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out of memory
by Craig White 31 Jul '08

31 Jul '08

just had a server hang on me...seems pretty clearly that some process stole all the RAM (clamd?) Jul 30 16:26:04 srv1 kernel: auditd invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=-17 Jul 30 16:26:08 srv1 kernel: [<c0457d36>] out_of_memory+0x72/0x1a4 Jul 30 16:26:08 srv1 kernel: [<c0459161>] __alloc_pages+0x201/0x282 Jul 30 16:26:08 srv1 kernel: [<c045a3bf>] __do_page_cache_readahead +0xc4/0x1c6 Jul 30 16:26:08 srv1 kernel: [<c0438ecf>] wake_futex+0x3a/0x44 Jul 30 16:26:08 srv1 kernel: [<c043a2a9>] do_futex+0x738/0xb15 Jul 30 16:26:08 srv1 kernel: [<f88d0b96>] dm_any_congested+0x2f/0x35 [dm_mod] Jul 30 16:26:08 srv1 kernel: [<c04572d8>] filemap_nopage+0x151/0x315 Jul 30 16:26:08 srv1 kernel: [<c045fda3>] __handle_mm_fault+0x172/0x87b Jul 30 16:26:08 srv1 kernel: [<c0606c2b>] do_page_fault+0x20a/0x4b8 Jul 30 16:26:08 srv1 kernel: [<c0606a21>] do_page_fault+0x0/0x4b8 Jul 30 16:26:08 srv1 kernel: [<c0405a71>] error_code+0x39/0x40 Jul 30 16:26:08 srv1 kernel: ======================= snip... Jul 30 16:26:21 srv1 kernel: Free pages: 12044kB (124kB HighMem) Jul 30 16:26:21 srv1 kernel: Active:119791 inactive:120544 dirty:0 writeback:12 unstable:0 free:3011 slab:7550 mapped-file:1746 mapped-anon:215165 pagetabl es:3364 Jul 30 16:26:32 srv1 kernel: DMA free:4096kB min:68kB low:84kB high:100kB active:3948kB inactive:3608kB present:16384kB pages_scanned:17135 all_unreclaimab le? yes Jul 30 16:26:32 srv1 kernel: lowmem_reserve[]: 0 0 880 1007 Jul 30 16:26:33 srv1 kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no Jul 30 16:26:33 srv1 kernel: lowmem_reserve[]: 0 0 880 1007 Jul 30 16:26:33 srv1 kernel: Normal free:7824kB min:3756kB low:4692kB high:5632kB active:413832kB inactive:416972kB present:901120kB pages_scanned:2000672 all_unreclaimable? yes Jul 30 16:26:33 srv1 kernel: lowmem_reserve[]: 0 0 0 1023 Jul 30 16:26:33 srv1 kernel: HighMem free:124kB min:128kB low:264kB high:400kB active:61512kB inactive:61412kB present:130944kB pages_scanned:271904 all_un reclaimable? yes Jul 30 16:26:33 srv1 kernel: lowmem_reserve[]: 0 0 0 0 Jul 30 16:26:33 srv1 kernel: DMA: 0*4kB 0*8kB 24*16kB 4*32kB 0*64kB 0*128kB 2*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 4096kB Jul 30 16:26:34 srv1 kernel: DMA32: empty Jul 30 16:26:34 srv1 kernel: Normal: 44*4kB 4*8kB 234*16kB 7*32kB 1*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 7824kB Jul 30 16:26:34 srv1 kernel: HighMem: 3*4kB 0*8kB 3*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 124kB Jul 30 16:26:34 srv1 kernel: Swap cache: add 61987202, delete 61986895, find 48568667/56549915, race 0+19406 Jul 30 16:26:34 srv1 kernel: Free swap = 0kB Jul 30 16:26:34 srv1 kernel: Total swap = 2031608kB Jul 30 16:26:34 srv1 kernel: Free swap: 0kB Jul 30 16:26:34 srv1 kernel: 262112 pages of RAM Jul 30 16:26:34 srv1 kernel: 32736 pages of HIGHMEM Jul 30 16:26:34 srv1 kernel: 3327 reserved pages Jul 30 16:26:34 srv1 kernel: 8186 pages shared Jul 30 16:26:34 srv1 kernel: 313 pages swap cached Jul 30 16:26:34 srv1 kernel: 0 pages dirty Jul 30 16:26:34 srv1 kernel: 12 pages writeback Jul 30 16:26:34 srv1 kernel: 1746 pages mapped Jul 30 16:26:34 srv1 kernel: 7550 pages slab Jul 30 16:26:34 srv1 kernel: 3364 pages pagetables how does one determine who the culprit was? Craig

