On Wed, Feb 29, 2012 at 9:25 PM, Grumbach, Emmanuel
<emmanuel.grumbach@xxxxxxxxx> wrote:
>> Hi Emmanuel,
>>
>> was debugging some issue in ath9k with UDP bidirectional traffic and
>> then used my inbuilt iwlwifi with bidirectional UDP had this warnings
>>
>> * iwlagn_mac_ampdu_action->iwlagn_tx_agg_start -> (we take spinlock
>> 'sta_lock' ) -> iwl_trans_tx_agg_alloc (which has might_sleep)
>> * iwlagn_mac_ampdu_action->iwlagn_tx_agg_stop -> (we take spinlock
>> 'sta_lock' ) -> iwl_trans_tx_agg_disable (which has might_sleep)
>>
> So I was hoping that nobody would hit that one before we push the next batch of patches that includes the fix for this (courtesy of Johannes). In vain.
> Sorry, this is stupid bug: iwl_trans_tx_agg_{alloc,disable} must be atomic...
oh ok , thanks.
--
thanks,
shafi
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