[Debian] Re: Bug#606526: "vzctl start --wait" waits forever
Ola Lundqvist
opal at debian.org
Sat Dec 11 17:06:45 EST 2010
forwarded 606526 http://bugzilla.openvz.org/show_bug.cgi?id=1717
thanks
Hi Daniel
Thanks for the information. I have forwarded this bug upstream
to see what they think about it.
I suspect that this wait command do not work with the new
init system. With the new init system the services are started
in parallell and due to that it may be so that this --wait command
no longer work due to that it do not know when the default
runlevel has been reached.
But I'll let the upstream team to determine that.
Best regards,
// Ola
On Thu, Dec 09, 2010 at 11:43:25PM +0100, Daniel Hahler wrote:
> Package: vzctl
> Version: 3.0.24-10
> Severity: normal
>
> "vzctl start $ID --wait" does not work for some time now:
>
> # vzctl start 205 --wait
> Starting container ...
> Container is mounted
> Adding IP address(es): 10.122.2.5
> Setting CPU units: 1000
> Setting CPUs: 1
> Set hostname: foo.example.com
> File resolv.conf was modified
> Container start in progress, waiting ...
> ^Z
> [1] + 29226 suspended vzctl start 205 --wait
> root at HN { ~ } [Debian squeeze/sid] [es:20][jobs:1s]
> # fg
> [1] + 29226 continued vzctl start 205 --wait
> Error in waitpid(3): No child processes
> Container wait failed
> Stopping container ...
> Container was stopped
> Container is unmounted
>
>
> Suspending the job and resuming it instantly again used to work
> around this (that is where I am using Ctrl-Z/^Z above).
>
> It did not help in this case.
>
> Starting the container normally works:
>
> # vzctl start 205
> Starting container ...
> Container is mounted
> Adding IP address(es): 10.122.2.5
> Setting CPU units: 1000
> Setting CPUs: 1
> Set hostname: foo.example.com
> File resolv.conf was modified
> Container start in progress...
> root at HN { ~ } [Debian squeeze/sid] !10014 23:26:20
> # vzctl enter 205
> entered into CT 205
> root at foo:/# ps aux
> USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
> root 1 0.1 0.0 2028 712 ? Ss 23:26 0:00 init [2]
> root 237 0.2 0.0 27188 1304 ? Sl 23:26 0:00 /usr/sbin/rsyslogd -c4
> root 311 0.0 0.0 4364 936 ? Ss 23:26 0:00 /usr/sbin/cron
> root 368 0.1 0.1 7148 5416 ? Ss 23:26 0:00 /usr/sbin/munin-node
> root 668 0.0 0.0 18624 624 ? Ss 23:26 0:00 vzctl: pts/0
> root 669 4.0 0.0 4504 3184 pts/0 Ss 23:26 0:00 -bash
> root 683 0.0 0.0 2348 928 pts/0 R+ 23:26 0:00 ps aux
> root at foo:/#
>
>
> I've tried debugging this using "strace", but it messed up the startup process
> even more (when using "-f" IIRC), without "-f" it looks like this:
>
> --- SIGCHLD (Child exited) @ 0 (0) ---
> rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER, 0x7f658ed581e0}, NULL, 8) = 0
> stat("/usr/sbin/vzquota", {st_mode=S_IFREG|0755, st_size=58248, ...}) = 0
> rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], SA_RESTORER, 0x7f658ed581e0}, 8) = 0
> rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER|SA_NOCLDSTOP, 0x7f658ed581e0}, NULL, 8) = 0
> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f658f8c89d0) = 1654
> wait4(1654, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 1654
> --- SIGCHLD (Child exited) @ 0 (0) ---
> rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER, 0x7f658ed581e0}, NULL, 8) = 0
> stat("/etc/vz/conf/205.start", 0x7fff0186cd00) = -1 ENOENT (No such file or directory)
> close(8) = 0
> read(9, "", 4) = 0
> write(1, "Container start in progress, wai"..., 41Container start in progress, waiting ...
> ) = 41
> stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2309, ...}) = 0
> write(3, "2010-12-09T23:36:56+0100 vzctl :"..., 83) = 83
> ioctl(4, 0x400c2e05, 0x7fff0186cd10) = 0
> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f658f8c89d0) = 1655
> wait4(1655,
>
>
> I would be glad to provide any additional info, especially if it is not
> reproducible for you.
>
> I have just tried it on another container, which is build just upon a minimal
> debootstrap template, and it hangs in the same way.
>
> My kernel is the Debian kernel, with customized config.
>
>
> -- System Information:
> Debian Release: squeeze/sid
> APT prefers testing
> APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 2.6.32-5+blueyed.1-openvz-amd64 (SMP w/8 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
>
> Versions of packages vzctl depends on:
> ii iproute 20100519-3 networking and traffic control too
> ii libc6 2.11.2-7 Embedded GNU C Library: Shared lib
> ii vzquota 3.0.12-3 server virtualization solution - q
>
> Versions of packages vzctl recommends:
> ii rsync 3.0.7-2 fast remote file copy program (lik
>
> vzctl suggests no packages.
>
> -- Configuration Files:
> /etc/bash_completion.d/vzctl.sh changed:
> -- irrelevant --
>
> /etc/init.d/vz changed:
> -- should be just this: --
> ip addr add 10.122.1.1/32 dev $VZDEV
>
> /etc/vz/conf/ve-vps.basic.conf-sample changed:
> -- irrelevant --
>
> /etc/vz/vz.conf changed:
> VIRTUOZZO=yes
> LOCKDIR=/var/lib/vz/lock
> DUMPDIR=/var/lib/vz/dump
> VE0CPUUNITS=10000
> LOGGING=yes
> LOGFILE=/var/log/vzctl.log
> LOG_LEVEL=0
> VERBOSE=0
> DISK_QUOTA=yes
> VZFASTBOOT=no
> NEIGHBOUR_DEVS=detect
> ERROR_ON_ARPFAIL="no"
> TEMPLATE=/var/lib/vz/template
> VE_ROOT=/var/lib/vz/root/$VEID
> VE_PRIVATE=/var/lib/vz/private/$VEID
> CONFIGFILE="basic"
> DEF_OSTEMPLATE="debian-testing-minimal_6.0_i386"
> VZWDOG="no"
> IPTABLES="ipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length"
> IPV6="no"
> IP6TABLES="ip6_tables ip6table_filter ip6table_mangle ip6t_REJECT"
>
>
> -- no debconf information
>
>
>
--
--------------------- Ola Lundqvist ---------------------------
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| ola at inguza.com 654 65 KARLSTAD |
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