Hi Guys,
I am trying to do the following but I am getting undefined reference
error ?
I have two modules lets say Module A & Module B. Module B defines a function
called
module_b_func() which got exported also. Then I compile module B and
inserted into kernel using insmod.
Then in module A I t
On Sun, Jun 27, 2010 at 10:05 PM, Mulyadi Santosa wrote:
> On Mon, Jun 28, 2010 at 09:54, sam shepperd wrote:
> > Kindly thanks - that helps. However the virtual address of the kernel
> > symbol I am looking up in memory is not within current->mm.
>
I see. I think i know what you mean . Your s
On Mon, Jun 28, 2010 at 09:54, sam shepperd wrote:
> Kindly thanks - that helps. However the virtual address of the kernel
> symbol I am looking up in memory is not within current->mm.
Are you sure? Theoritically, kernel address space is mapped throughout
all the task structure (e.g current->mm
Hi!
On 21:47 Sun 27 Jun , Harishkumar V wrote:
> hi,
>
> oh is it, can u explain, how to find out it.which portion of the code. i
> see only this,
The point is that even tough the stack trace usually contains the right trace,
this one does not. This is why I have suggested trfing to repr
On Sun, Jun 27, 2010 at 9:20 PM, Venkatram Tummala
wrote:
>
>
> On Sun, Jun 27, 2010 at 9:18 AM, sam shepperd wrote:
>>
>> How can I found out the mm_struct or PTE for a given virtual address
>> (0xCxxx)?
>>
>> I can use virt_to_page(virtual_address) to return a struct page, but then
>> what
On Mon, Jun 28, 2010 at 3:40 AM, raja roy wrote:
> Hi All,
> I was trying to understand the booting steps,
>
> BIOS loads the first sector (MBR) of a bootable device(considering disk
> only) in RAM (:7c00)and then jumps to that addr to execute the primary
> boot loader which in turn loa
Hi All,
I was trying to understand the booting steps,
BIOS loads the first sector (MBR) of a bootable device(considering disk
only) in RAM (:7c00)and then jumps to that addr to execute the primary
boot loader which in turn loads the secondary boot loader(grub) pointed to
by an active pa
On Sun, Jun 27, 2010 at 22:36, Usman S. Ansari wrote:
> Obviously memory is allocated in both cases.
OK, that was something I was unaware. So, in module A which originally
holds the struct, you already put a value in buf[0]? And you
absolutely sure it's allocated there, right?
> Question is, whe
Dear everybody in kernelnewbies
It has been around 7 years that I join this list. I started as
complete (read: zero) newbie in kernel field and now, at least IMO, I
know at least few things about Linux kernel and still learning the
rest. For that, I thank everybody here for the support, discus
Hi,
can u guide how to debug this and have an fix/workaround for this.
i see softlockup_tick and many funtions in the trace message. how to
pinpoint where it got struck.
On Sun, Jun 27, 2010 at 9:47 PM, Harishkumar V wrote:
> hi,
>
> oh is it, can u explain, how to find out it.which portion
hi,
oh is it, can u explain, how to find out it.which portion of the code. i
see only this,
handle_IRQ_event+0x28/0x74
LR is at handle_level_irq+0x94/0xec
pc : []lr : []psr: 48000113
sp : c7eede90 ip : c7eedeb0 fp : c7eedeac
r10: 001d r9 : c0638ba8 r8 :
r7 : 005c
How can I found out the mm_struct or PTE for a given virtual address
(0xCxxx)?
I can use virt_to_page(virtual_address) to return a struct page, but then
what can I do with the struct page? I cannot use rmap's
page_check_address() because I do not have a struct mm_struct.
Kindly thanks,
Sam
--- On Sat, 6/26/10, Mulyadi Santosa wrote:
> From: Mulyadi Santosa
Usman S. Ansari
> wrote:
> > Don't understand what you are saying.
>
> You said by yourself that kmalloc fixed the situation, right? Actually
> it's quite clear once you think deeper about it (unless I am really
> fooled).
Ob
i'm fairly sure i know how the above features work, but is there a
decent online coverage of that? otherwise, i'll post what i think is
happening here and others are free to correct me. thanks.
rday
--
Robert P. J. Da
Hi!
On 14:09 Sun 27 Jun , Harishkumar V wrote:
> MMU is available in ARM.
>
> if the same(cpu softlockup) exists on x86, how to handle this, u told in
> earlier mail,
>
> "This is only the stack trace of the softlockup check, not the code which
> got stuck", how to find out at which point, t
MMU is available in ARM.
if the same(cpu softlockup) exists on x86, how to handle this, u told in
earlier mail,
"This is only the stack trace of the softlockup check, not the code which
got stuck", how to find out at which point, the code got struck, in x86.
On Sun, Jun 27, 2010 at 11:47 AM, Mic
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