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Thread: Devede freezes Ubuntu

  1. #1
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    Dec 2009
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    Devede freezes Ubuntu

    Hi!

    I'm having the following hardware:
    Asus P5N-T Deluxe
    Quad Core 2.4GHZ
    4x2GB DDR2
    5 disks (1. Ubuntu, 2.+3. Raid1 mdadm, 4.+5. Raid1 mdadm)

    I'm using Ubuntu 9.10 (Koala), Linux wks01-ubuntu 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:02:15 UTC 2009 x86_64 GNU/Linux.

    I'm having a really strange problem, when i try to convert 2 avi files onto a Video DVD using Devede, it sometimes freezes the whole system. Means, that no input device works anymore, so the only way to get back control is pushing the reset or power button.

    I've tested a bit and leaving unchecked the "multi-core options" and writing the output on my first hard disk (no raid) it seems to work.
    It looks to me that wether it's this multi-core option or it's the fact that the machine has a lot of input/output that makes the machine freeze.

    So, maybe it's a problem with mdadm?
    After one of those tests that crashed the system (writing output onto one of the raid arrays), mdadm started a resync of the corresponding raid after reboot - with minimal data loss.
    Are there known problems with IO on mdadm?

    I've found this in my logs:
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069779] BUG: Bad page state in process mencoder pfn:1438f3
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069785] page:ffffea00046c7528 flags:0200000000000000 count:8 mapcount:0 mappingnull) index:0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069788] Pid: 5035, comm: mencoder Tainted: P 2.6.31-16-generic #53-Ubuntu
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069791] Call Trace:
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069799] [<ffffffff810df304>] bad_page+0xd4/0x130
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069802] [<ffffffff810dfa0c>] prep_new_page+0x2c/0x170
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069806] [<ffffffff810e008d>] get_page_from_freelist+0x2dd/0x5d0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069809] [<ffffffff810e093d>] __alloc_pages_nodemask+0xdd/0x150
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069812] [<ffffffff8110ceb2>] alloc_pages_current+0x82/0xd0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069815] [<ffffffff81112098>] new_slab+0x238/0x300
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069818] [<ffffffff81114ee9>] __slab_alloc+0x169/0x2d0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069822] [<ffffffff81144bb7>] ? alloc_buffer_head+0x17/0x50
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069825] [<ffffffff8111548d>] kmem_cache_alloc+0x13d/0x150
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069827] [<ffffffff81144bb7>] alloc_buffer_head+0x17/0x50
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069830] [<ffffffff81145516>] alloc_page_buffers+0x36/0x100
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069833] [<ffffffff811455fd>] create_empty_buffers+0x1d/0xc0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069836] [<ffffffff81148536>] __block_prepare_write+0x406/0x560
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069839] [<ffffffff8111bb50>] ? mem_cgroup_cache_charge+0xb0/0x140
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069843] [<ffffffff811b4a50>] ? ext4_da_get_block_prep+0x0/0x100
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069845] [<ffffffff8114882f>] block_write_begin+0x5f/0x100
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069848] [<ffffffff811b6fbd>] ext4_da_write_begin+0x12d/0x260
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069850] [<ffffffff811b4a50>] ? ext4_da_get_block_prep+0x0/0x100
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069854] [<ffffffff8104a87e>] ? __wake_up+0x4e/0x70
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069857] [<ffffffff810da182>] generic_perform_write+0xb2/0x1d0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069861] [<ffffffff811e0f0b>] ? ext4_xattr_get+0x5b/0x90
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069864] [<ffffffff810dafb3>] generic_file_buffered_write+0x83/0x140
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069867] [<ffffffff810dc930>] __generic_file_aio_write_nolock+0x240/0x470
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069870] [<ffffffff81134583>] ? touch_atime+0x33/0x150
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069873] [<ffffffff810dcc80>] generic_file_aio_write+0x70/0xf0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069876] [<ffffffff811ae3b9>] ext4_file_write+0x49/0x160
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069880] [<ffffffff8111f002>] do_sync_write+0xf2/0x130
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069883] [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069887] [<ffffffff81010875>] ? __switch_to+0x315/0x370
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069891] [<ffffffff81220a81>] ? security_file_permission+0x11/0x20
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069894] [<ffffffff8111f2e8>] vfs_write+0xb8/0x1a0
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069897] [<ffffffff8111fd9c>] sys_write+0x4c/0x80
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069901] [<ffffffff8152a289>] ? do_device_not_available+0x9/0x10
    Dec 24 10:57:39 wks01-ubuntu kernel: [ 3749.069904] [<ffffffff81012002>] system_call_fastpath+0x16/0x1b

    For the moment i'm writing the output to the first disk, so it's a workaround.

    But maybe there are other people having the same issues?

    Christian
    (cplinux)

  2. #2
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    Ok, it's not a workaround. It's been working twice. The third time, it froze my Ubuntu and I had to reset.

    Is there any mean to get it working?
    I just need something to produce a DVD structure (vob files) from avi or mpeg.

