Re: Signal 11 messages showing in all jails?

2008-05-19 Thread Alexander Leidinger
Quoting Andrew Snow <[EMAIL PROTECTED]> (from Mon, 19 May 2008  
21:08:38 +1000):




Sorry for previous message, it wasn't devfs rules at all that solved  
this problem.


The rules you posted are part of some kind of workaround. The rules  
didn't include the "syslog pipe" for kernel messages (depends upon  
your version of FreeBSD), so there should be no messages from the  
kernel (like sig 11) in the syslog anymore with this.



Instead you should set this in /etc/sysctl.conf:

  security.bsd.unprivileged_read_msgbuf=0


This also has implication for the jail-host. You need to be root to  
read the dmesg.


All this is just a workaround, but not really a solution to the  
problem. Ideally each jail gets messages from the kernel which  
_belong_ into this jail (e.g. sig 11, if a process from _this_ jail  
dies in this way).


Bye,
Alexander.

--
Pure drivel tends to drive ordinary
drivel off the TV screen.

http://www.Leidinger.netAlexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org   netchild @ FreeBSD.org  : PGP ID = 72077137
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Re: Signal 11 messages showing in all jails?

2008-05-19 Thread Andrew Snow


Sorry for previous message, it wasn't devfs rules at all that solved 
this problem.


Instead you should set this in /etc/sysctl.conf:

  security.bsd.unprivileged_read_msgbuf=0






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Current problem reports assigned to freebsd-jail@FreeBSD.org

2008-05-19 Thread FreeBSD bugmaster
Current FreeBSD problem reports
Critical problems
Serious problems

S Tracker  Resp.  Description

s kern/89528   jail   [jail] [patch] impossible to kill a jail
o kern/119842  jail   [smbfs] [jail] "Bad address" with smbfs inside a jail

2 problems total.

Non-critical problems

S Tracker  Resp.  Description

o bin/32828jail   [jail] w(1) incorrectly handles stale utmp slots with 
o kern/68192   jail   [quotas] [jail] Cannot use quotas on jailed systems
o kern/72498   jail   [libc] [jail] timestamp code on jailed SMP machine gen
o kern/74314   jail   [resolver] [jail] DNS resolver broken under certain ja
o kern/84215   jail   [jail] [patch] wildcard ip (INADDR_ANY) should not bin
o kern/89989   jail   [jail] [patch] Add option -I (ASCII 73) PID  to specif
o kern/97071   jail   [jail] [patch] add security.jail.jid sysctl
o bin/99566jail   [jail] [patch] fstat(1) according to specified jid
o bin/119305   jail   [jail] [patch] jexec(8): jexec -n prisonname: selectio
o kern/120753  jail   [jail] Zombie jails (jailed child process exits while 

10 problems total.

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Re: Signal 11 messages showing in all jails?

2008-05-19 Thread Andrew Snow


Here are the devfs rules I use, which is one workaround for the problem 
(among other things..)


 "hide",
  "path null unhide",
  "path zero unhide",
  "path crypto unhide",
  "path random unhide",
  "path urandom unhide",
  "path 'ptyp*' unhide",
  "path 'ptyq*' unhide",
  "path 'ptyr*' unhide",
  "path 'ptys*' unhide",
  "path 'ptyP*' unhide",
  "path 'ptyQ*' unhide",
  "path 'ptyR*' unhide",
  "path 'ptyS*' unhide",
  "path 'ttyp*' unhide",
  "path 'ttyq*' unhide",
  "path 'ttyr*' unhide",
  "path 'ttys*' unhide",
  "path 'ttyP*' unhide",
  "path 'ttyQ*' unhide",
  "path 'ttyR*' unhide",
  "path 'ttyS*' unhide",
  "path fd unhide",
  "path 'fd/*' unhide",
  "path stdin unhide",
  "path stdout unhide",
  "path stderr unhide"

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Re: Signal 11 messages showing in all jails?

2008-05-19 Thread Alexander Leidinger
Quoting Scott Lambert <[EMAIL PROTECTED]> (from Mon, 19 May 2008  
00:17:07 -0500):



Is this supposed to happen?  FreeBSD 6.2

order.cgi is only installed in one jail on this system, but I see
this report in all the jail on that system.  The below lines are from
the daily security run output for one of the other jails.

I just want to make sure this is operating as expected rather than a
bug.


It's not only the signal 11 messages, it's all kernel messages.  
There's no jail filter for the kernel messages, so this is expected  
behavior (this doesn't mean this behavior is the right one).


Bye,
Alexander.

--
Most people need some of their problems
to help take their mind off some of the others.

http://www.Leidinger.netAlexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org   netchild @ FreeBSD.org  : PGP ID = 72077137
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