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[Kelvin Gonzalez <kelvin.gonzalezvivas@xxxxxxxxx>]

Christopher M. Penalver (penalvch), I tested the latest upstream kernel available:
v3.15-utopic from 08-Jun-2014 19:23

The issue remains (See the attached files for more info):

[  787.285144] AMD-Vi: Completion-Wait loop timed out
[  787.285148] ------------[ cut here ]------------
[  787.285158] WARNING: CPU: 0 PID: 0 at /home/apw/COD/linux/drivers/iommu/amd_iommu.c:1248 __domain_flush_pages+0xf0/0x100()
[  787.285161] Modules linked in: rfcomm bnep bluetooth 6lowpan_iphc nls_iso8859_1 radeon kvm_amd kvm snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec crct10dif_pclmul crc32_pclmul snd_hwdep ghash_clmulni_intel aesni_intel snd_pcm aes_x86_64 lrw gf128mul glue_helper joydev ablk_helper snd_seq_midi cryptd snd_seq_midi_event snd_rawmidi snd_seq ttm drm_kms_helper psmouse drm snd_seq_device snd_timer snd microcode serio_raw soundcore i2c_algo_bit k10temp i2c_piix4 parport_pc ppdev mac_hid lp parport pata_acpi hid_generic usbhid hid ums_realtek uas usb_storage ahci pata_atiixp r8169 libahci mii
[  787.285225] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W     3.15.0-031500-generic #201406081435
[  787.285228] Hardware name: MEDION MS-7857/MS-7857, BIOS M7857W08.203 01/06/2014
[  787.285232]  00000000000004e0 ffff88043ec03a60 ffffffff81762943 0000000000000007
[  787.285237]  0000000000000000 ffff88043ec03aa0 ffffffff81069e2c ffffffff810c48f7
[  787.285242]  ffff88008d748020 0000000000001000 00000000fffffffb ffff88008d748020
[  787.285247] Call Trace:
[  787.285250]  <IRQ>  [<ffffffff81762943>] dump_stack+0x46/0x58
[  787.285262]  [<ffffffff81069e2c>] warn_slowpath_common+0x8c/0xc0
[  787.285268]  [<ffffffff810c48f7>] ? print_time.part.10+0x67/0x90
[  787.285274]  [<ffffffff81069e7a>] warn_slowpath_null+0x1a/0x20
[  787.285278]  [<ffffffff81620590>] __domain_flush_pages+0xf0/0x100
[  787.285284]  [<ffffffff810462c4>] ? native_apic_wait_icr_idle+0x24/0x30
[  787.285289]  [<ffffffff81621359>] __unmap_single.isra.25+0xf9/0x120
[  787.285294]  [<ffffffff816213eb>] unmap_sg+0x6b/0xb0
[  787.285299]  [<ffffffff8151d966>] ata_sg_clean+0x66/0xc0
[  787.285303]  [<ffffffff8151dc07>] __ata_qc_complete+0x47/0x140
[  787.285307]  [<ffffffff8151dd9d>] ata_qc_complete+0x9d/0x230
[  787.285311]  [<ffffffff8151dfca>] ata_qc_complete_multiple+0x9a/0xe0
[  787.285323]  [<ffffffffa00090b7>] ahci_handle_port_interrupt+0x107/0x1a0 [libahci]
[  787.285329]  [<ffffffff8106f809>] ? raise_softirq_irqoff+0x9/0x30
[  787.285338]  [<ffffffffa0009215>] ahci_interrupt+0xc5/0x120 [libahci]
[  787.285343]  [<ffffffff810c871d>] handle_irq_event_percpu+0x5d/0x1e0
[  787.285349]  [<ffffffff8111accc>] ? acct_account_cputime+0x1c/0x20
[  787.285353]  [<ffffffff810c88e8>] handle_irq_event+0x48/0x70
[  787.285359]  [<ffffffff810cb6d6>] handle_level_irq+0x76/0x100
[  787.285365]  [<ffffffff810161a2>] handle_irq+0x22/0x40
[  787.285371]  [<ffffffff8177b0de>] do_IRQ+0x5e/0x110
[  787.285376]  [<ffffffff8176fbad>] common_interrupt+0x6d/0x6d
[  787.285381]  [<ffffffff8106efa0>] ? __do_softirq+0x90/0x330
[  787.285385]  [<ffffffff8106f1b6>] ? __do_softirq+0x2a6/0x330
[  787.285390]  [<ffffffff810a2ac2>] ? __vtime_account_system+0x32/0x40
[  787.285394]  [<ffffffff8106f54e>] irq_exit+0x11e/0x140
[  787.285399]  [<ffffffff8177b0e7>] do_IRQ+0x67/0x110
[  787.285404]  [<ffffffff8176fbad>] common_interrupt+0x6d/0x6d
[  787.285406]  <EOI>  [<ffffffff8101c7b9>] ? sched_clock+0x9/0x10
[  787.285416]  [<ffffffff815fedde>] ? cpuidle_enter_state+0x5e/0xe0
[  787.285421]  [<ffffffff815fedd7>] ? cpuidle_enter_state+0x57/0xe0
[  787.285426]  [<ffffffff815fee97>] cpuidle_enter+0x17/0x20
[  787.285430]  [<ffffffff810b362d>] cpuidle_idle_call+0x10d/0x260
[  787.285435]  [<ffffffff810b3945>] cpu_idle_loop+0x1c5/0x1e0
[  787.285441]  [<ffffffff81d38120>] ? early_idt_handlers+0x120/0x120
[  787.285445]  [<ffffffff810b39cb>] cpu_startup_entry+0x6b/0x70
[  787.285451]  [<ffffffff8174a327>] rest_init+0x77/0x80
[  787.285456]  [<ffffffff81d38fbf>] start_kernel+0x39f/0x3a6
[  787.285460]  [<ffffffff81d38ab2>] ? repair_env_string+0x5a/0x5a
[  787.285465]  [<ffffffff817516df>] ? memblock_reserve+0x49/0x4e
[  787.285469]  [<ffffffff81d385f8>] x86_64_start_reservations+0x2a/0x2c
[  787.285473]  [<ffffffff81d38739>] x86_64_start_kernel+0x13f/0x14e
[  787.285477] ---[ end trace 6a879be97eb22748 ]---