    Ok, finally my tests show me the following:
    Devede as well as e.g. ManDVD freeze the whole system as soon as you try to create the iso image.
    I assume this has something to do with the hard disk load caused by this.

    Another strange issue is that if I use one of these tools to create a dvd and afterwards want to shutdown my computer, it even hangs there.
    I have to switch it off keeping pressed the power button for some seconds.

    Any help appreciated.

    Christian
    (cplinux)
    Last edited by cplinux; December 25th, 2009 at 11:57 AM.

  3. #3
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    More information, when shutting down I have a lot of these messages:
    Dec 20 18:42:25 wks01-ubuntu kernel: [27166.742491] BUG: soft lockup - CPU#2 stuck for 61s! [rm:2942]
    Dec 20 18:43:31 wks01-ubuntu kernel: [27232.242490] BUG: soft lockup - CPU#2 stuck for 61s! [rm:2942]
    Dec 20 18:44:36 wks01-ubuntu kernel: [27297.742490] BUG: soft lockup - CPU#2 stuck for 61s! [rm:2942]
    Dec 20 18:45:42 wks01-ubuntu kernel: [27363.242490] BUG: soft lockup - CPU#2 stuck for 61s! [rm:2942]
    Dec 23 20:45:18 wks01-ubuntu kernel: [ 3233.043741] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:46:24 wks01-ubuntu kernel: [ 3298.543740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:47:29 wks01-ubuntu kernel: [ 3364.033739] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:48:35 wks01-ubuntu kernel: [ 3429.533740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:49:40 wks01-ubuntu kernel: [ 3495.033740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:50:46 wks01-ubuntu kernel: [ 3560.533740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:51:51 wks01-ubuntu kernel: [ 3626.033740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:52:57 wks01-ubuntu kernel: [ 3691.533740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:54:02 wks01-ubuntu kernel: [ 3757.023741] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:55:08 wks01-ubuntu kernel: [ 3822.523740] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:56:13 wks01-ubuntu kernel: [ 3888.023739] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:57:19 wks01-ubuntu kernel: [ 3953.523738] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:58:24 wks01-ubuntu kernel: [ 4019.023739] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 23 20:59:30 wks01-ubuntu kernel: [ 4084.523738] BUG: soft lockup - CPU#3 stuck for 61s! [python:2732]
    Dec 25 00:12:33 wks01-ubuntu kernel: [12080.671243] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:13:38 wks01-ubuntu kernel: [12146.171240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:14:44 wks01-ubuntu kernel: [12211.671239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:15:49 wks01-ubuntu kernel: [12277.171242] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:16:55 wks01-ubuntu kernel: [12342.671240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:18:00 wks01-ubuntu kernel: [12408.161240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:19:06 wks01-ubuntu kernel: [12473.661239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:20:11 wks01-ubuntu kernel: [12539.161241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:21:17 wks01-ubuntu kernel: [12604.661240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:22:22 wks01-ubuntu kernel: [12670.161240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:23:28 wks01-ubuntu kernel: [12735.661239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:24:33 wks01-ubuntu kernel: [12801.151239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:25:39 wks01-ubuntu kernel: [12866.651239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:26:44 wks01-ubuntu kernel: [12932.151239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:27:50 wks01-ubuntu kernel: [12997.651240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:28:55 wks01-ubuntu kernel: [13063.151240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:30:01 wks01-ubuntu kernel: [13128.651239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:31:06 wks01-ubuntu kernel: [13194.141238] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:32:12 wks01-ubuntu kernel: [13259.641240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:33:17 wks01-ubuntu kernel: [13325.141239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:34:23 wks01-ubuntu kernel: [13390.641239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:35:28 wks01-ubuntu kernel: [13456.141239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:36:34 wks01-ubuntu kernel: [13521.631239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:37:39 wks01-ubuntu kernel: [13587.131239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:38:45 wks01-ubuntu kernel: [13652.631241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:39:50 wks01-ubuntu kernel: [13718.131240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:40:56 wks01-ubuntu kernel: [13783.631240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:42:01 wks01-ubuntu kernel: [13849.131242] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:43:07 wks01-ubuntu kernel: [13914.621239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:44:12 wks01-ubuntu kernel: [13980.121239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:45:18 wks01-ubuntu kernel: [14045.621238] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:46:23 wks01-ubuntu kernel: [14111.121239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:47:29 wks01-ubuntu kernel: [14176.621239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:48:34 wks01-ubuntu kernel: [14242.121240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:49:40 wks01-ubuntu kernel: [14307.611239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:50:45 wks01-ubuntu kernel: [14373.111239] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:51:51 wks01-ubuntu kernel: [14438.611240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:52:56 wks01-ubuntu kernel: [14504.111241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:54:02 wks01-ubuntu kernel: [14569.611241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:55:07 wks01-ubuntu kernel: [14635.101241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:56:13 wks01-ubuntu kernel: [14700.601242] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:57:18 wks01-ubuntu kernel: [14766.101241] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]
    Dec 25 00:58:24 wks01-ubuntu kernel: [14831.601240] BUG: soft lockup - CPU#1 stuck for 61s! [gvfsd-trash:5490]

  4. #4
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    I hope it's ok if I provide some information here. It looks really like weird bug.
    Is it possible that it has something to do with the ext4 file system?
    I've just deactivated compiz as I found some hints in several other forums, but I don't think that it has to do something with my nvidia card.

