similar to: Lots of "swapper: page allocation failure" and other memory related messages - 2.6.16-xen0

Hi, One of my servers has had its dom0 "oops" over and over twice in the last week. Unfortunately this is newly deployed so I have no idea if it is down to Xen or not. xen_changeset : Mon Dec 12 18:47:47 2005 +0100 8270:4ad23e798798 dom0 kernel is a vanilla 2.6.12 with Ralph''s .6+xen kernel patch applied. x86_32 sarge packages were used. The .config is

Hi list, We are experiencing a memory leak on our SquirrelMail server since the 5.3 update. The server is fully updated, only stock rpms. The httpd processes are eating all the memory and after swapping like hell, the server became unresponsive and we must hard-reboot it. The server is not that much loaded (max 10-15 concurrent users but with tons of mail in their inbox). Configuration's

Hi all, yeah ok don''t laugh at my hardware. I got this.... is it normal to get OOM killers with heavy usage of LVM CoW clones and only 64mb ram assigned to dom0 PIII (also is running apache2/nfs/sshd and 4 idling domU''s) Aug 15 14:40:27 xen5etch kernel: printk: 36 messages suppressed. Aug 15 14:40:30 xen5etch kernel: oom-killer: gfp_mask=0x280d2, order=0 Aug 15 14:40:30

Hi guys, Another strange behavior with some test servers. They are booted using 2.6.11.12, xen-2.0.6, Debian. The only daemons running on dom0 are : xend, smtp, quagga (ospf), portmap (nfs client), sshd. Memory usage at startup is aroung 30 MB. Dom0 reserved memory is 256 MB. The only things that happen on this server are domU''s start/stop (xm create, xm shutdown) and a

hi xen 4.0.1 w/2.6.32.41 Last week dom0 experienced an hard crash and box need to be restarted manually (despite kernel.panic=20). Serial console was not setup, only netconsole. No relevant entries through netconsole, but analyzing logs I see some crashes twenty minutes before fatal hang. Dec 2 01:29:39 xenhost-rack1 kernel: [4437064.011963] Call Trace: Dec 2 01:29:39 xenhost-rack1 kernel:

I am getting this message quite often lately. Centos 5.3, AMD dual core 5050e system x64 1 GIG ram, 4 GIG swap I dont have that much running that the kernel should be cutting out my processes. Any thoughts? Jerry ------------ emTotal: 766264 kB MemFree: 583984 kB Buffers: 9572 kB Cached: 31004 kB SwapCached: 36280 kB Active: 20240 kB Inactive:

Hello, I''m running into some trouble with what appear on the surface to be OOM issues in Dom0, but I''m not seeing any other evidence. This typically happens during periods of high I/O, and has occurred during RAID initial sync, and mkfs.ext4ing (as a test, no intention to keep ext4 on this array). I''ve found some older posts citing very similar circumstances, however

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>]

I was running a simple script and the system became unresponsive. I went to the console and couldn't get it to respond, so I had to POWER OFF! Ugh! (Note: this script, get-backup, ran fine on a CentOS 4.5 system) Looking through /var/log/messages, I see: Jan 23 12:52:14 DoyleBrunson kernel: ps invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 Jan 23 12:52:14 DoyleBrunson kernel:

On 08/31/2017 07:50 AM, PJ Welsh wrote: > A recently created and fully functional CentOS 7.3 VM fails to boot > after applying CR updates: <snip> > Server OS is CentOS 7.3 using Xen (no CR updates): > rpm -qa xen\* > xen-hypervisor-4.6.3-15.el7.x86_64 > xen-4.6.3-15.el7.x86_64 > xen-licenses-4.6.3-15.el7.x86_64 > xen-libs-4.6.3-15.el7.x86_64 >

