Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

[anil dahiya]

Hello 
I am creating kernel thread on fedora core 4
(2.6.9-1.667)and my getting oops something like

 Badness in sleep_on_timeout at kernel/sched.c:3022
 [<02302bc3>] sleep_on_timeout+0x5d/0x23a
 [<0211b919>] default_wake_function+0x0/0xc

can any suggest how i can avoid this oops.
Regards,
Anil 

--- anil dahiya <ak_ait@yahoo.com> wrote:

> Hi Sam
> Thanks fop your help ..but my problem is not solved
> it
> ...i putting my real problem here below.
> 
> 1>my fist need is to make  module1.ko made using
> a1/a1.c , a1/a11.c & a2/a2.c a2/a22.c and all .c
> file
> use /home/include/a.h 
> 
>  
> 2>Now my 2nd need is to make module2.ko using
> module1.ko and b/b1.c & b/b11.c (these both .c files
> use /home/include/a.h and /home/module2/include/b.h)
> 
> 
> In short my directory  structure is as:
>   
> /home/------
>               |_ include _
>               |           |
>               |           a.h 
>               | 
>               |___module1_
>               |           |__ a1 ____________
>               |           |          |       |
>               |           |         a1.c   a11.c
>               |           |
>                           |__ a2 ___________
>               |           |           |     |
>               |           |         a2.c   a22.c
>               |
>               |___ moudule2_
>               |             |             
>               |             |__include _
>               |             |           |
>               |             |           b.h 
>               |             |___b1________
>               |                     |     |
>               |                   b1.c   b11.c
>          
>                                     
> Looking forward for ur reply 
> thanks in advance
>  ---- Anil 
> 
> 
> --- anil dahiya <ak_ait@yahoo.com> wrote:
> 
> > hello 
> > I want to make kernel module dummy.ko using
> multiple
> > .c and .h files. In short i am telling .c and .h
> > files
> > with directory structure
> > 
> > 1> dummy.ko should made be using module1.ko and
> > module2.o (i.e 
> >    module2.o uses module1.ko to make dummy.ko)
> > 
> > 2> module1.ko made using a1/a1.c & a2/a2.c and 
> both
> > .c file   
> >    use /home/include/a.h 
> > 3> module2.o should made using b/b1.c which use   
> >    use /home/module2/include/b.h 
> > 
> > Suggest me tht should make i make module2.o or
> > module2.ko and then combine it with module1.o to
> > make
> > dummy.ko 
> > 
> > 
> > /home/------
> >              |_ include _
> >              |           |
> >              |           a.h 
> >              | 
> >              |___module1_
> >              |           |__ a1 ____
> >              |           |          | 
> >              |           |         a1.c 
> >              |           |
> >                          |__ a2 ____
> >              |           |           | 
> >              |           |         a2.c 
> >              |
> >              |___ moudule2_
> >              |             |             
> >              |             |__include _
> >              |             |           |
> >              |             |           b.h 
> >              |             |___b1__
> >              |                     | 
> >              |                   b1.c 
> >         
> >                                    
> > Looking forward for ur reply 
> > thanks in advance
> > ---- Anil 
> > 
> > 
> > 		
> > __________________________________________ 
> > Yahoo! DSL – Something to write home about. 
> > Just $16.99/mo. or less. 
> > dsl.yahoo.com 
> > 
> > 
> > --
> > Kernelnewbies: Help each other learn about the
> Linux
> > kernel.
> > Archive:      
> > http://mail.nl.linux.org/kernelnewbies/
> > FAQ:           http://kernelnewbies.org/faq/
> > 
> > 
> 
> 
> 
> 		
> __________________________________________ 
> Yahoo! DSL – Something to write home about. 
> Just $16.99/mo. or less. 
> dsl.yahoo.com 
> 
> 


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Re: Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

[David Woodhouse]

On Tue, 2006-02-07 at 12:00 -0800, anil dahiya wrote:
>  Badness in sleep_on_timeout at kernel/sched.c:3022
>  [<02302bc3>] sleep_on_timeout+0x5d/0x23a
>  [<0211b919>] default_wake_function+0x0/0xc
> 
> can any suggest how i can avoid this oops.

Stop using sleep_on_timeout(). It's almost certainly buggy.

-- 
dwmw2

Re: Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

[anil dahiya]

then which function i should use...beacause same
problem is with interruptible_sleep_on
thanks & Regards,
anil

--- David Woodhouse <dwmw2@infradead.org> wrote:

> On Tue, 2006-02-07 at 12:00 -0800, anil dahiya
> wrote:
> >  Badness in sleep_on_timeout at
> kernel/sched.c:3022
> >  [<02302bc3>] sleep_on_timeout+0x5d/0x23a
> >  [<0211b919>] default_wake_function+0x0/0xc
> > 
> > can any suggest how i can avoid this oops.
> 
> Stop using sleep_on_timeout(). It's almost certainly
> buggy.
> 
> -- 
> dwmw2
> 
> 
> --
> Kernelnewbies: Help each other learn about the Linux
> kernel.
> Archive:      
> http://mail.nl.linux.org/kernelnewbies/
> FAQ:           http://kernelnewbies.org/faq/
> 
> 


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Re: Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

[Gaurav Dhiman]

On 2/8/06, anil dahiya <ak_ait@yahoo.com> wrote:
> then which function i should use...beacause same
> problem is with interruptible_sleep_on

prefer to use wait_event_timeout() ; see its code in kernel.
Its written fro handling race conditions, which might occur in
interruptible_sleep_on() or other such functions.

-Gaurav

> thanks & Regards,
> anil
>
> --- David Woodhouse <dwmw2@infradead.org> wrote:
>
> > On Tue, 2006-02-07 at 12:00 -0800, anil dahiya
> > wrote:
> > >  Badness in sleep_on_timeout at
> > kernel/sched.c:3022
> > >  [<02302bc3>] sleep_on_timeout+0x5d/0x23a
> > >  [<0211b919>] default_wake_function+0x0/0xc
> > >
> > > can any suggest how i can avoid this oops.
> >
> > Stop using sleep_on_timeout(). It's almost certainly
> > buggy.
> >
> > --
> > dwmw2
> >
> >
> > --
> > Kernelnewbies: Help each other learn about the Linux
> > kernel.
> > Archive:
> > http://mail.nl.linux.org/kernelnewbies/
> > FAQ:           http://kernelnewbies.org/faq/
> >
> >
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
> Archive:       http://mail.nl.linux.org/kernelnewbies/
> FAQ:           http://kernelnewbies.org/faq/
>
>

Re: Badness in sleep_on_timeout on kernel 2.6.9-1.667 ( fedora core 3)

[Arjan van de Ven]

On Tue, 2006-02-07 at 12:00 -0800, anil dahiya wrote:
> Hello 
> I am creating kernel thread on fedora core 4
> (2.6.9-1.667)and my getting oops something like
> 
>  Badness in sleep_on_timeout at kernel/sched.c:3022
>  [<02302bc3>] sleep_on_timeout+0x5d/0x23a
>  [<0211b919>] default_wake_function+0x0/0xc


you forgot to post a URL to your code
(and you use sleep_on_* family of APIs which is a bug in itself)