  5. #5
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    Kernel log excerpt:

    Dec 25 19:46:33 wks01-ubuntu kernel: [ 9101.209676] BUG: unable to handle kernel paging request at ffffffff0000000b
    Dec 25 19:46:58 wks01-ubuntu kernel: [ 9126.811243] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:48:04 wks01-ubuntu kernel: [ 9192.311241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:49:09 wks01-ubuntu kernel: [ 9257.811241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:49:10 wks01-ubuntu kernel: [ 9258.082024] kernel BUG at /build/buildd/linux-2.6.31/fs/ext4/inode.c:2388!
    Dec 25 19:50:15 wks01-ubuntu kernel: [ 9323.301241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:50:57 wks01-ubuntu kernel: [ 9365.784399] BUG: unable to handle kernel paging request at ffffffff00000003
    Dec 25 19:51:20 wks01-ubuntu kernel: [ 9388.801241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:52:26 wks01-ubuntu kernel: [ 9454.301241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:53:31 wks01-ubuntu kernel: [ 9519.801240] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:54:37 wks01-ubuntu kernel: [ 9585.301241] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:55:42 wks01-ubuntu kernel: [ 9650.801239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:56:48 wks01-ubuntu kernel: [ 9716.291239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:57:53 wks01-ubuntu kernel: [ 9781.791240] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 19:58:59 wks01-ubuntu kernel: [ 9847.291239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:00:04 wks01-ubuntu kernel: [ 9912.791239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:01:10 wks01-ubuntu kernel: [ 9978.291239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:02:15 wks01-ubuntu kernel: [10043.781240] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:03:21 wks01-ubuntu kernel: [10109.281240] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:04:26 wks01-ubuntu kernel: [10174.781239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:05:32 wks01-ubuntu kernel: [10240.281239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:06:37 wks01-ubuntu kernel: [10305.781239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:07:43 wks01-ubuntu kernel: [10371.281239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:08:48 wks01-ubuntu kernel: [10436.771239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:09:54 wks01-ubuntu kernel: [10502.271239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:10:59 wks01-ubuntu kernel: [10567.771239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:12:05 wks01-ubuntu kernel: [10633.271239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:13:10 wks01-ubuntu kernel: [10698.771239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:14:16 wks01-ubuntu kernel: [10764.271239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:15:21 wks01-ubuntu kernel: [10829.761239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:16:27 wks01-ubuntu kernel: [10895.261239] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]
    Dec 25 20:17:32 wks01-ubuntu kernel: [10960.761240] BUG: soft lockup - CPU#1 stuck for 61s! [kswapd0:47]

  6. #6
    Join Date
    Dec 2009
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    11

    Re: Devede freezes Ubuntu

    I'VE FOUND THE SOLUTION!

    Now i'm using an older kernel:
    Linux wks01-ubuntu 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:53:52 UTC 2009 x86_64 GNU/Linux

    The system seems to run stable now, have created some dvds with DeVeDe without any freezes! No more messages in the logs.

    So i'll keep attention a bit when downloading updates in the future!

  7. #7
    Join Date
    Dec 2009
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    11

    Re: Devede freezes Ubuntu

    I have to add that it's not 100% solved, but the system stays much more stable.
    I hope that there will be a new kernel without these bugs soon ...

  8. #8
    Join Date
    Jul 2006
    Beans
    1,876
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Devede freezes Ubuntu

    Not an answer but have you tried the "Magic SysRQ" key combo to reboot a locked up system? Hold down your Alt plus SysRQ (Print Screen) keys and type in (ignore the period) reisub. This should reboot your pc without data loss which can occour when you hit the reset/power buttons.

    http://en.wikipedia.org/wiki/Magic_SysRq_key
    Old As Dust.

  9. #9
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    Yes I retried them several times (Alt+SysRQ+e, Alt+SysRQ+u, Alt+SysRQ+i, Alt+SysRQ+b), but no way.

    But I think I may have found the reason for the freeze now.

    In fact i'm having 2 RAID1 arrays. As filesystem I chose ext4.
    As soon as I write/copy data on one of those arrays, mdadm starts rebuilds. Maybe that's the reason for the strange kernel messages, too.
    Reason enough for me to reformat the disks with ext3.

    I'm testing this the next few days and I'll keep you up-2-date about my results.

  10. #10
    Join Date
    Dec 2009
    Beans
    11

    Re: Devede freezes Ubuntu

    Still freezes. No way to get it solved.
    I'll create another set of backups and after that I switch distribution or back to vista.

    Christian
    (cplinux)
    Last edited by cplinux; December 27th, 2009 at 01:23 PM.

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