I had the dom0 which unfortunately didn''t have a console on it hit a race condition and saw oom errors on it also. This happened after it was running for over 36 hours with a domU whose load average was avg was around 3 most of the time. changeset: 7396:9b51e7637676 Dom0 - UP i686, Centos 4.1, 768 megs domU-1 92 megs snmpd domU-2 92 megs snmpdd domU-3 410 megs postgres, tomcat 5.5,

Hi list, I have a very strange problem with my network. I have 2 internet connections: A - 1 Gbit, B - 100Mbps. Network layout: A, B | | [Brd1] / \ [L1] [L2] \ / [ GW1] ................... Clients ..................... Brd1 runs bgpd, and balances the traffic through L1 and L2. L1 and L2 do traffic shaping. GW1 does some packet

On 09/02/2017 08:11 AM, Johnny Hughes wrote: > On 09/01/2017 02:41 PM, Kevin Stange wrote: >> On 08/31/2017 07:50 AM, PJ Welsh wrote: >>> A recently created and fully functional CentOS 7.3 VM fails to boot >>> after applying CR updates: >> <snip> >>> Server OS is CentOS 7.3 using Xen (no CR updates): >>> rpm -qa xen\* >>>

Hi All, Running into temporary pauses in our VMs which correspond to these errors in dmesg on the dom0: [1721485.352560] SLUB: Unable to allocate memory on node -1 (gfp=0x20) [1721485.352563] cache: kmalloc-2048, object size: 2048, buffer size: 2048, default order: 3, min order: 0 [1721485.352566] node 0: slabs: 81, objs: 1296, free: 0 [1721485.352576] swapper: page allocation failure:

Hi all, Recently I build XEN 4.1 (from the xen.org) on centIOS 5.5 (kernel 2.6.38.4). After changing the grub file and rebooting the machine, I am continuously getting out of memory error. The content of my grub file: default=0 timeout=5 serial --unit=0 --speed=115200 terminal --timeout=10 console serial splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.38.4) root

On 09/04/2017 05:27 PM, Johnny Hughes wrote: > On 09/04/2017 03:59 PM, Kevin Stange wrote: >> On 09/02/2017 08:11 AM, Johnny Hughes wrote: >>> On 09/01/2017 02:41 PM, Kevin Stange wrote: >>>> On 08/31/2017 07:50 AM, PJ Welsh wrote: >>>>> A recently created and fully functional CentOS 7.3 VM fails to boot >>>>> after applying CR updates:

Hello All, Anyone have seen this before? Did samba_spnupdate really caused the crash??? [ 49.753564] block drbd1: drbd_sync_handshake: [ 49.753571] block drbd1: self BB16E125AF60AEDC:0000000000000000:30D97136FB1DA7A3:30D87136FB1DA7A3 bits:0 flags:0 [ 49.753576] block drbd1: peer 6365B5AFF049F16D:BB16E125AF60AEDD:30D97136FB1DA7A2:30D87136FB1DA7A3 bits:1 flags:0 [ 49.753580] block drbd1:

Hi all, Recently I build XEN 4.1 (from the xen.org) on centIOS 5.5 (kernel 2.6.38.4). After changing the grub file and rebooting the machine, I am continuously getting out of memory error. The content of my grub file: default=0 timeout=5 serial --unit=0 --speed=115200 terminal --timeout=10 console serial splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.38.4) root

Hi Konrad, In one of my domU''s to which I pci passthrough USB cards with a videograbber connected to it, the videocapture bails out after running for quite some time with the stacktrace below. I guess i''m interpreting the mem-info below wrong, but i fail to see why it can''t allocate those 185088 bytes. Could you shed some light ? it''s probably the coherent

We recently began seeing server crashes in our cluster related to "pop3-login", which is causing "oom-killer" to be invoked. The server only recovers after a reboot. From dovecot.conf: login_process_per_connection = yes login_processes_count = 16 login_max_processes_count = 256 (Should we try switching processes_per_connection to no?) From dovecot.log: dovecot: Apr 17