Hi,
I need to use some unexported kernel symbols in my kernel module but in the
particular kernel version i am based on (2.6.18 - RHEL 5.7),
kallsyms_lookup_name is not exported and there is no kallsyms_on_each_symbol
in this kernel. And I can't change the kernel owing to reasons i have no
control
On Fri, Aug 5, 2011 at 9:23 PM, Mulyadi Santosa
wrote:
> Hi...
>
> On Fri, Aug 5, 2011 at 12:23, Akash wrote:
> > I think it was not built with -g otherwise the symbols would have been
> there
> > in the vmlinux itself, right ?
> > That is the reason I need to add symbols externally.
> > Please d
On Fri, Aug 5, 2011 at 17:24, san deep wrote:
> Hi,
>
> Could you please suggest how to freeze the 2.6 kernel(SMP m/c) with
> my own dlkm with less number of code.
>
> I tried the below mentioned code snippet, it hangs only the terminal
> on which i executed the insmod command.
> Please correc
On Fri, Aug 5, 2011 at 21:16, =/_00/\/\ wrote:
> Hi,
>
> I am trying to analyze memory usage on my system.
> As first step I am monitoring /proc/meminfo.
> Surprisingly I see Mapped value is more than Cached.
>
> So in which case is it possible to have Mapped more than Cached ?
your apps mmap() l
Hi...
On Fri, Aug 5, 2011 at 12:23, Akash wrote:
> I think it was not built with -g otherwise the symbols would have been there
> in the vmlinux itself, right ?
> That is the reason I need to add symbols externally.
> Please dont ask me to rebuild the kernel, this is vanilla OpenSUSE 11.3
> symbo
On Fri, Aug 05, 2011 at 10:36:00AM -0400, Robert P. J. Day wrote:
>
> for reasons that don't need explaining, i need to rebuild my current
> 3.0.0... kernel so that it returns a "uname" version number of
> "2.whatever". i simply have an app i want to run that checks the
> output of "uname" and
Use #if like
*
*#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33)
// New socket create function
#else
// Old socket create function
#endif
LINUX_VERSION_CODE is defined somewhere in the kernel and you should ge
Thanks Greg. Appreciate your reply.
Regards,
Ramesh
On Fri, Aug 5, 2011 at 12:06 PM, Greg KH wrote:
> On Fri, Aug 05, 2011 at 11:39:16AM -0700, Ramesh.P wrote:
>> Hi,
>>
>> Good day!
>>
>> When a system is rebooted, the loadable kernel modules 'module_exit'
>> functions are not called. I see thi
Im trying to use macros from include/linux/compiler.h
and theyre giving me warnings that dont look right.
after thrashing on my own hacks, I looked to well established uses for guidance.
But make C=1 fs/file.o also gives errors, similar to mine.
What am I missing ?
or has some bitrot set in ?
2
I am compiling my driver and have run into following scenario.
Socket create function got a new parameter in Vanila kenrel 2.6.33. while
Scientific Linux has it back ported to 2.6.32. How do I handle this kind of
situation ? so that my driver compiles for both kernel versions.
On Fri, Aug 05, 2011 at 11:39:16AM -0700, Ramesh.P wrote:
> Hi,
>
> Good day!
>
> When a system is rebooted, the loadable kernel modules 'module_exit'
> functions are not called. I see this behavior in a custom kernel. My
> questions are
>
> a. Is this applicable in mainline/normal kernel too?
Hi,
Good day!
When a system is rebooted, the loadable kernel modules 'module_exit'
functions are not called. I see this behavior in a custom kernel. My
questions are
a. Is this applicable in mainline/normal kernel too?
b. If yes, what are the reasons? (One reason may be, not to get into
new prob
On Fri, 5 Aug 2011, Greg KH wrote:
> On Fri, Aug 05, 2011 at 10:36:00AM -0400, Robert P. J. Day wrote:
> >
> > for reasons that don't need explaining, i need to rebuild my current
> > 3.0.0... kernel so that it returns a "uname" version number of
> > "2.whatever". i simply have an app i want to
On Fri, Aug 05, 2011 at 10:36:00AM -0400, Robert P. J. Day wrote:
>
> for reasons that don't need explaining, i need to rebuild my current
> 3.0.0... kernel so that it returns a "uname" version number of
> "2.whatever". i simply have an app i want to run that checks the
> output of "uname" and
for reasons that don't need explaining, i need to rebuild my current
3.0.0... kernel so that it returns a "uname" version number of
"2.whatever". i simply have an app i want to run that checks the
output of "uname" and if it doesn't see a major number of "2", it goes
a bit squirrelly.
there'
Hi,
I am trying to analyze memory usage on my system.
As first step I am monitoring /proc/meminfo.
Surprisingly I see Mapped value is more than Cached.
So in which case is it possible to have Mapped more than Cached ?
Regards,
~/
___
Kernelnewbies m
Apologies for the top post. I simply forgot to not do that.
On Aug 5, 2011 8:11 AM, "Greg Freemyer" wrote:
>
> There are no "specs" as to how a sparse file is handled in response to
writes.
>
> Sparse is mostly beneficial when the holes are very large.
>
> If an app really wants to have minimal
There are no "specs" as to how a sparse file is handled in response to
writes.
Sparse is mostly beneficial when the holes are very large.
If an app really wants to have minimal on disk space, you should
pre-allocate space with fallocate.
You may even need to hole punch after the writes. Both xf
Hi,
Could you please suggest how to freeze the 2.6 kernel(SMP m/c) with
my own dlkm with less number of code.
I tried the below mentioned code snippet, it hangs only the terminal
on which i executed the insmod command.
Please correct the below code to freeze whole kernel.
#include
#i
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