Dear all,
This is the Program Header for cat info:
readelf -l /bin/cat
...
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR 0x34 0x08048034 0x08048034 0x00120 0x00120 R E 0x4
INTERP 0x000154
Looks like they have added a new section GNU_RELRO in the later versions.
The one you are referring is read-only section. It would be nice if you
share the section header table.
Plz see inline
Regards,
Prabhunath G
Linux Trainer
Bangalore
On Thu, Mar 7, 2013 at 3:31 PM, Jacky
Hi Konstantin,
On Thu, Mar 7, 2013 at 4:49 AM, Konstantin Kowalski kostya-...@mail.ru wrote:
Hello everyone,
I am interested in Linux kernel programming (and OS kernels and
general), and I am currently reading several books about Linux kernel. I
have a few questions about it:
1.)
On Thu, Mar 07, 2013 at 12:34:27AM -0500, valdis.kletni...@vt.edu wrote:
On Thu, 07 Mar 2013 12:48:06 +0800, ishare said:
because all the pde (0-768) are set to 0x0 ,so no phsical pages are
mapping to these pde .
isn't it?
The pdes don't end at 768. Think about what pde numbers
Thanks Prabhunath!
The following is section header table:
==
readelf -S /bin/cat
There are 28 section headers, starting at offset 0xb260:
Section Headers:
[Nr] Name TypeAddr OffSize ES Flg Lk Inf Al
[ 0] NULL
Hello,
what is the difference between disabling interrupts and masking
interrupts ? Disabling interrupts is done, AFAIK, with irq_disable().
(see below)
Can someone gives an example of how to mask interrupts
with x86/x86_64 ?
irq_disable() in x86 goes to native_irq_disable(), which
eventually
In init procedure ,I use kmem_cache_alloc to apply for memory to locate a
inode struct.
it returns to me a inode whose i_dentry element cantain a struct list_head
pointing to address 0x3,
Is the address within low momery resonable or illegal?
thanks!
On Thu, Mar 7, 2013 at 7:28 PM, Kevin Wilson wkev...@gmail.com wrote:
Hello,
what is the difference between disabling interrupts and masking
interrupts ? Disabling interrupts is done, AFAIK, with irq_disable().
Disabling interrupts means that you have disabled the source of interrupt.
Masking
Hi.
First: Thanks, Anish, for your quick response.
Does this mean that once you are disabling
interrupts, these interrupts are lost ? even later, when we will
enable interrupts, the interrupts from the past that should have been
created (but interrupts were disabled at that time interval) are in
On Thu, Mar 7, 2013 at 8:47 PM, Kevin Wilson wkev...@gmail.com wrote:
Hi.
First: Thanks, Anish, for your quick response.
Does this mean that once you are disabling
interrupts, these interrupts are lost ? even later, when we will
enable interrupts, the interrupts from the past that should
On Thu, 07 Mar 2013 17:17:19 +0200, Kevin Wilson said:
Does this mean that once you are disabling
interrupts, these interrupts are lost ? even later, when we will
enable interrupts, the interrupts from the past that should have been
created (but interrupts were disabled at that time
Hi,
On Thu, Mar 7, 2013 at 8:53 AM, valdis.kletni...@vt.edu wrote:
On Thu, 07 Mar 2013 17:17:19 +0200, Kevin Wilson said:
Does this mean that once you are disabling
interrupts, these interrupts are lost ? even later, when we will
enable interrupts, the interrupts from the past that
On Thu, 07 Mar 2013 09:28:58 -0800, Dave Hylands said:
In my experience, edges triggered interrupts are always latched by the HW
when they arrive. If another edge comes along between the initial edge and
the time that the interrupt is cleared, then this second edge is lost. The
fact that an
Hi,
Sorry about my previous post in HTML.
On Thu, Mar 7, 2013 at 9:40 AM, valdis.kletni...@vt.edu wrote:
On Thu, 07 Mar 2013 09:28:58 -0800, Dave Hylands said:
In my experience, edges triggered interrupts are always latched by the
HW
when they arrive. If another edge comes along between
Hi!
I am trying to test for signal handling race conditions (specifically, I
suspect the kernel side of connect() does interesting things if the server
response arrives while the program executes a signal handler) and want to
flood a program with lots of signals. So I have run this:
---
On Thu, Mar 7, 2013 at 7:38 PM, Jacky jackycli...@163.com wrote:
Thanks Prabhunath!
The following is section header table:
==
readelf -S /bin/cat
There are 28 section headers, starting at offset 0xb260:
Section Headers:
[Nr] Name Type
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