[ ssic-linux-Bugs-3033977 ] ssi-addnode-dynamic causes new nodes to kernel panic

Bugs item #3033977, was opened at 2010-07-24 07:03
Message generated for change (Comment added) made by rogertsang
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Category: Booting / init
Group: v1.9.3
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: djdoomsday (djdoomsday)
Assigned to: Nobody/Anonymous (nobody)
Summary: ssi-addnode-dynamic causes new nodes to kernel panic

Initial Comment:
Running Debian v5 2.6.14.
Whenever we attempt to use the ssi-addnode-dynamic all nodes booting will kernel panic when init calls the DHCP client (udhcpc). The cluster works perfectly when using manual ssi-addnode. This has been tested in VMWARE (e1000 emulation) and several dissimilar physical machines.

Further debug info forth-coming - Any feedback on what you'd require?

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>Comment By: Roger Tsang (rogertsang)
Date: 2010-07-28 02:46

Message:
Try attached patch for linux-2.6.11-ssi.

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Comment By: Nobody/Anonymous (nobody)
Date: 2010-07-27 17:30

Message:
mmm, if that is the case then the init script is broken - We did a lot of
tracing and it happens right at when udhcpc is called. You should be able
to easily replicate the situation by making sure the node you're adding has
no static IP entry and you have udhcpc installed and added to
/etc/mkinitrd/exe. Those are the conditions you require to have the init
script call udhcpc.
You can also see from the log that udhcpc does successfully start, but
must explode somewhere within itself and cause init to die. I'm wondering
if there isn't some dependency that we're missing for udhcpc?
I also noticed that busybox is installed, but not used? Should we be using
a busybox environment instead?

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Comment By: John Hughes (hughesj)
Date: 2010-07-27 11:09

Message:
(by looks dodgy I mean it looks like we're trying to do some cluster stuff
before the cluster is initialised).

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Comment By: John Hughes (hughesj)
Date: 2010-07-27 11:09

Message:
It's crashing maybe at at a call to kmem_cache_alloc

The call trace is
sys_select -> do_select -> ssidev_poll_cli_alloc -> BANG!

Looks dodgy.

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Comment By: djdoomsday (djdoomsday)
Date: 2010-07-27 07:04

Message:
Unfortunately I'm unable to get the exact error as I don't know how to dump
the panic to any sort of log. I have patched together as many frames of a
captured video session of it here: http://i32.tinypic.com/2rw5h5y.jpg

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Comment By: John Hughes (hughesj)
Date: 2010-07-27 06:19

Message:
"Whenever we attempt to use the ssi-addnode-dynamic all nodes booting will
kernel panic"

What panic?

"On an unrelated note - Is this the right place to post?"

This is the right place to report bugs.  If you have questions about using
OpenSSI check the openssi-users mailing list. for development check the
developers mailing list.

For general info check the website http://www.openssi.org


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Comment By: djdoomsday (djdoomsday)
Date: 2010-07-27 00:36

Message:
We've tried a many multitude of things such as another DHCP client, a newly
compiled version of udhcpc, the version of udhcpc within the latest
busybox, etc to no avail. Has anyone had any success with addnode-dynamic?

On an unrelated note - Is this the right place to post? It has been
difficult to find where this community hands out.

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