+++ This bug was initially created as a clone of Bug #217930 +++ Description of problem: Add support for netdump to the 8139cp driver. Having the ability to netdump off of this driver will allow fully virtualized RHEL-4 guests to dump core over the network. Given that we don't have any other currently working solution for dumping core on fully virtualized guests, this is the simplest way to add this functionality. I currently have a patch that seems to enable netdump functionality (at least, service netdump starts), and can dump the dmesg over the network, but does not work for dumping the memory pages. Work is in progress.
I agree that this is imporant for completeness of our Virt solution and we are doing it for 3.9... Is there any chance to get this done by the freeze date 2007-01-08?
It's possible that we can get this done, although it has been very un-cooperative so far. I'll do some more work on it this week and see if I can get it working before the deadline. Chris Lalancette
Created attachment 144841 [details] Preliminary patch to add netdump support to 8139cp driver This is my preliminary patch to get 8139cp netdump running for RHEL-4. I'm still testing it, but it looks good so far.
By the way, the upstream commit that fixed the original problem I was having is here: http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=d15e9c4d9a75702b30e00cdf95c71c88e3f3f51e That, combined with my modifications, seems to make it work.
Created attachment 145057 [details] Second try for 8139cp netpoll patch
Created attachment 145058 [details] Second try for 8139cp netpoll patch
committed in stream U5 build 42.40. A test kernel with this patch is available from http://people.redhat.com/~jbaron/rhel4/
Don Domingo, We probably want to change this release note to be something like: <quote> 8139cp networking driver now supports netdump - this enables fully virtualized RHEL-4 Xen guests to netdump </quote> Chris Lalancette
QE ack for RHEL4.5.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0304.html