On 05/07/2012 06:29 AM, Johannes Berg wrote:
On Mon, 2012-05-07 at 09:55 +0200, Arend van Spriel wrote:
On 05/07/2012 08:34 AM, Johannes Berg wrote:
On Sun, 2012-05-06 at 18:30 -0500, Larry Finger wrote:
Hi,
I am getting the following warning from the latest wireless-testing system:
------------[ cut here ]------------
WARNING: at net/mac80211/iface.c:162 ieee80211_check_queues+0x119/0x130
[mac80211]()
if (WARN_ON_ONCE(sdata->vif.hw_queue[i]>= n_queues))
The warning is triggered for i, n_queues, and sdata->vif.hw_queue[i] all equal to 1.
Is this a driver with just a single queue by any chance? I never tested
that and probably forgot to set those up correctly.
The bug report Larry mentions is with iwlwifi driver:
pci, iwlwifi, NETWORK, Centrino Wireless-N 130 BGN
No, the bug report says rtl8187, the user said this happened when
plugging in the USB device.
I think this will fix it:
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -206,8 +206,10 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
for (i = 0; i< IEEE80211_NUM_ACS; i++) {
if (local->hw.flags& IEEE80211_HW_QUEUE_CONTROL)
sdata->vif.hw_queue[i] = IEEE80211_INVAL_HW_QUEUE;
- else
+ else if (local->hw.queues>= IEEE80211_NUM_ACS)
sdata->vif.hw_queue[i] = i;
+ else
+ sdata->vif.hw_queue[i] = 0;
}
sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
}
Yes, this patch fixes the problem.
Reported-and-Tested-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Once you post the patch, I will update that entry at bugzilla.redhat.com.
Thanks,
Larry
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