The following tags were added:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-3.15-utopic
And the bug's Status was confirmed again.


** Attachment added: "dmesg output"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1280668/+attachment/4128474/+files/dmesg.txt

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https://bugs.launchpad.net/bugs/1280668

Title:
  [Medion MS-7857] Computer freezes or hangs during install, boot or
  usage

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Every time I tried to install this new it was hanging during the
  install or even before during boot. This system is a pre-installed
  windows 8 (64bits).

  In the file /var/log/dmesg I can see the following:
  [   28.119124] BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1]
  [   28.119127] Modules linked in:
  [   28.119130] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.11.0-15-generic #25~precise1-Ubuntu
  [   28.119132] Hardware name: MEDION MS-7857/MS-7857, BIOS M7857W08.203 01/06/2014
  [   28.119133] task: ffff880429620000 ti: ffff880429628000 task.ti: ffff880429628000
  [   28.119134] RIP: 0010:[<ffffffff81380382>]  [<ffffffff81380382>] delay_tsc+0x42/0x80
  [   28.119140] RSP: 0000:ffff880429629c68  EFLAGS: 00000246
  [   28.119141] RAX: 0000001c549ce3bd RBX: 000000000000032f RCX: 00000000549ce3bd
  [   28.119142] RDX: 0000000000000cf2 RSI: 0000000000000282 RDI: 0000000000000e50
  [   28.119143] RBP: ffff880429629c88 R08: 0000000000002000 R09: 0000000000000000
  [   28.119144] R10: 0000000000000330 R11: 0720072007200720 R12: 0000000000000026
  [   28.119145] R13: ffffffff81ef8bc2 R14: 0000000000000246 R15: ffff880429629c38
  [   28.119147] FS:  0000000000000000(0000) GS:ffff88043ec00000(0000) knlGS:0000000000000000
  [   28.119148] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  [   28.119149] CR2: ffff88043efff000 CR3: 0000000001c0d000 CR4: 00000000000407f0
  [   28.119150] Stack:
  [   28.119153]  0000000000001a0e ffff880429629cf0 0000000000001ff0 ffff880429579814
  [   28.119162]  ffff880429629c98 ffffffff813802bc ffff880429629cb8 ffffffff81607e55
  [   28.119164]  ffff880429579800 0000000000002000 ffff880429629d28 ffffffff81607f57
  [   28.119167] Call Trace:
  [   28.119170]  [<ffffffff813802bc>] __const_udelay+0x2c/0x30
  [   28.119174]  [<ffffffff81607e55>] wait_on_sem+0x35/0x70
  [   28.119176]  [<ffffffff81607f57>] iommu_queue_command_sync+0xc7/0x140
  [   28.119178]  [<ffffffff81607fe3>] iommu_queue_command+0x13/0x20
  [   28.119183]  [<ffffffff8160becd>] iommu_flush_all_caches+0x9d/0xf0
  [   28.119185]  [<ffffffff8160c7b1>] early_enable_iommus+0x61/0x160
  [   28.119189]  [<ffffffff81d2fc96>] ? memblock_find_dma_reserve+0x13d/0x13d
  [   28.119192]  [<ffffffff81d7a1e6>] state_next+0xbf/0x201
  [   28.119194]  [<ffffffff81d2fc96>] ? memblock_find_dma_reserve+0x13d/0x13d
  [   28.119196]  [<ffffffff81d7a33c>] iommu_go_to_state+0x14/0x2f
  [   28.119197]  [<ffffffff81d7a3c8>] amd_iommu_init+0x13/0xff
  [   28.119200]  [<ffffffff81d26123>] ? load_default_modules+0x9/0xb
