From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Date: Mon, 26 Dec 2011 23:25:29 +0100 Subject: [ath9k-devel] AR9485 on acer one d257 disconnects and hangs very often (ath: Failed to stop TX DMA!) Message-ID: <4EF8F459.2010606@gmail.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, I've bought a new Acer One D257 with AR9485 as wireless card, I run Debian Squeeze and I can't find a way to use it. In fact, very often the connection hangs and the wireless device becomes totally frozen; there is nothing I can do to avoid reboot to make it working again. In dmesg output, I find lots of lines like these ones: ath: Failed to stop TX DMA in 100 msec after killing last frame ath: Failed to stop TX DMA! ath: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff ath: Could not stop RX, we could be confusing the DMA engine when we start RX up ath: Chip reset failed ath: Unable to reset channel (2467 MHz), reset status -22 ath: Unable to set channel ath: Failed to stop TX DMA in 100 msec after killing last frame ath: Failed to stop TX DMA! If I try to rmmod the aht9k module and insert it again, i find these lines: ath9k Refused to change power state, currently in D3 ath: Couldn't reset chip ath: Unable to initialize hardware; initialization status: -5 I've this problem with all these kernels: - kernel 2.6.32 from Debian Squeeze - kernel 2.6.39 from Debian Squeeze-Backports - kernel 3.1.6 compiled by me from the source of kernel.org, with the same config of original Debain 3.1 kernel Disabling ipv6, bluetooth and nohwcrypt option in module has no effect. Using wicd or network-manager is the same. What else can I do? Please give me some infos about it... Thanks, Paolo -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20111226/4003a840/attachment.htm