#12573 HIGH 13.1.0: mwifiex/8787 resume failure with deluge of "mwifiex_sdio_host_to_card: no wr_port available" error messages

Zarro Boogs per Child bugtracker at laptop.org
Thu Mar 14 16:18:53 EDT 2013


#12573: mwifiex/8787 resume failure with deluge of "mwifiex_sdio_host_to_card: no
wr_port available" error messages
---------------------------------+------------------------------------------
           Reporter:  shep       |       Owner:  shep                              
               Type:  defect     |      Status:  new                               
           Priority:  high       |   Milestone:  13.1.0                            
          Component:  kernel     |     Version:  Development source as of this date
         Resolution:             |    Keywords:                                    
        Next_action:  never set  |    Verified:  0                                 
Deployment_affected:             |   Blockedby:                                    
           Blocking:             |  
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Comment(by dsd):

 The first thing I would look at here is the first message.

 {{{
 [  450.302766] mwifiex_sdio mmc0:0001:1: mwifiex_write_data_sync: not
 allowed while suspended
 }}}

 What is mwifiex trying to write while suspended, and why?

 Maybe the upper layers of mwifiex are trying to do some I/O before the
 SDIO layer thinks it is ready. In which case the upper mwifiex layers
 should be fixed to pay attention to the adapter->is_suspended flag and not
 submit their I/O requests until later.

-- 
Ticket URL: <http://dev.laptop.org/ticket/12573#comment:6>
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