Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit()

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From: Michael Breuer
Date: Friday, January 8, 2010 - 9:45 pm

On 1/8/2010 4:48 PM, Michael Breuer wrote:
Ok - ran alt1 and alt2, both with MMAP, no DMAR and disable_msi. Both 
seem to behave similarly. No logged errors; large numbers of dropped RX 
packets. One odd thing: when driving every sort of traffic through, I 
was able to hose the client adapter (win7) repeatedly by runnnig the 
win7 backup and connecting Windows Media Player to a Mediatomb stream 
while also running a remote X11 session. Looks like the SSDP traffic 
that occurs at the same time as the SMB traffic and X11 traffic takes 
out the adapter on Win7 - Nforce.
Reran with msi enabled, MMAP and no DMAR. Also no errors; much faster, 
and the Win7 side survives the same conditions that don't work when msi 
is disabled. Doesn't make sense to me, but it is what it is.

Going to leave this up for a while and see if things remain functional.

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Messages in current thread:
[PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 5, 4:07 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Wed Jan 6, 12:22 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Stephen Hemminger, (Wed Jan 6, 2:10 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Stephen Hemminger, (Wed Jan 6, 9:53 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 12:47 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 10:56 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 11:01 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 11:17 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 11:35 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 11:50 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Thu Jan 7, 12:36 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Fri Jan 8, 12:45 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Michael Breuer, (Fri Jan 8, 9:45 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Wed Jan 13, 2:09 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Wed Jan 13, 2:34 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Sun Jan 17, 3:17 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Sun Jan 17, 4:05 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 12:30 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 1:46 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Stephen Hemminger, (Mon Jan 18, 2:00 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 2:06 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 2:25 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 2:50 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 3:08 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 3:17 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Mon Jan 18, 3:40 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Michael Breuer, (Mon Jan 18, 10:46 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 19, 1:41 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 19, 3:47 am)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 19, 12:59 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 19, 1:29 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Jarek Poplawski, (Tue Jan 19, 3:45 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Stephen Hemminger, (Tue Jan 19, 6:10 pm)
Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit(), Michael Breuer, (Thu Jan 21, 12:48 pm)