Hi Chandra ,
I was debugging the problem.
I could not pin point the problem.
When i carry out following steps and wait for
3-4 minutes , system enters kdb
automatically
1. insert rcfs , rbce , ckrm_numtasks ,
ckrm_listenaq modules.
2. mount rcfs.
3. create /rcfs/taskclass/c1
4. echo
"tag=mytag,class=/rcfs/taskclass/c1">/rcfs/ce/rules/r1
This is some info.
Kdb>
EIP is at create_private_data + 0x154/0x1d0
eip=0xd0cba124
Call Trace:
rbce_tc_classify
cb_taskclass_fork
ckrm_invoke_event_cb_chain
recalc_sigpending
sigprocmask
sys_clone
sysenter_past_esp
kdb>id 0xd0cba124
0xd0cba124 create_private_data+0x154:
repnz scas %es: (%edi,%al)
not %ecx
dec %ecx
thanks,
--kiran
--- mehta kiran <[EMAIL PROTECTED]> wrote:
> Hi Chandra ,
> I tried uncommenting the code from the function
> u specified.
>
> But machine stops responding.
> Sometimes it stop responding when i cat members
> of affected class , sometimes when i start
> different shell etc.
>
> This happened aroung 5-6 times.
> I will try to debug it .
> thanks,
> --kiran
>
>
> --- Chandra Seetharaman <[EMAIL PROTECTED]> wrote:
>
> > On Wed, Feb 23, 2005 at 04:47:58AM -0800, mehta
> > kiran wrote:
> >
> > Kiran,
> >
> > As I said in my earlier mail, tag is there and it
> is
> > usable currently.
> > It is just not inherited... The code is already
> > there, but commented out.
> > I am trying to remember if there was any problem
> > with that feature.
> >
> > You can try it by uncommenting the code that
> copies
> > the app_tag in
> > rbcemod.c:create_private_data(), and run some
> tests.
> >
> > chandra
> >
> > > Hi Chandra ,
> > > Thanks.
> > > but i have a small query which remains
> > > unanswered.
> > > I went through resource management on
> > > other operating systems.SRM
> > > (Solaris resource Manager) , PRM(Process
> > > Resource Manager on HP) have entity
> called
> > as
> > > projectid (same as application tag on
> > linux)
> > > which is being used by many application
> > >
> > >
> > > This feature may be very important users
> > > perspective.
> > > Are you planning to enable application
> tag
> > > on linux in near future ?
> > >
> > > Please let me know.
> > >
> > > thanks,
> > > --kiran
> > >
> > > --- Chandra Seetharaman <[EMAIL PROTECTED]>
> > wrote:
> > >
> > > > On Mon, Feb 21, 2005 at 08:37:14PM -0800,
> mehta
> > > > kiran wrote:
> > > > > Hi Chandra ,
> > > > > Your reply was definitely helpful.
> > > > > 1.From your reply what i concluded is
> that
> > > > > *if* after fork child belongs to the
> same
> > > > class
> > > > > as parent(in accordance with CE rules)
> ,
> > then
> > > > > both parent and child will respect
> > attribute
> > > > > values(ex: amount of cpu or mem pages).
> > > > yes.
> > > >
> > > > > 2.But is there any way to specify a rule
> ,
> > so
> > > > > that all the descendents of a process
> > belong
> > > > > to same class.
> > > >
> > > > Inheriting tags would provide this
> > functionality.
> > > > Currently, it is
> > > > disabled.. I don't exactly remember why we
> > disabled
> > > > it. will try to
> > > > remember.
> > > >
> > > > > 3.From other mails on this mailing list
> ,
> > I
> > > > > inferred that tag(application tag)
> cannot
> > be
> > > > > used for this purpose.
> > > > > 4.I can not find any info on "tag".
> > > > > If i start a new process what will be
> its
> > > > > tag.Is it inherited by child?
> > > >
> > > > Tag gets associated with a process only when
> you
> > > > write the "pid tag" to the
> > > > rbce_tag file. currently it is not inherited,
> so
> > > > there is no tag for a
> > > > process at fork.
> > > > Also, tags come into picture only if you have
> > RBCE.
> > > >
> > > > >
> > > > > Example:
> > > > >
> > > > > I have bash running. If i do
> > > > > # su - abc
> > > > > then new process created goes
> in
> > > > > a different class.
> > > > > I could not find any rule which can
> hold
> > both
> > > > > parent and child in same class if child
> > pid,
> > > > > child gid change.(child is diffrent
> > command
> > > > then
> > > > > parent nad hence cmd and args will not
> > always
> > > >
> > > > > prove useful)
> > > > >
> > > > > 5. If whatever i told above is not
> wrong,
> > > > > any plans to provide such a
> facility?
> >
> > > > >
> > > > > thanks & regards,
> > > > > --kiran
> > > > >
> > > > >
> > > > > --- Chandra Seetharaman
> <[EMAIL PROTECTED]>
> > > > wrote:
> > > > >
> > > > > > On Mon, Feb 21, 2005 at 02:12:10AM -0800,
> > mehta
> > > > > > kiran wrote:
> > > > > > > Hi ,
> > > > > > > If CKRM is being used , is it
> always
> > > > > > guaranteed
> > > > > > > that child inherits parents attribute
> > values.
> > > > > >
> > > > > > In the absence of CE, at fork(), parent's
> > class
> > > > _is_
> > > > > > inherited
> > > > > > by the child.
> > > > > >
> > > > > > If you have a CE, then the CE determines
> > where
> > > > the
> > > > > > new task ends, CE
> > > > > > could decide the classification at fork(),
> > > > exec() or
> > > > > > any other kernel
> > > > > > classification points. For example, in
> RBCE
> > if
> > > > you
> > > > > > have a rule
> > > > > >
> > "cmd=sleep,class=/rcfs/taskclass/sleep_class",
> > > > and
> > > > > > bash belongs to
> > > > > > /rcfs/taskclass, then when sleep is
> invoked
> > from
> > > > > > bask, at fork(), the new
> > > > > > task will belong to /rcfs/taskclass, and
> > after
> > > > exec
> > > > > > it will be moved to
> > > > > > /rcfs/taskclass/sleep_class.
> > > > > >
> > > > > >
> > > > > > > Ex: parent uses 10% of cpu then will
> child
>
=== message truncated ===
__________________________________
Do you Yahoo!?
Yahoo! Mail - 250MB free storage. Do more. Manage less.
http://info.mail.yahoo.com/mail_250
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
ckrm-tech mailing list
https://lists.sourceforge.net/lists/listinfo/ckrm-tech
