October 2007 - wlug - University of Waikato Mail Lists

by Bruce Kingsbury

Saturday November 3rd, 10:00 am to 4:00 pm We will be holding our SaturdayWorkshop at Te Whanau Pūtahi, the community church at the end of Oxford Street. We'll have the usual tables, power, various ISO's, Internet, coffee and light lunch, etc. http://wlug.org.nz/SaturdayWorkshop.2007-11-03

12 years, 11 months

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Follow-up to Monday night Gaming meeting

by Bruce Kingsbury

A lot of people asked me after the meeting for various web addresses of software mentioned, so I've added links for everything that was discussed (and some that I intended to discuss, but didn't get to) on the meeting page. http://wlug.org.nz/MeetingTopics.2007-10-29 Plus a brief summary of everything.

12 years, 11 months

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ODF group abandons ODF!

by Ian McDonald

This one is a little bizarre! http://computerworld.co.nz/news.nsf/news/9793D43B77C420EECC257384001906D0 -- Web1: http://wand.net.nz/~iam4/ Web2: http://www.jandi.co.nz Blog: http://iansblog.jandi.co.nz

12 years, 11 months

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REMINDER: WLUG meeting tonight!

by Meeting Reminder Bot

There's a WLUG meeting tonight: ---------------------------------------------------------------------- 7:30pm, TW.2.05 (http://www.wlug.org.nz/TW). Linux gaming: James and Bruce will present some Games that run on Linux, either natively or under Windows compatibility wrappers like Wine.

12 years, 12 months

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Kernel Killer

by elroy

Has anyone seen this before? I'm pretty sure I know what it is :-) How I did it: Select ~4,000 image files in file manager (to delete) - but with 'Show As Thumbnail' selected - managed to kill an E6300 (Dual-Core 1.86GHz w/2GB RAM and 2GB SWAP). Questions: ========== a) Is this a case of the kernel running out of physical AND virtual memory? b) I have a SWAP file size of " cat /proc/swaps Filename Type Size Used Priority /dev/sdb2 partition 3903784 0 -1 " Should be ~4GB - but 'top' was only showing 2GB in-use/useable - should I have split the 4GB into 2x 2GB SWAP partitions for GNU/Linux to utilise it all? c) Can anyone explain in nice laymans terms the correct use of the 'Alt + SysReq' and 'Alt + S' and 'Alt + U' and 'Alt + B' key sequence (I used this to (I think) tell the machine to safely shut down). Cheers, Elroy. > [ 5756.653718] passkey-agent invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0 > [ 5756.653741] [<c015a915>] out_of_memory+0x175/0x1b0 > [ 5756.653759] [<c015c364>] __alloc_pages+0x2e4/0x340 > [ 5756.653770] [<c015db69>] __do_page_cache_readahead+0x109/0x250 > [ 5756.653781] [<c02ed622>] io_schedule+0x22/0x30 > [ 5756.653787] [<c02ed8cb>] __wait_on_bit_lock+0x5b/0x70 > [ 5756.653790] [<c01570d0>] sync_page+0x0/0x40 > [ 5756.653799] [<c01570b3>] __lock_page+0x73/0x80 > [ 5756.653809] [<c0159b13>] filemap_nopage+0x2c3/0x3a0 > [ 5756.653820] [<c01643ea>] __handle_mm_fault+0x14a/0xa40 > [ 5756.653825] [<c0102236>] __switch_to+0xc6/0x1f0 > [ 5756.653842] [<c02f0658>] do_page_fault+0x128/0x600 > [ 5756.653854] [<c02f0530>] do_page_fault+0x0/0x600 > [ 5756.653859] [<c02eed0c>] error_code+0x7c/0x90 > [ 5756.653872] ======================= > [ 5756.653873] Mem-info: > [ 5756.653875] DMA per-cpu: > [ 5756.653877] CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 > [ 5756.653880] CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 > [ 5756.653882] Normal per-cpu: > [ 5756.653884] CPU 0: Hot: hi: 186, btch: 31 usd: 38 Cold: hi: 62, btch: 15 usd: 60 > [ 5756.653887] CPU 1: Hot: hi: 186, btch: 31 usd: 59 Cold: hi: 62, btch: 15 usd: 61 > [ 5756.653888] HighMem per-cpu: > [ 5756.653890] CPU 0: Hot: hi: 186, btch: 31 usd: 143 Cold: hi: 62, btch: 15 usd: 45 > [ 5756.653893] CPU 1: Hot: hi: 186, btch: 31 usd: 121 Cold: hi: 62, btch: 15 usd: 23 > [ 5756.653897] Active:247244 inactive:246390 dirty:0 writeback:0 unstable:0 free:12228 slab:5093 mapped:650 pagetables:2205 > [ 5756.653901] DMA free:8128kB min:68kB low:84kB high:100kB active:600kB inactive:708kB present:16256kB pages_scanned:2015 all_unreclaimable? yes > [ 5756.653903] lowmem_reserve[]: 0 873 2015 > [ 5756.653908] Normal free:40296kB min:3744kB low:4680kB high:5616kB active:408760kB inactive:407108kB present:894080kB pages_scanned:1419965 all_unreclaimable? yes > [ 5756.653911] lowmem_reserve[]: 0 0 9139 > [ 5756.653915] HighMem free:488kB min:512kB low:1736kB high:2960kB active:579616kB inactive:577744kB present:1169800kB pages_scanned:1908817 all_unreclaimable? yes > [ 5756.653918] lowmem_reserve[]: 0 0 0 > [ 5756.653920] DMA: 2*4kB 49*8kB 61*16kB 29*32kB 13*64kB 5*128kB 5*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 8128kB > [ 5756.653928] Normal: 32*4kB 23*8kB 13*16kB 17*32kB 91*64kB 5*128kB 2*256kB 7*512kB 14*1024kB 5*2048kB 1*4096kB = 40296kB > [ 5756.653936] HighMem: 8*4kB 9*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 488kB > [ 5756.653945] Swap cache: add 1476597, delete 1476597, find 120489/168440, race 4+39 > [ 5756.653947] Free swap = 0kB > [ 5756.653948] Total swap = 3903784kB > [ 5756.653950] Free swap: 0kB > [ 5756.658573] 524128 pages of RAM > [ 5756.658575] 294752 pages of HIGHMEM > [ 5756.658576] 5910 reserved pages > [ 5756.658577] 3523 pages shared > [ 5756.658579] 0 pages swap cached > [ 5756.658580] 0 pages dirty > [ 5756.658581] 0 pages writeback > [ 5756.658582] 650 pages mapped > [ 5756.658584] 5093 pages slab > [ 5756.658585] 2205 pages pagetables

