From: Dimitri Roschkowski (dr_at_port29.net)
Date: Mon 07 Jun 2004 - 05:20:24 BST
Hi,
my last Mail was about the crash of the master server by a high load,
that cause by some vserver. Yesterday I found a realy strange thing,
which happend one minute befor the master server crashed:
11:17:01 up 1 day, 22 min, 0 users, load average: 3.17, 2.57, 2.37
USER TTY LOGIN@ IDLE JCPU PCPU WHAT
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME DESCRIPTION
0 34 117MB 3kB 2h04m27 28m36.45 1d12h22 root server
49163 36 1GB 13kB m08.32 m02.97 1d12h19 v12
49166 54 2GB 52kB 4m56.48 4m33.37 1d12h19 v15
49169 15 39MB 3kB 2m29.66 1m22.73 1d12h18 v18
49170 12 158MB 2kB m49.51 m11.68 1d12h18 v19
49174 41 647MB 21kB 5m19.56 1m02.99 11h16m34 v10
49175 33 489MB 20kB 3m29.60 m40.07 6h59m42 v01
49176 40 555MB 24kB 3m26.92 m41.36 6h59m22 v02
49177 33 484MB 19kB 3m21.93 m37.78 6h58m54 v03
49178 33 484MB 18kB 3m19.57 m38.10 6h58m33 v04
49179 46 795MB 50kB 5m29.05 1m48.18 6h58m20 v05
49180 39 504MB 20kB 3m10.16 m56.96 6h58m08 v06
49181 38 506MB 20kB 3m16.94 m38.14 6h57m48 v07
49182 33 483MB 18kB 3m18.24 m38.33 6h57m36 v08
49183 31 474MB 17kB 3m18.96 m37.63 6h57m24 v09
49184 19 111MB 3kB m02.93 m00.50 6h57m24
49185 23 179MB 6kB m03.54 m00.79 6h57m07
49186 29 429MB 13kB 2m15.02 m28.12 6h57m07 v11
49187 29 427MB 12kB m01.51 m00.80 6h56m55
49188 23 140MB 4kB 1m24.48 m25.44 6h56m54 v13
49189 27 455MB 16kB 2m13.71 m29.22 6h56m35 v14
49191 32 475MB 17kB 2m14.63 m27.78 6h56m16 v16
49192 26 154MB 6kB 2m11.79 m28.77 6h56m10
49194 26 454MB 14kB m03.47 m01.16 6h55m55 v20
As you can see, there are 24 vservers running (of 20 vservers). Whats
the Problem? This happend one minute before the master server (suse 9.0
with 2.4.25 and vs1.26) crashed.
Another thing I noticed about SuSE vservers running on a SuSE master
server, that the vserver can take over the local terminal, if this lines
are enabled in the /etc/inittab of a vserver:
1:2345:respawn:/sbin/mingetty --noclear tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6
Thats my config file:
IPROOT="eth0:xxxxxxxxxxxx"
IPROOTDEV="eth0"
ONBOOT=yes
S_HOSTNAME=xxxxxxxxxxxxx
S_DOMAINNAME="xxxxxxxxxxxxx"
S_NICE=
ULIMIT="-HS -u 80"
S_CAPS="CAP_NET_RAW"
S_FLAGS="lock nproc fakeinit"
How can I prevent it?
Cheers
Dimitri
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