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ISC dhcpd and Vista clients
by Scott Silva 31 Jul '08

31 Jul '08

Has anyone had good luck serving dhcp addresses to Vista clients that work reliably? I have a test system and I can't seem to find out how to properly get dhcpd to always respond with broadcast instead of unicast since Vista won't honor unicast dhcp packets. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!

8 18

Unable to write video dvd using k3b
by lingu 31 Jul '08

31 Jul '08

Hi, I download dvd movie files from torrent.It is like below -rw-r--r-- 1 root root 1048614912 2008-07-24 16:49 VTS_01_1.VOB -rw-r--r-- 1 root root 538210304 2008-07-24 16:52 VTS_01_2.VOB File command on above giving the below ouput. file VTS_01_1.VOB VTS_01_1.VOB: MPEG sequence, v2, program multiplex file VTS_01_2.VOB VTS_01_2.VOB: MPEG sequence, v2, program multiplex When i opened any of the above files using vlc or kaffeine it is playing the movie properly.But when i try to create the video dvd file onto my dvd using k3b its giving error "Not able to find DVD format". Plz help me how to write this into dvd to watch this movie in normal dvd player. Regards LINGU

6 10

Re: [CentOS] Will CentOS 6's upstream be based on Fedora 10?
by Ross S. W. Walker 31 Jul '08

31 Jul '08

I have always wanted a distro in-between long term support and cutting edge. Say one that uses the kernel/command line part of a long term distro and the gui and gui apps of a cutting edge distro (maybe 1 back from the cutting edge). An kernel upgrade cycle of say 3 years, but a GUI that stays current within it's release. -Ross ----- Original Message ----- From: centos-bounces(a)centos.org <centos-bounces(a)centos.org> To: CentOS mailing list <centos(a)centos.org> Sent: Wed Jul 30 18:22:36 2008 Subject: Re: [CentOS] Will CentOS 6's upstream be based on Fedora 10? On Wed, 30 Jul 2008, Kanwar Ranbir Sandhu wrote: > The subject says it all. I'm asking because I've found Fedora 9 to be > buggy as hell - it is one of the worst Fedora releases I've ever used > (and I've been using it since Fedora Core 1). I'm putting up with it > for my work laptop, but it's not fun. :( > > My main home machine is still on Fedora Core 6 and will stay there until > CentOS 6 comes out. I don't want to use CentOS 5 because it's upstream > is based on Fedora Core 6, and I want something new! When CentOS 6 > hits, I will be using it for my work laptop. > > I might just keep Fedora for home my machine. I haven't decided yet if I > want to move up to Fedora 10 or CentOS 6. If you want something new, why do you think when CentOS 6 comes out it will be new ? And for how long ? Either you stick with Fedora/Ubuntu and have something new, or you just want to _use_ your computer and go with something less new like CentOS/Ubuntu LTS. There is no middle path. -- -- dag wieers, dag(a)centos.org, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors] _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

6 7

xfs on 5.2 (live cd + dvd)
by Michael Kress 31 Jul '08

31 Jul '08

Hello, I'm planning a server migration and being able to mount xfs file systems with the live cd would be a cruical feature. So before I download and try ... can anyone tell me whether the xfs is included in the 5.2 live cd? Later on I'm planning to install a new system with xen, 3ware 9550SX-4LP and xfs. The xen domains are of course located on xfs partitions. Do these features come with the standard dvd or do I have to build a custom kernel for that? Under centos-4.5 I chose xfs for performance reasons. With 5.2, is it still the fs of choice when it comes to performance or do you have better recommendations? (It will be a combined web and mail server with moderate traffic, i.e. not toooo much but not tooo little). Thanks in advance Regards Michael -- Michael Kress, kress(a)hal.saar.de http://www.michael-kress.de / http://kress.net P E N G U I N S A R E C O O L

