614 09/05/2006 Dec 10 12:19:41 heimdal kernel: [10396.575473] task: f69a8000 ti: f6a60000 task.ti: f6a60000 Dec 10 12:19:41 heimdal kernel: [10396.575478] EIP: 0060:[<f8a83d8e>] EFLAGS: 00213216 CPU: 1 Dec 10 12:19:41 heimdal kernel: [10396.575496] EIP is at nouveau_mm_free+0x2e/0x120 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.575502] EAX: 00000000 EBX: ee90c4d4 ECX: 00000000 EDX: efc84f00 Dec 10 12:19:41 heimdal kernel: [10396.575508] ESI: efc84740 EDI: 00200200 EBP: f6a61868 ESP: f6a61858 Dec 10 12:19:41 heimdal kernel: [10396.575514] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Dec 10 12:19:41 heimdal kernel: [10396.575519] CR0: 80050033 CR2: 00200218 CR3: 2e9c5000 CR4: 000007f0 Dec 10 12:19:41 heimdal kernel: [10396.575525] Stack: Dec 10 12:19:41 heimdal kernel: [10396.575917] efc84eec efc84ec0 ef351584 efc84ec0 f6a61874 f8ab90b9 00000000 f6a61898 Dec 10 12:19:41 heimdal kernel: [10396.576330] f8a847d5 efc84ec0 00000004 f8b274e9 00000000 ef351580 ef351580 ef264180 Dec 10 12:19:41 heimdal kernel: [10396.576751] f6a618a4 f8a848af ef351580 f6a618bc f8a82e8b 00203246 efcf6d80 ef351580 Dec 10 12:19:41 heimdal kernel: [10396.577165] Call Trace: Dec 10 12:19:41 heimdal kernel: [10396.577591] [<f8ab90b9>] nv04_instobj_dtor+0x19/0x30 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.577639] [<f8a847d5>] nouveau_object_ref+0xb5/0xc0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.577639] [<f8a848af>] nouveau_object_destroy+0x1f/0x30 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a82e8b>] nouveau_gpuobj_destroy+0x6b/0x80 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a8250d>] nouveau_engctx_destroy+0xad/0xc0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a8272d>] _nouveau_engctx_dtor+0xd/0x10 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a847d5>] nouveau_object_ref+0xb5/0xc0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a848af>] nouveau_object_destroy+0x1f/0x30 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a82e8b>] nouveau_gpuobj_destroy+0x6b/0x80 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a82ead>] _nouveau_gpuobj_dtor+0xd/0x10 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a847d5>] nouveau_object_ref+0xb5/0xc0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a84340>] nouveau_namedb_remove+0x50/0x60 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a8397e>] nouveau_handle_destroy+0x10e/0x140 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a838f1>] nouveau_handle_destroy+0x81/0x140 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8a8494c>] nouveau_object_del+0x7c/0xa0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8af7ea3>] nouveau_channel_del+0x43/0xd0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8affc21>] nouveau_abi16_chan_fini+0xf1/0x170 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8affe73>] nouveau_abi16_fini+0x33/0x70 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8af6e56>] nouveau_drm_preclose+0x36/0x70 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8956356>] drm_release+0x66/0x550 [drm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c13003f0>] ? lockref_put_or_lock+0x20/0x30 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c117bbc5>] __fput+0xc5/0x210 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c117bd4d>] ____fput+0xd/0x10 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1072921>] task_work_run+0x91/0xb0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1058e0f>] do_exit+0x26f/0x8f0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1056abf>] ? print_oops_end_marker+0x2f/0x40 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1660a18>] oops_end+0x98/0x120 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c101297e>] die+0x4e/0x70 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c166045e>] do_trap+0x9e/0xc0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1010170>] ? do_bounds+0x80/0x80 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c10101fb>] do_invalid_op+0x8b/0xa0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f895ed82>] ? drm_mm_insert_node_in_range_generic+0x252/0x270 [drm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c13041d7>] ? memcpy_toiovec+0x37/0x70 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1570f3c>] ? skb_copy_datagram_iovec+0xec/0x210 