Re: Kgdb related prob. (err - "Cannot find bounds of current funtion"!!)

"Artem B. Bityuckiy" <abityuckiy@xxxxxxxxx> · Thu, 30 Sep 2004 15:35:47 +0400

You should use "add-symbol-file" command. The kernel should be compiled 
with debuginfo. Also you should have the uncompressed kernel (or module) 
image to read symbols from it.

Mandeep Sandhu wrote:
i don't think so......how do u do that???

On Thu, 2004-09-30 at 16:23, Artem B. Bityuckiy wrote:

Did you load debugging symbols?

Mandeep Sandhu wrote:

hi list,

don't know wether this is the correct list to ask KGDB related prob.
If not, can someone point me to the mailing list where i can post my
ques.........or else read on.......

I'm trying to bring up a kgdb setup. I have 2 intel machines.
Target - mac1, Host - mac2. I downloaded the latest kgdb patch
for 2.6.8.1 on mac1 and applied it on the kernel src. I then
complied it on the target machine itself. Then copied (scp) the
kernel image + System.map to my host mac where i have the same
kgdb patched source (copied it to /usr/src/linux-2.6.8.1 of mac2).

made changes to grub etc. and rebooted the target mac...which stopped
at "waiting for connection from remote server".

From the host's /usr/src/linux-2.6.8.1 dir i ran
$> gdb vmlinuz-2.6.8.1-kgdb

connected to the target mac using "target remote /dev/ttyS0"

then i got the following line

(gdb) 0x(some addr) in ??

then when i try to step thru. using step command i get "Cannot find
bounds of current function".

If i type "continue" the target resumes booting fine.
any clues why this is happeneing???

TIA,
-mandeep

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Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.

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