SUPPLEMENTAL: [Users] Cannot Allocate Memory after suspend / resume
Robert Heinzmann
Robert.Heinzmann at 1und1.de
Mon Jun 15 09:38:07 EDT 2009
One more,
this is reproducable ...
robert
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openvz.org
> [mailto:users-bounces at openvz.org] Im Auftrag von Robert Heinzmann
> Gesendet: Montag, 15. Juni 2009 15:12
> An: users at openvz.org
> Betreff: [Users] Cannot Allocate Memory after suspend / resume
>
> Hello,
>
> I'm trying to use the following mechanism to transparently
> move machines from one server to another.
>
> .. machine in /vz/ID/private and /vz/ID/root mounted as LVM LV
>
> 1) Suspend the machine (dumpfile /vz/ID/ID.dump)
> 2) Umount Filesystem (/vz/ID)
> 3) Create DRBD Device of /vz/ID (external Meta Data)
> 4) Start and mount the DRBD (/vz/ID)
> 5) resume the Machine
>
> .. Wait for sync to finish
> ... Other actions
>
> After resume, the machine has this in the logs:
>
> Jun 15 14:27:01 test4 CRON[2268]: PAM unable to
> dlopen(/lib/security/pam_unix.so)
> Jun 15 14:27:01 test4 CRON[2268]: PAM [dlerror:
> /lib/security/pam_unix.so: failed to map segment from shared object:
> Cannot allocate memory]
> Jun 15 14:27:01 test4 CRON[2268]: PAM adding faulty module:
> /lib/security/pam_unix.so
> Jun 15 14:27:01 test4 CRON[2268]: PAM unable to
> dlopen(/lib/security/pam_env.so)
> Jun 15 14:27:01 test4 CRON[2268]: PAM [dlerror:
> /lib/security/pam_env.so: failed to map segment from shared object:
> Cannot allocate memory]
> Jun 15 14:27:01 test4 CRON[2268]: PAM adding faulty module:
> /lib/security/pam_env.so
> Jun 15 14:27:01 test4 CRON[2268]: PAM unable to
> dlopen(/lib/security/pam_limits.so)
> Jun 15 14:27:01 test4 CRON[2268]: PAM [dlerror:
> /lib/security/pam_limits.so: failed to map segment from shared object:
> Cannot allocate memory]
> Jun 15 14:27:01 test4 CRON[2268]: PAM adding faulty module:
> /lib/security/pam_limits.so
> Jun 15 14:27:01 test4 CRON[2270]: PAM unable to
> dlopen(/lib/security/pam_unix.so)
>
> But no beancounters are hit:
>
> test4:/# cat /proc/user_beancounters
> Version: 2.5
> uid resource held maxheld
> barrier limit failcnt
> 36: kmemsize 3243909 5416555
> 84172801 100000000 0
> lockedpages 0 0
> 8182 8182 0
> privvmpages 84088 91852
> 512000 640000 0
> shmpages 13 14
> 256000 256000 0
> dummy 0 0
> 0 0 0
> numproc 35 61
> 1000 1000 0
> physpages 8127 13348
> 0 9223372036854775807 0
> vmguarpages 0 0
> 512000 9223372036854775807 0
> oomguarpages 8127 13348
> 512000 9223372036854775807 0
> numtcpsock 13 15
> 1200 1200 0
> numflock 5 10
> 1000 1000 0
> numpty 2 2
> 8 8 0
> numsiginfo 0 2
> 1024 1024 0
> tcpsndbuf 247992 247992
> 12000000 24000000 0
> tcprcvbuf 212992 0
> 12000000 24000000 0
> othersockbuf 13872 61592
> 6000000 12000000 0
> dgramrcvbuf 0 2576
> 512000 512000 0
> numothersock 21 45
> 1200 1200 0
> dcachesize 142728 253530
> 12000000 24000000 0
> numfile 672 1144
> 20000 20000 0
> dummy 0 0
> 0 0 0
> dummy 0 0
> 0 0 0
> dummy 0 0
> 0 0 0
> numiptent 1245 1245
> 2000 2000 0
>
>
> This is a strange behaviour.
>
> Operating System:
> Host : Debian Lenny 64 Bit
> Guest/ VE : Debian Etch 32 Bit
>
> Host:
>
> HOST:~/deploy# dpkg -l | grep -e openvz -e vzctl
> ii drbd8-module-2.6.26-2-openvz-amd64
> 2:8.3.1-0+2.6.26-15lenny2
> RAID 1 over tcp/ip for Linux kernel module
> ii libopenvz-bc-perl 0.02-1
> Perl access to OpenVZ Beancounter Data
> ii linux-headers-2.6-openvz-amd64 2.6.26+17+lenny1
> Header files for Linux 2.6-openvz-amd64
> ii linux-headers-2.6.26-2-common-openvz 2.6.26-15lenny3
> Common header files for Linux 2.6.26-2-openv
> ii linux-headers-2.6.26-2-openvz-amd64 2.6.26-15lenny3
> Header files for Linux 2.6.26-2-openvz-amd64
> ii linux-image-2.6-openvz-amd64 2.6.26+17+lenny1
> Linux 2.6 image on AMD64, OpenVZ support
> ii linux-image-2.6.26-2-openvz-amd64 2.6.26-15lenny3
> Linux 2.6.26 image on AMD64, OpenVZ support ...
> ii vzctl 3.0.22-14
> server virtualization solution - control too
> ii vzquota 3.0.11-1
> server virtualization solution - quota tools
>
> How can I debug ?
>
> Does the suspend also contain file handle information ?
>
> Is it possible to move a machine in suspended state to a
> different location ?
>
> Any hints appreshiated ....
>
> Regards,
> Robert
>
> ---
> Robert Heinzmann
>
>
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