lkml.org 
[lkml]   [2008]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subjectpull request: wireless-2.6 2008-09-24
Dave,

One more for 2.6.27 -- a fix for a possible interrupt storm. There is
even a link in the commit log to a youtube video of the storm in
progress. :-)

Let me know if there are problems!

John

---
Individual patch is available here:

http://www.kernel.org/pub/linux/kernel/people/linville/wireless-2.6/

---
The following changes since commit 4c07ab0fe4b4eaa0fc31f640ca65da7c173f5043:
David S. Miller (1):
Merge branch 'master' of git://git.kernel.org/.../linville/wireless-2.6

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master

Luis R. Rodriguez (1):
ath9k: disable MIB interrupts to fix interrupt storm

drivers/net/wireless/ath9k/core.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath9k/core.c b/drivers/net/wireless/ath9k/core.c
index c049593..87e37bc 100644
--- a/drivers/net/wireless/ath9k/core.c
+++ b/drivers/net/wireless/ath9k/core.c
@@ -795,6 +795,12 @@ int ath_open(struct ath_softc *sc, struct ath9k_channel *initial_chan)
if (ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)
sc->sc_imask |= ATH9K_INT_CST;

+ /* Note: We disable MIB interrupts for now as we don't yet
+ * handle processing ANI, otherwise you will get an interrupt
+ * storm after about 7 hours of usage making the system unusable
+ * with huge latency. Once we do have ANI processing included
+ * we can re-enable this interrupt. */
+#if 0
/*
* Enable MIB interrupts when there are hardware phy counters.
* Note we only do this (at the moment) for station mode.
@@ -802,6 +808,7 @@ int ath_open(struct ath_softc *sc, struct ath9k_channel *initial_chan)
if (ath9k_hw_phycounters(ah) &&
((sc->sc_opmode == ATH9K_M_STA) || (sc->sc_opmode == ATH9K_M_IBSS)))
sc->sc_imask |= ATH9K_INT_MIB;
+#endif
/*
* Some hardware processes the TIM IE and fires an
* interrupt when the TIM bit is set. For hardware
--
John W. Linville Linux should be at the core
linville@tuxdriver.com of your literate lifestyle.

\
 
 \ /
  Last update: 2008-09-25 01:21    [from the cache]
©2003-2011 Jasper Spaans