06-16-2011
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
hi ,
does anybody know about where to get kernel debugger for linux kernel version 2.6.11.
I found it in oss.sgi.com.But there i have to download through ftp,which is not enabled here.
So can anybody tell where can i get kdb(kernel debugger)through http.
thanks in advance
sriram (0 Replies)
Discussion started by: sriram.ec
0 Replies
2. UNIX for Advanced & Expert Users
hi,
I want to have a debugger for my kernel and
I am using kernel-2.6.11 n i am having patches
kdb-v4.4-2.6.11-common-1.bz2
kdb-v4.4-2.6.11-i386-1.bz2.
I applied both.
I did make menuconfig with options
CONFIG_KDB n CONFIG_FRAME_POINTER being set.
when i tried to compile kernel. I got an... (0 Replies)
Discussion started by: sriram.ec
0 Replies
3. UNIX for Dummies Questions & Answers
I am trying to Install RHEL AS 4 on x86 pc, through VNC and got the below error, Am not pretty sure as how to resolve this. Can some one guide me through the process, or what might be missing....
Have Installed RHEL, many a times but cudnt find this out...
Wud appreciate an early reply ......... (0 Replies)
Discussion started by: Crazy_murli
0 Replies
4. UNIX for Advanced & Expert Users
Hi all,
I need some help in compiling a new kernel. I am using RHEL 5 with kernel version 2.6.18.
I have downloaded a kernel from link http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.20.6.tar.bz2
1. cd /usr/src
2. wget -c http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.20.tar.bz2
3.... (1 Reply)
Discussion started by: vikas027
1 Replies
5. Red Hat
Hi, I need some help. I installed RHEL AS 4 u5 x86_64 (vendor requirement) on a Dell Blade 1855. I have a daughter board that will give it a HBA port. I can't install the daughter card until the Qlogic driver is loaded. I can't install the Qlogic driver sine the kernel src is not there.
So I... (0 Replies)
Discussion started by: BFLO
0 Replies
6. Red Hat
Hello,
Is there a way to force a kernel panic in RHEL 5.4 in such a way that
the machine reboots after the panic.
Thanks,
Kanna (1 Reply)
Discussion started by: kanna_geekworkz
1 Replies
7. IP Networking
Can someone here please help and walk me through what I need to do to setup
my network so that I can start an oracle listener ?
I am connected through a router (netgear) and everytime I start my machine the ip address changes because of DHCP (I think). There are so many parameters that I do... (5 Replies)
Discussion started by: jxh461
5 Replies
8. Programming
GNU insight debugger is not available now a days and it is required to debug/inspect
assembly code as written in the book Assembly Language Programming step by step in Linux so my question is; is there any alternative to insight that I can use instead of insight in which I can get the same... (5 Replies)
Discussion started by: vectrum
5 Replies
9. Red Hat
Hi all,
Im studying rhcsa as of now, so yum installation and dependencies are messing me to not workit out.
i have dual os, win 7 & rhel 6.
i have tried this installation of vsftpd package with rhel 6 dvd in VM rhel 6 in win 7 as well as host rhel 6.still the same issue.
below error... (6 Replies)
Discussion started by: redhatlbug
6 Replies
10. IP Networking
Could someone tell me how to setup VPN for RHEL5 so that i can connect remotely from another location. (1 Reply)
Discussion started by: kartheekm56
1 Replies
IPKDB(4) BSD Kernel Interfaces Manual IPKDB(4)
NAME
ipkdb -- IP-based kernel debugger
SYNOPSIS
options IPKDB
options IPKDBSECURE
options IPKDBKEY=""IPKDB key for remote debugging""
options IPKDB_NE_PCISLOT=x
DESCRIPTION
ipkdb is a kernel debugger that uses UDP and IP to communicate with a remote debugger (normally gdb(1)).
Since the debugger uses its own driver to talk to the networking hardware, the number of supported network interfaces is a lot less than what
is supported by the kernel. At the time of this writing, there is only support for a NE2000 compatible card in a PCI slot. In order for
ipkdb to find your card, you need to specify the slot the card is in via the options IPKDB_NE_PCISLOT.
To use ipkdb, you have to set up a DHCP server, from which ipkdb can get the IP address for the interface that is used for debugging.
To enter ipkdb, the remote debugger has to send the protocol start packet. E.g., gdb will do this on the command
target ipkdb debuggee IPKDB key for remote debugging
where debuggee is the name of the machine to debug (which must resolve to the IP address of the interface), and the rest of the line corre-
sponds to the definition of IPKDBKEY (see below). For ipkdb to actually see this packet, the interface which is used for debugging has to be
set up to actually receive packets, i.e. it has to be up and running.
To prevent messing around with a secured system, ipkdb normally also checks the security level at which the kernel is running. ipkdb will
only work with security levels less than 1, unless the kernel is configured with options IPKDBSECURE.
In addition, the debugger is forcedly entered on a panic, as well as on initial startup, if you boot the kernel with the -d option (note that
this however is machine dependent). On such a forced enter to ipkdb there is no need for the interface in question to already be up and run-
ning, since ipkdb only needs to send/receive packets via its own driver.
As some form of security against the occasional hacker, ipkdb uses the definition of options IPKDBKEY to compute a checksum on the data in
every packet. The remote debugger has to send this checksum, based on the data it sends and the key, or ipkdb ignores the packet. This is
also used in order to check against data errors on the connection.
SEE ALSO
gdb(1), ddb(4), ip(4), udp(4), init(8)
HISTORY
ipkdb appeared in NetBSD 1.3 for the first time. Its configuration and setup changed quite a bit in NetBSD 1.5.
BUGS
Since the kernel includes the definition of IPKDBKEY, anyone who can read the kernel can extract it and use it to enter ipkdb.
There is no support for ip6(4).
BSD
March 27, 2000 BSD