From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kostas Nakos Date: Thu, 12 Feb 2009 13:19:42 +0200 Subject: [ath9k-devel] Kernel panic + HT question Message-ID: <499405CE.5020205@inaccessnetworks.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Hello list, I have a pair of ath9k wireless adapters. One of them is on a powerpc-based board, with compat-wireless cross compiled, acting as an AP with hostapd; the other one is on a x86 pc using a mini-pci to pci card, also running compat-wireless. Both cards are identical, as ath9k reports the following info: phy0: Atheros AR9160 MAC/BB Rev:1 AR5133 RF Rev:b0: The host and the station run the 2.6.28 kernel. The host (powerpc) has compat-wireless-20090205 while the client (pc) has compat-wireless-20090211. The client connects and works OK when the AP is set to use channel 9 and ieee80211n=1 in hostapd. When we additionally supply ht_capab=[HT40-] to hostapd, the client crashes with a kernel panic. Please find attached: messages.txt which contains the panic message of such a crash from /var/log/messages, and ath9kcrash.txt which contains the first few functions as reported in such a crash in the console of the pc and written down by hand by me. If it is any help, searching around, as this issue has been around for at least a month in compat-wireless, I stumbled upon a similar bug report here: https://bugzilla.redhat.com/show_bug.cgi?id=472372 which John has marked as a duplicate bug. As an aside, it'd be nice to know if such a setup can achieve actual tx/rx rates that are in the neighborhood of 11n, e.g. greater than g speeds, using the setup we have: 2xath9k+hostapd+wpa_supplicant. I may be jumping the gun here, but we've been trying to test for this the last month and the crashes deter us. Best Regards, Kostas -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: messages.txt Url: http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20090212/e627d842/attachment.txt -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: ath9kcrash.txt Url: http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20090212/e627d842/attachment-0001.txt