--- Day changed

--- Log opened Wed Oct 04 23:59:01 2006
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10:32 < jdike> Hi guys
10:38 -!- mauricefah [~mauricefa@adsl-84-227-132-195.adslplus.ch] has joined #uml
10:38 < mauricefah> hi
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10:39 < mauricefah> I'm trying to design a role based authentication and authorization structure with uml 
10:39 < mauricefah> so I have abstract classes: user, role, permission
10:40 < mauricefah> client and member inherit from user
10:41 < mauricefah> and I have client and member inheriting from role
10:42 < mauricefah> my question: is it the user or the role which will have an account...?
10:44 < mauricefah> ahem... is anybody here?
10:44 < jdike> check out one of the URLs in /topic
10:45 < mauricefah> jdike: I'm not sure I understand?
10:45 < jdike> wrong UML
10:45 < mauricefah> aha :) I see
10:45 < mauricefah> do you know of a unified modelling language channel?
10:46 < jdike> nope, sorry
10:46 < mauricefah> OK Thanks!
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11:29 < dgraves> YOOOOO!!!!
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14:33 < the_hydra> jdike: jeff, you are around?
14:36 < baroni> Hi all. How to deal with the error PROT_EXEC mmap in /dev/shm/ ?
14:36 < the_hydra> hi baroni
14:37 < the_hydra> that happens inside UML?
14:38 < baroni> hi the_hydra . When I try to start the uml kernel with the root_fs it gives this error:  ./linux ubda=root_fs/ mem=128M
14:38 < baroni> Checking that ptrace can change system call numbers...OK
14:38 < baroni> Checking syscall emulation patch for ptrace...OK
14:38 < baroni> Checking advanced syscall emulation patch for ptrace...OK
14:38 < baroni> Checking for tmpfs mount on /dev/shm...OK
14:38 < baroni> Checking PROT_EXEC mmap in /dev/shm/...failed: Operation not permitted
14:38 < baroni> /dev/shm/ must be not mounted noexec
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14:39 < the_hydra> hm
14:39 < the_hydra> jeff might have a good reason to set PROT_EXEC in /dev/shm
14:40 < caker> baroni: remove noexec from the /dev/shm line in fstab, perhaps?
14:40 < the_hydra> perhaps since it could contain executable pages, as UML "RAM" is stored there
14:40 < caker> the_hydra: ya
14:40 < the_hydra> hi caker
14:40 < baroni> there is a very long discussion thread on that: http://www.archivesat.com/Linux_kernel_discussion/thread1689237.htm ..
14:40 < caker> baroni: or set TPMDIR entironment var to a tmpfs mount elsewhere and boot UML with that env var set
14:41 < baroni> caker: my fstab doesn't have a /dev/shm  .. neither /dev
14:41 < baroni> caker: I'll try 
14:42 < caker> baroni: you sure?  grep shm /etc/fstab
14:42 < caker> none                    /dev/shm                tmpfs   defaults        0 0
14:43 < baroni> no, there isn't. should I add it?
14:44 < the_hydra> if you don't mind..then yes
14:44 < the_hydra> you have security concern?
14:49 < baroni> i'm trying a tmpfs first ..
14:52 < the_hydra> caker: you met blaisorblade lately?
14:53 < caker> the_hydra: I haven't seen him online for a while
14:53 < the_hydra> caker: hmmm ok
15:01 < baroni> that worked, thanks caker, the_hydra . But now, the uml kernel is falling on opening the filesystem : Failed to open 'root_fs/', errno = 21
15:02 < baroni> i got it by debootstrap. Is there some trick to the filesystem?
15:02 < caker> !errno 21
15:02 < linbot> caker: EISDIR (#21): Is a directory
15:02 < caker> :)
15:02 < the_hydra> root_fs ;)
15:02 < the_hydra> no trailing slash ;)
15:03 < baroni> what should it be ?
15:03 < baroni> oh
15:03 < baroni> Failed to open 'root_fs', errno = 21 , the same
15:04 < the_hydra> no roofts ;)
15:04 < the_hydra> check the name of your root filesystem
15:04 < the_hydra> is it root_fs?
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15:05 < baroni> yeah, I named the root directory of the filesystem as 'root_fs'
15:05 < the_hydra> is it readable by the uid of your UML linux kernel?
15:05 < baroni> I've chmod 777 root_fs/
15:06 < the_hydra> pay attention, it must be a file :)
15:06 < the_hydra> not directory
15:07 < baroni> uhm.. 
15:17 < baroni> what is the file format expected of the file system ?
15:20 < the_hydra> well, it's a raw file containing normal filesystem (such as ext2) inside it
15:21 < baroni> ok .. I'm trying to generate such one
15:22 < the_hydra> save yourself, use prebuilt one....uml.harlowill.com maybe?
15:28 < baroni> thanks the_hydra 
15:29 < baroni> I'm trying generate one.. if I get some error I'll get that one
15:29 < the_hydra> ok
15:29 < the_hydra> what distro you currently use anyway?
15:29 < baroni> debian 
15:31 < the_hydra> IIRC you can use debootstrap to generate one...CMIIW
15:31 < baroni> yeah, i did that :-)
15:31 < the_hydra> good luck
15:32 < baroni> now I'm creating a file system in a file, mounting it as loopback and coping the files got by debootstrap to there..
15:32 < baroni> done, let's see
15:34 < baroni> worked!
15:34 < baroni> :D
15:34 < the_hydra> cheers!
15:34 < baroni> thanks the_hydra , caker :-)
15:34 < the_hydra> cheers!
15:34 < the_hydra> :)
15:35 < baroni> uff... it's so good to fix problems and see things working :)
15:35 < baroni> :-)
15:35 < the_hydra> of course
15:35 < the_hydra> and it's our pleasure to help :)
15:36 < baroni> help is a light .. thanks for clarify me:-
15:36 < baroni> :)
15:37 < the_hydra> :)
15:37 < the_hydra> anyway, I am Mulyadi
15:39 < baroni> nice :-), i'm rodrigo baroni :-) 
15:40 < the_hydra> nice to meet you :)
15:41 < baroni> you too :-)
15:54 < baroni> it is freezing when executing cron and atd and now inetd .. some idea about why?
15:56 < the_hydra> could be anything
15:56 < the_hydra> could you hook gdb to UML and see the backtrace?
15:58 < baroni> ops, it not frozed, but a little slow.. but stoped at: INIT: Id "1" respawning too fast: disabled for 5 minutes
15:58 < baroni> and that to Id "2" , 3, 4, and 5
15:58 < baroni> I'll try
15:58 < jdike> well, now you look at the device names in inittab and fix them
15:59 < the_hydra> bright!
16:00 < baroni> uhm.. you mean tty{1-6} to other device?
16:00 < jdike> whatever's there has to exist in /dev
16:01 < baroni> thanks
16:01 < baroni> what should be?
16:01 < jdike> device names
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17:52 < caker> jdike: want me to report my skas problem to BB, or is something already in the works?
17:52 < jdike> report it
17:52 < caker> gotcha
17:52 < jdike> I don't know that he knows about it
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--- Log closed Thu Oct 05 23:59:00 2006