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Cannot Access Memory At 0xe, kdbg on Ubuntu


Cannot Access Memory At 0xe, kdbg on Ubuntu

By : user2956925
Date : November 22 2020, 03:03 PM
should help you out 544497989 is the address of EatMsg, it's just the memory location, i.e. some huge number. If you know C or C++, it's the equivalent of &eatMsg if your declaration is char * eatMsg = "Eat at Joe's!";
EatLen is the length of the EatMsg: $ stands for "address at this point", which is the next location after all bytes of EatMsg. So $-EatMsg is "address after all bytes of EatMsg minus address of beginning of EatMsg" = "length of EatMsg" = 14 decimal = 0x0E hexadecimal.
code :


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unable to access memory 0X.... C program (Ubuntu 12.10)

unable to access memory 0X.... C program (Ubuntu 12.10)


By : crimo
Date : March 29 2020, 07:55 AM
Hope this helps In the while you check if sftemp!=NULL so we can be sure that in the second iteration, after line sftemp=sftemp->next; the pointer contain allocated memory.
But, since I don't know how the list it structured, I can't be sure that the content contains another node of sharedFiles type, it could contain an end-list node which not contains UFID attribute.
code :
while(sftemp->next!=NULL)

...

if(sftemp->next==NULL) {
    //add the node in the right way, consider the end-list node
}
Structure declaration:

struct sharedFiles
{
  char UFID[50];
  int valid;                    //valid 1 if someone have this file in write mode
  int shared;                   //no of user's reading this file
  struct sharedFiles *next;     //pointer to next node
}*sfstart = NULL,*sfend;
Ubuntu gdb can't access memory at address when tryint to view memory at $esp

Ubuntu gdb can't access memory at address when tryint to view memory at $esp


By : Hongxu Liu
Date : March 29 2020, 07:55 AM
To fix the issue you can do You want $rsp, not $esp.
By using $esp, you got the sign-extended 32-bit-truncated value of $rsp, which points to neverland.
code :
(gdb) p $rsp
$1 = (void *) 0x7fffffffe178
(gdb) p $sp
$2 = (void *) 0x7fffffffe178
(gdb) p $esp
$3 = -7816
(gdb) p/x $esp
$4 = 0xffffe178
Pygattlib unauthorized access to the memory [Ubuntu 16.4]

Pygattlib unauthorized access to the memory [Ubuntu 16.4]


By : Tarek Natsheh
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Finally it was a bug on bluez.
I just update bluez manualy to the newest version:
code :
wget http://www.kernel.org/pub/linux/bluetooth/bluez-5.44.tar.xz
tar xvf bluez-5.44.tar.xz
cd bluez-5.44
./configure --prefix=/usr           \
            --mandir=/usr/share/man \
            --sysconfdir=/etc       \
            --localstatedir=/var    \
            --enable-library        \
            --disable-systemd       \
            --disable-android       
make
sudo make install
KDbg - how to dock the memory window into the main Kdbg window?

KDbg - how to dock the memory window into the main Kdbg window?


By : Hui Hao
Date : March 29 2020, 07:55 AM
Does that help @daihard there are dotted lines on the seperate windows, if you grab it with the mouse and drag it into the main window it will let you place it.
Jim
The KDbg is not working/launching on ubuntu

The KDbg is not working/launching on ubuntu


By : rusdvl
Date : March 29 2020, 07:55 AM
To fix this issue You may find this thread helpful https://bbs.archlinux.org/viewtopic.php?id=170379. It suggests to delete icon file /usr/share/kde4/apps/kdbg/icons/hicolor/22x22/actions/pulse.mng. Try and see if this solves your problem.
If it doesn't, you can find additional information and updates on this issue at https://bugs.launchpad.net/ubuntu/+source/kdbg/+bug/1311893. As you can see, there it clearly accepts this as a bug in kdbg package.
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