12 years, 12 months

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WLUG members

by Simon Green

Hi all, For those that are WLUG members, this is a friendly reminder that your 2007-08 subs are now due. There are three easy payment methods: 1) Bring $20 cash or a cheque to the WLUG meeting tomorrow night. You will be issued with a receipt 2) Pay via Internet banking, or at an ASB branch. Please make sure your login name or real name is used as a reference. The WLUG bank account number is available at https://secure.wlug.org.nz/join.html 3) Send a cheque to WLUG, PO Box 21051, Hamilton 3249. Make sure that your user name is on the back of the cheque. Reminder notices will be sent out in a fortnight for current members who have not paid. If you are not a member of WLUG, now is an excellent time to think about joining. It is only $20 per year, and you'll be supporting a good cause. Benefits of membership as well as information on how you can sign up can be found at: https://secure.wlug.org.nz/join.html And finally for those that have already paid their 2007-08 membership, thank you very much Simon Green WLUG Membership Manager membership(a)wlug.org.nz

12 years, 12 months

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The Vampire resurrects itself from the stake plunged into it

by Ian McDonald

Well we thought that SCO had died with it's bankruptcy protection but it appears the Linux side hasn't. http://www.linux-watch.com/news/NS7753951114.html Note that any new owners will have any more lucnk I think. -- Web1: http://wand.net.nz/~iam4/ Web2: http://www.jandi.co.nz Blog: http://iansblog.jandi.co.nz

12 years, 12 months

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REMINDER: WLUG meeting is on Monday

by Meeting Reminder Bot

There's a Waikato Linux Users Group meeting on Monday: ---------------------------------------------------------------------- 7:30pm, TW.2.05 (http://www.wlug.org.nz/TW). Linux gaming: James and Bruce will present some Games that run on Linux, either natively or under Windows compatibility wrappers like Wine.

12 years, 12 months

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Mounting an image

by Chris O'Halloran

Two weeks ago, I discovered my harddrive was dead. The bios won't even detect it :( I tried to restore my backups onto another computer from a couple of tar.gz files on a USB drive only to find errors when gunzipping them. :(. I can get about 1/3 files off.) However, I notice that somehow I made an image of the whole harddrive (12 partitions) and it stored on my USB drive too as /kubuntu/dev/hda I tried doing the mount /media/disk/kubuntu/dev/hda -o loop /mnt/hda (after making /mnt/hda first) but it (not unsuprisingly) can't figure out the partitions.of find a file system. There were all ext2 or ext3 from memory Is there a way I can mount this image? Do I need the partition tables? would ubuntu dapper have made a copy and put them anywhere? I have /etc and /var from the disk too. This /dev/hda is about 25G so I am wondering if I have a suitable image. And maybe I can recoved the photos etc. Thanks for any thoughts or suggestions. Cheers Chris

12 years, 12 months

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Email training system

by Michael McDonald

Does anyone know of a email server, preferably free, that can be used in a training environment? Current requirements are POP3 and SMTP access. All email is to be confined to a single domain (the classroom - not registered) and access to the (external) Internet should be blocked. It appears there could be a fair amount of work in setting up "standard"software for this limited task, but I would prefer something that most people would find simple to install to maintain. Michael

12 years, 12 months

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wlug October 2007