Starting with backports-20150511, and continuing with backports-20150525, we see frequent system hangs. backports-20150424 had no issue. After the freeze, the console is non-responsive, as well as the network stack (ssh/ping does not work). Using sysrq, I can see log messages continuing from ath10k_pci after the freeze, along with some other threads as well. mac80211/ath10k/cfg80211 are the only modules in use from backports, so it seems like a deadlock could possibly be with mac80211 or ath10k. LOCKDEP didn't reveal anything. Using a 3.2.26 kernel on ARM. AP mode. No encryption. I've collected ftrace events for sched mac80211 net napi cfg80211 workqueue, which are included in the dmesg you can find here because of its size: http://tinyurl.com/dmesg-ftrace In the logs, the last timestamp that my test script wrote is: [ 1021.291495] hbeat0352 I've captured ftrace events before and after 1021.291495. Thanks, Marty Faltesek Google Fiber -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
