Mailinglist Archive: opensuse-bugs (5928 mails)
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[Bug 668194] dhcp client not working properly in Xen domU due to partial checksum offload
- From: bugzilla_noreply@xxxxxxxxxx
- Date: Thu, 24 Feb 2011 09:18:59 +0000
- Message-id: <20110224091859.6D8A7CC7D5@soval.provo.novell.com>
https://bugzilla.novell.com/show_bug.cgi?id=668194
https://bugzilla.novell.com/show_bug.cgi?id=668194#c28
Jan Beulich <jbeulich@xxxxxxxxxx> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
InfoProvider|jdouglas@xxxxxxxxxx |
--- Comment #28 from Jan Beulich <jbeulich@xxxxxxxxxx> 2011-02-24 09:18:57 UTC
---
Very likely (though I'm not a networking expert at all). In 11.4 (further
improved subsequently [2.6.38-rc, not yet committed] following a recent
discussion on netdev, with a possibility of pulling this back into 11.4 once
sufficiently verified) I sync-ed checksum behavior with what pv-ops has been
doing for a while, which particularly results in
if (rx->flags & NETRXF_csum_blank)
skb->ip_summed = CHECKSUM_PARTIAL;
else if (rx->flags & NETRXF_data_validated)
skb->ip_summed = CHECKSUM_UNNECESSARY;
else
skb->ip_summed = CHECKSUM_NONE;
replacing the cited code sequence in netfront.
So testing with the current 11.4 kernel in Dom0 and DomU-s would certainly be
quite helpful.
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