[ The long CC list I got via ./scripts/get_maintainer.pl ]

Hi,

with yesterday's linux-next (next-20110406) I discovered first time
network problems.
Today's next-20110407 shows the same symptoms.
In my IRC client the connection via SSL-encryption to freenode and
oftc are not established.
Also, I saw "stalls" on websites in firefox.

Luckily, next-20110405 was OK, so I started to look at the
net-next-2.6 merge and its commits.
( Furthermore, I tested a 2.6.39-rc2 vanilla kernel to ensure the
problem comes from linux-next patch. )

By reverting all 10 commits my system worked as expected, here the list:

0001-Revert-net-Allow-no-cache-copy-from-user-on-transmit.patch
0002-Revert-bridge-range-check-STP-parameters.patch
0003-Revert-bridge-allow-creating-bridge-devices-with-net.patch
0004-Revert-bridge-allow-creating-deleting-fdb-entries-vi.patch
0005-Revert-bridge-add-netlink-notification-on-forward-en.patch
0006-Revert-bridge-split-rcu-and-no-rcu-cases-of-fdb-look.patch
0007-Revert-bridge-track-last-used-time-in-forwarding-tab.patch
0008-Revert-bridge-change-arguments-to-fdb_create.patch
0009-Revert-pkt_sched-QFQ-quick-fair-queue-scheduler.patch
0010-Revert-xen-netfront-assume-all-hw-features-are-avail.patch

In a next run, I started with only
"0001-Revert-net-Allow-no-cache-copy-from-user-on-transmit.patch".
It turned out that this is the culprit commit.
( I have not played with the new ethtool option tx-nocache-copy in
"BROKEN" kernel. )

My wificard is an Atheros ath5k.
I attached my kernel-config and the revert-patch which makes the
system stable again.

Can you have a look at it?

I you want me to help with debugging, please give me precise instructions.

Regards,
- Sedat -