Thread (46 messages) 46 messages, 5 authors, 2013-03-29

Re: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) 1.0.0.7 md5/sha1 corrupted using NFS and samba (updated) Version 2

From: Hannes Frederic Sowa <hidden>
Date: 2013-03-24 17:38:03

On Sun, Mar 24, 2013 at 10:22:48AM -0700, Eric Dumazet wrote:
quoted hunk ↗ jump to hunk
What could be tried is to remove the possibility of page spanning.
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 441f5bf..d0f4dd1 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1849,7 +1849,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
 		kfree_skb(skb);
 }
 
-#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768)
+#define NETDEV_FRAG_PAGE_MAX_ORDER 0
 #define NETDEV_FRAG_PAGE_MAX_SIZE  (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER)
 #define NETDEV_PAGECNT_MAX_BIAS	   NETDEV_FRAG_PAGE_MAX_SIZE
Doesn't change anything. :(

We tested it on a v3.8 kernel so I changed the definition in
net/core/skbuff.c. I hope this doesn't change the outcome.

Btw, reports about this bug are dating back to 2008 so I don't think
that a recent change in the kernel broke it.

Thanks,

  Hannes
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help