Re: Problem with kdb-v4.4-2.6.9

On Wed, Jan 25, 2006 at 08:18:07PM -0800, johnpw wrote:
> Greetings,
> 
> I have  been running kdb v4.4-2.6.9 on 2.6.9 kernel for two weeks.
> I have found the following problems:
> 
> 1. When the kernel panic, the bt command does not show the
>    correct stack trace and the arguments on the calling chain.
>    I did not have this problem with kdb-v4.3-2.4.21 on
>    2.4.21 kernel. I patched the kernel with kdb and there was
>    no failure.
>    
>    for example, 
>    When the kernel panic, The console showed the following output,
>    
>    
>      inode hda7:2555908 at cdbed370: mode 40755, nlink 0, next 0
> Assertion failure in ext3_put_super() at fs/ext3/super.c:418: 
> "list_empty(&sbi->s_orphan)"
> ------------[ cut here ]------------


Hmmm, you don't say what arch you have.  It's a 32bit something?

I would check for arch/<my-arch> kdb fixes that came later.  For my own 2.6.9
(RHEL4) kernels I am using the 2.6.9 kdb patches and then various bits from
all later kdb patches--especially anything that would fall under
arch/<my-arch>.

So this means my kdb patch stack for RHEL4 on x86_64 contains these patches:

kdb-v4.4-2.6.9-common-2
kdb-v4.4-2.6.9-rc2-x86-64-1
kdb-task-fixes		--compile error fix, from a later patch
kdb-machine_restart	--kdb_reboot() fix for x86_64, inspired by a later patch
kdb-backtrace-fixes	--kdba_bt_stack() fix for x86_64, from later patches

# Misc things from kdb patches that were spun for later 2.6.x kernels.  At
# least one of these adds new useful kdb commands like 'inode', etc.

kdb-fixes-from-2.6.10
kdb-fixes-from-2.6.11-a
kdb-fixes-from-2.6.13
kdb-fixes-from-2.6.14

I haven't been using my 2.6.9 kernels lately, though, so I can't say if I'm
seeing the problems you're describing or if one of the above fixes it.  I also
have all of my kdb stuff built-in to the kernel, rather than loading as
modules as you have it.

Dean
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