Milind,
I was following the discussions, and I have some questions for you.
1) Why we cant give "kgdbwait" as a kernel parameter while using "kgdboe"?
2) I am trying on ARM board, if I give kgdbwait as kernel parameter, and
tries to attach remote gdb, kernel crashes.
While if I dont give kgdbwait, and try to connect remote gdb after
kernel boots up, it works fine. Can you explain why it is so? and if i
wanna debug kernel initialization part how can I do it using kgdb?
Thanks in advance,
Regards,
Rupesh.
Milind Dumbare wrote:
> Well, building kernel is not discussed on this list. Be specific to KGDB
> questions. Read the kernel's documentation for building kernel.
>
> -Miline
> On Thu, Jun 5, 2008 at 3:45 PM, Bhagwat <[EMAIL PROTECTED]>
> wrote:
>
>
>> Hi Milind
>>
>>
>>
>> I will check with that, but do I need to do any more steps or is it enough
>> With reference to your quick start document
>> http://kgdb.linsyssoft.com/downloads/kgdb-2/kgdbquickstart-2.4.pdf I have
>> done make bzImage and copied the kernel to target machine, it is not booting
>> up, Do I need to do $ make module then $ make module_install
>>
>> Someone suggested me to do $ make modules and make module_install since
>> kernel is not booting up. Do I need to do this, as it is not mentioned in
>> kgdb-quick start docs.
>>
>> Thanks
>>
>> Bhagwat
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> *From:* Milind Dumbare [mailto:[EMAIL PROTECTED]
>> *Sent:* Thursday, June 05, 2008 2:58 PM
>> *To:* Bhagwat Masalkar
>> *Cc:* KGDB Mailing List
>> *Subject:* Re: how to chk dmesg on remote machine, as it is not booted up?
>>
>>
>>
>> It seems you have given the grub entry in wrong way.
>> The kgdboe line in your grub should be on Kernel (third)line following
>> "rhgb quiet" and not on separate line.
>>
>> On Thu, Jun 5, 2008 at 2:36 PM, Bhagwat <[EMAIL PROTECTED]>
>> wrote:
>>
>> HI Milind
>>
>>
>>
>> Thanks for your light speed reply,
>>
>>
>>
>> In my grub entry I did't added "kgdbwait", still it is not booting up,
>>
>>
>>
>> My grup entry is_
>>
>> title Bhagwat Kernel
>>
>> root (hd0,5)
>>
>> kernel /vmlinuz-2.6.15-kgdb ro root=LABEL=/ rhgb quiet
>>
>> initrd /initrd-2.6.15-kgdb.img
>>
>> [EMAIL PROTECTED]/eth1 00:00:E2:78:ED:8D,@192.168.2.26/
>>
>> console=ttyS0,115200
>>
>>
>>
>> As target machine 192.168.2.117 is mapped to eth1 not to eth0.
>>
>> With reference to your quick start document
>> http://kgdb.linsyssoft.com/downloads/kgdb-2/kgdbquickstart-2.4.pdf I have
>> done make bzImage and copied the kernel to target machine, it is not booting
>> up, Do I need to do $ make module then $ make module_install
>>
>>
>>
>> Thanks
>>
>> Bhagwat
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> *From:* Milind Dumbare [mailto:[EMAIL PROTECTED]
>> *Sent:* Thursday, June 05, 2008 12:27 PM
>> *To:* Bhagwat Masalkar; KGDB Mailing List
>> *Subject:* Re: how to chk dmesg on remote machine, as it is not booted up?
>>
>>
>>
>> Hi Bhagwat,
>> In KGDBoE (KGDB over ethernet) we don't add "kgdbwait" on kernel command
>> line (grub entry) so the kgdb machine should not wait for connection from
>> remote gdb while booting and should boot like a normal machine. So when it
>> boots up you see the dmesg see if KGDBoE is configured properly and its up
>> and running, and then try connecting from remote gdb.
>>
>> -Miline
>>
>> On Thu, Jun 5, 2008 at 12:15 PM, Bhagwat <[EMAIL PROTECTED]>
>> wrote:
>>
>> Hi milind,
>>
>>
>>
>> I have seen ur response at
>> http://www.mail-archive.com/[email protected]/msg00067.html
>>
>>
>>
>> I am also facing same problem, like
>>
>>
>>
>> I am trying to setup kgdb with ethernet. I have downloaded 2.6.15.5
>>
>>
>>> kernel and 2.4 kgdb patch for 2.6.15.5 kernel release. I successfully
>>>
>>> applied the following patches
>>>
>>> core-lite.patch
>>>
>>> i386-lite.patch
>>>
>>> 8250.patch
>>>
>>> eth.patch
>>>
>>> core.patch
>>>
>>> i386.patch
>>>
>>> and configured with ethernet support for kgdb with make menuconfig.
>>>
>>> then i gave make bzImage command and placed both System.map and
>>>
>>> bzImage to the target machine's boot directory. Then I have made an
>>>
>>> entry in grub.conf file to be able to boot with newly copied bzImage
>>>
>>> and specified parameters as
>>>
>>> kgdboe = @192.168.0.1/ , @192.168.0.2/
>>>
>>> then I have started gdb at development machine by issuing the command
>>>
>>> gdb ./vmlinux.
>>>
>>> now at gdb prompt, i have given the command target remote
>>>
>>> udp:192.168.0.2:6443. At this stage, I am getting an error that "host
>>>
>>> is not reachable and ignoring packet error".
>>>
>>
>> I have done target remote udp:192.168.0.1:6443 also, but no success getting
>> same msg, like host is not reachable ignoring packet error.
>>
>>
>>
>> Also as you suggested, See "dmesg" output of kgdb machine for more help.
>> look for "kgdboe"
>>
>> messages in it.
>>
>> But on KGDB running machine, it is not booted up, and its waiting for
>> connection from host, how to chk dmesg.
>>
>>
>>
>> Please share your experience.
>>
>>
>>
>> Thanks
>>
>> Bhagwat
>>
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> The information contained in this email and any attachments is confidential
>> and may be subject to copyright or other intellectual property protection.
>> If you are not the intended recipient, you are not authorized to use or
>> disclose this information, and we request that you notify us by reply mail
>> or telephone and delete the original message from your mail system.
>>
>>
>>
>>
>> --
>> Milind Dumbare
>> Sr. Systems Engg.
>> Linsyssoft Technologies.
>>
>>
>> ------------------------------
>>
>> The information contained in this email and any attachments is confidential
>> and may be subject to copyright or other intellectual property protection.
>> If you are not the intended recipient, you are not authorized to use or
>> disclose this information, and we request that you notify us by reply mail
>> or telephone and delete the original message from your mail system.
>>
>>
>>
>>
>> --
>> Milind Dumbare
>> Sr. Systems Engg.
>> Linsyssoft Technologies.
>>
>> ------------------------------
>> The information contained in this email and any attachments is confidential
>> and may be subject to copyright or other intellectual property protection.
>> If you are not the intended recipient, you are not authorized to use or
>> disclose this information, and we request that you notify us by reply mail
>> or telephone and delete the original message from your mail system.
>>
>>
>
>
>
>
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