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afb09a>] ? nv10_bo_put_tile_region+0x3a/0x40 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afbe81>] ? nouveau_bo_move+0x481/0x5b0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c16601e3>] error_code+0x67/0x6c Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f895ed82>] ? drm_mm_insert_node_in_range_generic+0x252/0x270 [drm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f89e6033>] ttm_bo_man_get_node+0x83/0xc0 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f89e130a>] ttm_bo_mem_space+0x13a/0x2d0 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f89e1798>] ttm_bo_move_buffer+0x98/0x100 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f89e18d3>] ttm_bo_validate+0xd3/0x150 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f89e1b40>] ttm_bo_init+0x1f0/0x330 [ttm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afc29c>] nouveau_bo_new+0x1ac/0x2b0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afb0a0>] ? nv10_bo_put_tile_region+0x40/0x40 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afe40f>] nouveau_gem_new+0x5f/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8957429>] ? drm_gem_handle_create+0x29/0x30 [drm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afe56c>] nouveau_gem_ioctl_new+0xac/0x1d0 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afe4c0>] ? nouveau_gem_new+0x110/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8955792>] drm_ioctl+0x472/0x500 [drm] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8afe4c0>] ? nouveau_gem_new+0x110/0x110 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c11b51fc>] ? fsnotify_clear_marks_by_inode+0x7c/0xf0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c11477cd>] ? handle_mm_fault+0x34d/0x8d0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c141bd61>] ? __pm_runtime_resume+0x51/0x70 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8af6a0e>] nouveau_drm_ioctl+0x3e/0x70 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<f8af69d0>] ? nouveau_pmops_thaw+0x60/0x60 [nouveau] Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c118b392>] do_vfs_ioctl+0x2e2/0x4d0 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1662ee7>] ? __do_page_fault+0x237/0x520 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c10b2748>] ? ktime_get_ts+0x48/0x140 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c118b5e0>] SyS_ioctl+0x60/0x80 Dec 10 12:19:41 heimdal kernel: [10396.578555] [<c1666c4d>] sysenter_do_call+0x12/0x12 Dec 10 12:19:41 heimdal kernel: [10396.578555] Code: 57 56 53 83 ec 04 66 66 66 66 90 89 55 f0 8b 12 89 c3 85 d2 74 72 8b 7a 04 31 c0 8b 32 39 df 0f 44 f8 39 f3 0f 44 f0 85 ff 74 0a <80> 7f 18 00 0f 84 b8 00 00 00 85 f6 74 64 80 7e 18 00 75 5e 8b Dec 10 12:19:41 heimdal kernel: [10396.578555] EIP: [<f8a83d8e>] nouveau_mm_free+0x2e/0x120 [nouveau] SS:ESP 0068:f6a61858 Dec 10 12:19:41 heimdal kernel: [10396.578555] CR2: 0000000000200218 Dec 10 12:19:41 heimdal kernel: [10396.578555] ---[ end trace 41e8bf5e24bbf3f1 ]--- --- ApportVersion: 2.14.1-0ubuntu3 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: varnie 1747 F.... pulseaudio /dev/snd/controlC1: varnie 1747 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=5f9cdb76-a2f4-4564-808d-0d1ed270cf5a InstallationDate: Installed on 2015-11-02 (44 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2) MachineType: System manufacturer System Product Name Package: linux (not installed) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-67-generic root=UUID=7990ac7c-33a2-4fb2-b067-d2e75e2d0537 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.13.0-67.110-generic 3.13.11-ckt27 RelatedPackageVersions: linux-restricted-modules-3.13.0-67-generic N/A linux-backports-modules-3.13.0-67-generic N/A linux-firmware 1.127 RfKill: Tags: trusty Uname: Linux 3.13.0-67-generic i686 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/05/2006 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0614 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5B-Deluxe dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0614:bd09/05/2006:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5B-Deluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1524641/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