7 11

Re: [Ntop-misc] PF_RING crashed the CentOS5 - BUG: soft lockup - CPU#7
by Ian jonhson 31 Jul '08

31 Jul '08

On Tue, Jul 29, 2008 at 3:25 PM, Luca Deri <deri(a)ntop.org> wrote: > Ian > from the trace below I don't see an error related to PF_RING but a > soft-lockup (see below). > > I have tested PF_RING on 2.6.24 and .26 and have not experienced the problem > you reported. hmm... I have restarted the operating system with CentOS's original kernel and done again my experiments. I found that bug has not occurred again. I don't know why. Maybe, the traditional libpcap has no provided enough capability like PF_RING. Or, perhapse something wrong is indeed in patched kernel or Dell hardware drivers. BTW, could you tell me what OS distribution you used in your testing PF_RING, RedHat AS4 or Others? And what kernel source codes are downloaded, from vendor's websites or www.kernel.org? I very thank you if you can recommend what OS distribution and what kernel version are put together can achieve the maximal stability. Thank anybody! Ian

4 8

Widescreen monitor won't configure to a wide screen - SOLVED
by MHR 31 Jul '08

31 Jul '08

Thanks to Ritesh Khadgaray: > Is there anything I'm missing? Some other configuration file or > record somewhere I need to tweak? with gconf-editor, check "/desktop/gnome/screen/default/0/resolution" . -- Ritesh Khadgaray Ph: +919970164885 Desktop LinuX N Stuff, RHCE Software Maintenance Engineer, Pune, Red Hat ॐ मणि पद्मे हूँ That was it! mhr

4 4

FreeNX and FF3
by Craig White 31 Jul '08

31 Jul '08

Anybody else notice how poorly Firefox 3 update on CentOS-5 works via NX connection? Any suggestions on fixing the visual artifacts/bad redraws? Craig

2 4

Static Linking, C++ Exceptions
by Darrin Thompson 31 Jul '08

31 Jul '08

I'm having a problem statically linking a big c++ application on Centos4. I can make it work on Centos5 and that's great. I just need to figure out a way to reproduce the problem on a small test case. The specific problem is that when I throw an exception, I get a segfault. It only happens on Centos4, and only on ia-32 machines. In an act of desparation I disassembled the bit of code that's segfaulting and got this: (gdb) disass Dump of assembler code for function _ZN14__gnu_internal10get_globalEv: 0x08579614 <...get_globalEv+0>: call 0x8577c3e <__i686.get_pc_thunk.cx> 0x08579619 <...get_globalEv+5>: add $0x3b31c7,%ecx 0x0857961f <...get_globalEv+11>: push %ebp 0x08579620 <...get_globalEv+12>: mov $0xfffffff8,%eax 0x08579626 <...get_globalEv+18>: mov %esp,%ebp 0x08579628 <...get_globalEv+20>: pop %ebp 0x08579629 <...get_globalEv+21>: add %gs:0x0,%eax <<<--- dies here! <<< 0x08579630 <...get_globalEv+28>: ret 0x08579631 <...get_globalEv+29>: nop End of assembler dump. When it dies, %gs is 0 which looks tls related. Only problem is that when I write tiny test programs to reproduce this, they work fine. %gs is nonzero and everybody is happy. But on my big hulking app, I can throw and catch an exception immediately on entry to main and it segfaults faithfully. Relevant compiler flags are these: g++ -c -o whatever.o -O0 -ggdb -Wno-deprecated -Werror -fPIC -Dmanything -Imanydirs whatever.cpp g++ -o whatever -static -static-libgcc many.o -Lmanydirs -lpthread -lanotherlib -lzlib -lesmtp -lnsl -lrpcsvc -lcrypt -lacl -ldl -lrt -landmanymore So I'm looking for some guidance on what things I could try to isolate this in a smaller app. -- Darrin

1 0

stale NFS locks
by Craig White 31 Jul '08

31 Jul '08

Because my primary server went down today, I have a couple of servers that have 'stale NFS mounts' which I can't unmount... # umount /home/storage/users umount: /home/storage/users: device is busy umount: /home/storage/users: device is busy short of restarting...is there a trick that I can do to umount/remount? Craig

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