Hi Sujith, I'm investigating driver code in these days, but it seems no big progress. I hope can find a workaround to reset everything in driver (hw queue ...) , then if see the error case, we can recover it except reload driver module. Do you have any suggestion?
BTW: on my side, it is easy to reproduce the problem with "debug=0x200" (running hostapd and terminate it, start wpa_supplicant for scanning, kill it after scan and restart hostapd. Repeat and repeat...). Highly appreciate your help! Looking forward your feedback! Thanks, -Joe -----Original Message----- From: ath9k-devel-boun...@lists.ath9k.org [mailto:ath9k-devel-boun...@lists.ath9k.org] On Behalf Of Joe Qiao Sent: Thursday, February 13, 2014 11:01 AM To: Sujith Manoharan Cc: ath9k-devel@lists.ath9k.org; Bryan Phillippe Subject: Re: [ath9k-devel] How to solve the problem of "Failed to stop TX DMA" Hi Sujith, I got a duplication when use "debug=0x200", debug log is attached. The line 372 shows the error log. [ 1809.636327] ath: phy0: Failed to stop TX DMA, queues=0x001! Thanks, -Joe -----Original Message----- From: Sujith Manoharan [mailto:suj...@msujith.org] Sent: Wednesday, February 12, 2014 11:21 PM To: Joe Qiao Cc: ath9k-devel@lists.ath9k.org; Bryan Phillippe Subject: RE: [ath9k-devel] How to solve the problem of "Failed to stop TX DMA" Joe Qiao wrote: > After several days stress test for the ath9k driver 2014-01-17 and > 2014-01-31, I still can see the below error log. But less than before > (v3.13) I think, sometimes 1 log in one or two days, sometime no error log. > > [155943.839310] ath: phy0: Failed to stop TX DMA, queues=0x001! > > However, the strange is that, the error log only can see in the driver > without debug option. When I run the driver which enable debug option, > test always running for 3~4 days, 100MB+ log file record in a day, I > can't find similar error log "Failed to stop TX DMA". Hard to debug things when we don't have debug log information. ;) Can you lower the debug level and use "debug=0x200" ? This will give us at least some information when/if the issue happens. Sujth _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
