dr,temp_regs.r_eax);
else if (cr_options.verbose)
fprintf(stdout,"Successfully allocated [0x%.8lx -
0x%.8lx]\n",addr,addr+size);
if(ptrace(PT_WRITE_D, exec_pid, (caddr_t)regs.r_eip,orig_instr)<0)
die_perror("ptrace(PT_WRITE_D,...) failed after executing mmap2
system call");
er, and to all the other
FreeBSD hackers on this amazing forum. Your patient replies to all my
questions helped a lot! :)
On 3 April 2012 02:12, John Baldwin wrote:
> On Saturday, March 31, 2012 5:40:50 pm Maninya M wrote:
> > Thanks.
> >
> > I've tried this. St
Hello,
I want to allocate memory at a specified address location 'a' of size 'b'.
I wrote code below to do it, but I'm getting a seg fault. How can I solve
this?
How can I get the allocated memory at the required address?
int main()
{
unsigned int *addr,*newaddr;
unsigned long a=134516736,a1;
unsi
bose)
fprintf(stdout,"Successfully allocated [0x%.8lx -
0x%.8lx]\n",addr,addr+size);
/* Restore original registers */
if (ptrace(PT_SETREGS,exec_pid,(caddr_t)&temp_regs,0) < 0) {
die_perror("ptrace(PT_SETREGS,...) when restoring registering after
allocating memory (
fprintf(stdout,"Successfully allocated [0x%.8lx -
0x%.8lx]\n",addr,addr+size);
/* Restore original registers */
if (ptrace(PT_SETREGS,exec_pid,(caddr_t)&temp_regs,0) < 0) {
die_perror("ptrace(PT_SETREGS,...) when restoring registering after
allocating memory (mmap2
I am trying to convert a function written for Linux to FreeBSD.
What is the equivalent of the __NR_mmap2 system call in FreeBSD?
I keep getting the error because of this exception:
warn("Wanted space at address 0x%.8x, mmap2 system call returned 0x%.8x.
This could be a problem.",addr,temp_regs.eax
10:49 PM, Maninya M wrote:
> > # sysctl debug.kdb.enter=1
> >
> > --
> >
> > But when I type that the computer hangs!
>
> Did you by any chance do that from a terminal window in X11
> environment? If that's the case, then kernel debugger is running
, 2012 at 11:25 AM, Maninya M wrote:
>>
>>> Then typed this to force a panic:
>>>
>>> sysctl debug.kdb.panic=1
>>>
>>> The computer just hung after this, and after waiting for a while I
>>> pressed
>>> the reboot button.
>>
.
On 14 March 2012 22:49, Artem Belevich wrote:
> On Wed, Mar 14, 2012 at 9:31 AM, Maninya M wrote:
> > How can I capture the states of all running processes at a particular
> point
> > in time? How can I retrieve this information for later use?
>
> Go into DDB. Do
How can I capture the states of all running processes at a particular point
in time?
How can I retrieve this information for later use?
--
Maninya
___
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To
am Maninya M wrote:
> > I was unable to get this information about the cpuid variable in the
> > scheduler source code.
> > How does cpuid get its value from the hardware?
>
> The cpuid is a software ID value assigned during boot. It is not
> directly related to any speci
I was unable to get this information about the cpuid variable in the
scheduler source code.
How does cpuid get its value from the hardware?
How is the CPUSTATES value obtained/changed with hardware in the source
code?
Which system commands for the above?
--
Maninya
__
For multicore desktop computers, suppose one of the cores fails, the
FreeBSD OS crashes. My question is about how I can make the OS tolerate
this hardware fault.
The strategy is to checkpoint the state of each core at specific intervals
of time in main memory. Once a core fails, its previous state
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