  [   28.119203]  [<ffffffff81d2fca9>] pci_iommu_init+0x13/0x3e
  [   28.119206]  [<ffffffff8100212a>] do_one_initcall+0xfa/0x1b0
  [   28.119208]  [<ffffffff81086f00>] ? parse_args+0xd0/0x1d0
  [   28.119211]  [<ffffffff81d25954>] ? do_early_param+0x87/0x87
  [   28.119213]  [<ffffffff81d25fc6>] do_basic_setup+0x96/0xb9
  [   28.119215]  [<ffffffff81d25954>] ? do_early_param+0x87/0x87
  [   28.119218]  [<ffffffff81d45e83>] ? sched_init_smp+0x119/0x11b
  [   28.119220]  [<ffffffff81d260a1>] kernel_init_freeable+0xb8/0x131
  [   28.119224]  [<ffffffff81723be0>] ? rest_init+0x80/0x80
  [   28.119226]  [<ffffffff81723bee>] kernel_init+0xe/0xf0
  [   28.119229]  [<ffffffff817508ec>] ret_from_fork+0x7c/0xb0
  [   28.119231]  [<ffffffff81723be0>] ? rest_init+0x80/0x80
  [   28.119232] Code: 25 64 b0 00 00 0f ae f0 66 66 90 e8 c9 b0 c9 ff 66 90 41 89 c4 eb 11 66 90 f3 90 65 8b 1c 25 64 b0 00 00 41 39 dd 75 20 0f ae f0 <66> 66 90 e8 a6 b0 c9 ff 66 90 89 c2 44 29 e2 44 39 f2 72 da 5b
  [   28.219649] AMD-Vi: Completion-Wait loop timed out

  WORKAROUND: I was able to complete the install passing the following kernel parameter, then the computer boots fine but hangs for between 25 to 2 minutes and then continues working. I would expect the computer not to hang:
  noapic

  ---
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.11.0-15-generic 3.11.0-15.25~precise1 [modified: boot/vmlinuz-3.11.0-15-generic]
  ProcVersionSignature: Ubuntu 3.11.0-15.25~precise1-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.11.0-15-generic.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  kelvin     1952 F.... pulseaudio
   /dev/snd/controlC0:  kelvin     1952 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Generic'/'HD-Audio Generic at 0xfeb00000 irq 10'
     Mixer name	: 'Realtek ALC887-VD'
     Components	: 'HDA:10ec0887,14627857,00100302'
     Controls      : 45
     Simple ctrls  : 19
  Card1.Amixer.info:
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfea60000 irq 31'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100300'
     Controls      : 7
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Sat Feb 15 21:05:18 2014
  HibernationDevice: RESUME=UUID=adc021ed-5f7b-4297-ab84-751585ae04f8
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: MEDION MS-7857
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic.efi.signed root=UUID=79b13a2d-14bc-41d8-824b-aa2a64067215 ro noapic quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.79.9
  RfKill:

  SourcePackage: linux-lts-saucy
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/06/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: M7857W08.203
  dmi.board.name: MS-7857
  dmi.board.vendor: MEDION
  dmi.board.version: 1.1
  dmi.chassis.type: 3
  dmi.chassis.vendor: MEDION
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrM7857W08.203:bd01/06/2014:svnMEDION:pnMS-7857:pvr1.1:rvnMEDION:rnMS-7857:rvr1.1:cvnMEDION:ct3:cvr:
  dmi.product.name: MS-7857
  dmi.product.version: 1.1
  dmi.sys.vendor: MEDION

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