Booting with the option noapic, and EFI disabled. After 30 minutes I was able to login into the computer using tty1. The Graphical iterface didn't work.
With the dmesg command I was able to validate the issue: [ 28.145723] BUG: soft lockup - CPU#2 stuck for 23s! [swapper/0:1] [ 28.145768] Modules linked in: [ 28.145772] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.13.0-24-generic #47-Ubuntu [ 28.145773] Hardware name: MEDION MS-7857/MS-7857, BIOS M7857W08.203 01/06/2014 [ 28.145775] task: ffff880429638000 ti: ffff880429636000 task.ti: ffff880429636000 [ 28.145776] RIP: 0010:[<ffffffff813697a2>] [<ffffffff813697a2>] delay_tsc+0x42/0x80 [ 28.145786] RSP: 0000:ffff880429637cd0 EFLAGS: 00000246 [ 28.145787] RAX: 0000000000000002 RBX: ffffffff8185a960 RCX: 0000000001c2c8c8 [ 28.145788] RDX: 0000000043fd4092 RSI: 0000000090008ffe RDI: 0000000000000e50 [ 28.145789] RBP: ffff880429637ce8 R08: 0000000000000246 R09: 0000000000001ff0 [ 28.145790] R10: ffffffff8185a960 R11: ffff880429637a36 R12: ffffffff81ebbce2 [ 28.145791] R13: ffff880429637cc0 R14: ffff880429637ca0 R15: 0000000000000026 [ 28.145793] FS: 0000000000000000(0000) GS:ffff88043ed00000(0000) knlGS:0000000000000000 [ 28.145794] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 28.145795] CR2: 0000000000000000 CR3: 0000000001c0e000 CR4: 00000000000407e0 [ 28.145796] Stack: [ 28.145797] 0000000000004f98 ffff880429637d38 0000000000002000 ffff880429637cf8 [ 28.145799] ffffffff813696dc ffff880429637d18 ffffffff815e7f15 ffff8804295ec014 [ 28.145801] 0000000000000246 ffff880429637d80 ffffffff815e928a 0000000129637d48 [ 28.145804] Call Trace: [ 28.145808] [<ffffffff813696dc>] __const_udelay+0x2c/0x30 [ 28.145811] [<ffffffff815e7f15>] wait_on_sem+0x35/0x70 [ 28.145813] [<ffffffff815e928a>] iommu_queue_command_sync+0x9a/0x150 [ 28.145816] [<ffffffff815ea5b8>] ? iommu_completion_wait+0x58/0x60 [ 28.145821] [<ffffffff815ecc36>] iommu_flush_all_caches+0xe6/0x100 [ 28.145823] [<ffffffff815ed2bc>] early_enable_iommus+0x1dc/0x280 [ 28.145827] [<ffffffff81d3ec9a>] ? memblock_find_dma_reserve+0x124/0x124 [ 28.145830] [<ffffffff81d88b33>] state_next+0xcf/0x6d0 [ 28.145833] [<ffffffff81055495>] ? free_init_pages+0x75/0xa0 [ 28.145835] [<ffffffff81d3ec9a>] ? memblock_find_dma_reserve+0x124/0x124 [ 28.145837] [<ffffffff81d8914b>] iommu_go_to_state+0x17/0x2a [ 28.145839] [<ffffffff81d891cb>] amd_iommu_init+0x10/0x116 [ 28.145841] [<ffffffff81d3ecac>] pci_iommu_init+0x12/0x3c [ 28.145844] [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0 [ 28.145846] [<ffffffff810892f5>] ? parse_args+0x225/0x3f0 [ 28.145849] [<ffffffff81d350f6>] kernel_init_freeable+0x17b/0x200 [ 28.145851] [<ffffffff81d348e5>] ? do_early_param+0x88/0x88 [ 28.145854] [<ffffffff81703fa0>] ? rest_init+0x80/0x80 [ 28.145856] [<ffffffff81703fae>] kernel_init+0xe/0x130 [ 28.145859] [<ffffffff817263fc>] ret_from_fork+0x7c/0xb0 [ 28.145862] [<ffffffff81703fa0>] ? rest_init+0x80/0x80 [ 28.145863] Code: b0 00 00 0f ae f0 66 66 90 e8 7b 1a cb ff 66 90 89 c3 eb 14 0f 1f 44 00 00 f3 90 65 8b 04 25 64 b0 00 00 41 39 c5 75 1d 0f ae f0 <66> 66 90 e8 56 1a cb ff 66 90 89 c2 29 d8 44 39 e0 72 db 5b 41 [ 28.231521] AMD-Vi: Completion-Wait loop timed out I'm attaching the output of the dmesg command for your review. ** Attachment added: "Output of the dmesg" https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1280668/+attachment/4124168/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1280668 Title: [Medion MS-7857] Computer freezes or hangs during install, boot or usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1280668/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
