smp errors in 2.4!!

smp errors in 2.4!!

[Manfred Spraul]

> I encounter this compilation error:
> /usr/x.c:2112: struct has no member named
> "event_Rsmp_7b16c344"

I assume you have a variable called 'event', and that name got replaced
by a versioned symbol.
Yes, 'event' is a global variable in the kernel ;-)

Do you include <linux/modversions.h> in that file?

I usually use 'gcc -E' to find such problems.

--
	Manfred

Test Mail!!!

[jalaja devi]

 
 

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Is Kernel2.2 is SMP versioned by default?

[jalaja devi]

Hi,
Could anyone plz tell me whether the kernel - 2.2.14
is SMP or NON-SMP by default?
To make it SMP versioned, Do I need to add some flags
in the kernel header files and re-compile to kernel?

Thanks in advance,
Jal


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Re: Is Kernel2.2 is SMP versioned by default?

[Robert Love]

On 08 Jun 2001 07:58:48 -0700, jalaja devi wrote:
> Hi,
> Could anyone plz tell me whether the kernel - 2.2.14
> is SMP or NON-SMP by default?
> To make it SMP versioned, Do I need to add some flags
> in the kernel header files and re-compile to kernel?

i actually think it may be SMP (for whatever odd reason).
you need to configure and compile the kernel, anyhow.
select from one of:

make config (text)
make menuconfig (curses)
make xconfig (Tk)

and make sure SMP is enabled, as well as support for the rest of your
hardware and the features you want.

then: make dep clean bzImage modules

see the Kernel Compile HOWTO

-- 
Robert M. Love
rml@ufl.edu
rml@tech9.net

kgdb ksymtab_addr not found!!

[jalaja devi]

Hi,

I have 2 quesions here:


1. Could any plz tell me what am i missing out here?

I basically, trying to debug my my loadable module in
kernel in kernel2.4.6 version. I patched the kernel
with 2.4.6 kgdb patch, using the recent version.

I am using the modutils shell script to load my module
loadmodule.sh which creates a gdbscript. When I source
the gdbscript I get the following warnings:

warning : section _ksymtab not found in mymodule.o
warning : section _archdata not found in mymodule.o

Do I need to patch the kernel with the modutils. Why
do I get these warnings.


2. How can I put a breakpoint to debug my init_module?
Which is the Kernel Fxn to be invoked to put a
breakpoint in my init_module?


Thanks in advance,

Jalaja




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Re: kgdb ksymtab_addr not found!!

[Amit S. Kale]

jalaja devi wrote:
> 
> Hi,
> 
> I have 2 quesions here:
> 
> 1. Could any plz tell me what am i missing out here?
> 
> I basically, trying to debug my my loadable module in
> kernel in kernel2.4.6 version. I patched the kernel
> with 2.4.6 kgdb patch, using the recent version.
> 
> I am using the modutils shell script to load my module
> loadmodule.sh which creates a gdbscript. When I source
> the gdbscript I get the following warnings:
> 
> warning : section _ksymtab not found in mymodule.o
> warning : section _archdata not found in mymodule.o
> 
> Do I need to patch the kernel with the modutils. Why
> do I get these warnings.

These warnings can be safely ignored.

> 
> 2. How can I put a breakpoint to debug my init_module?
> Which is the Kernel Fxn to be invoked to put a
> breakpoint in my init_module?

You can place a breakpoint just before the the statement
where kernel calls init_module. Then load the generated
gdb script into gdb once the breakpoint is hit. Now you
can place a breakpoint directly into any statement in the
module code.


> 
> Thanks in advance,
> 
> Jalaja
> 
> __________________________________________________
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> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

-- 
Amit Kale
Veritas Software ( http://www.veritas.com )

kgdb in kerenel2.4.6 : Unable to view the global variables!!

[jalaja devi]

Hi,
I am using kgdb for kernel2.4.6. But I am unable to
see my global variables. Could anyone please tell me
how can i fix this?

Also, When i install the loadmodule.sh, it creates the
gdbscripts. When I source the gdbscript, it gives the
warning,

> > warning : section _ksymtab not found in mymodule.o
> > warning : section _archdata not found in
mymodule.o

Is that related? Any hints will be helpful



Thanks in advance,
Jalaja

--- "Amit S. Kale" <akale@veritas.com> wrote:
> jalaja devi wrote:
> > 
> > Hi,
> > 
> > I have 2 quesions here:
> > 
> > 1. Could any plz tell me what am i missing out
> here?
> > 
> > I basically, trying to debug my my loadable module
> in
> > kernel in kernel2.4.6 version. I patched the
> kernel
> > with 2.4.6 kgdb patch, using the recent version.
> > 
> > I am using the modutils shell script to load my
> module
> > loadmodule.sh which creates a gdbscript. When I
> source
> > the gdbscript I get the following warnings:
> > 
> > warning : section _ksymtab not found in mymodule.o
> > warning : section _archdata not found in
> mymodule.o
> > 
> > Do I need to patch the kernel with the modutils.
> Why
> > do I get these warnings.
> 
> These warnings can be safely ignored.
> 
> > 
> > 2. How can I put a breakpoint to debug my
> init_module?
> > Which is the Kernel Fxn to be invoked to put a
> > breakpoint in my init_module?
> 
> You can place a breakpoint just before the the
> statement
> where kernel calls init_module. Then load the
> generated
> gdb script into gdb once the breakpoint is hit. Now
> you
> can place a breakpoint directly into any statement
> in the
> module code.
> 
> 
> > 
> > Thanks in advance,
> > 
> > Jalaja
> > 
> > __________________________________________________
> > Do You Yahoo!?
> > Make international calls for as low as $.04/minute
> with Yahoo! Messenger
> > http://phonecard.yahoo.com/
> > -
> > To unsubscribe from this list: send the line
> "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at 
> http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at  http://www.tux.org/lkml/
> 
> -- 
> Amit Kale
> Veritas Software ( http://www.veritas.com )


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Kernel-2.4.10 - Unresolved symbol

[jalaja devi]

Hi,
I compiled the code in kernel 2.4.6. But when i
compile the code in 2.4.10, and do a insmod it sez
Unresolved symbo: prefetch

Can anyone please tell me how to fix this and What
does this mean?

Thanks
Jalaja


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