Here is a text/plain version of mail since the mail gateway at kernel.org does not accept any html mail. -- wzyboy ---------- Forwarded message ---------- From: wzyboy Date: 2013/11/4 Subject: Re: [Ilw] Intel Wireless 7260 hardware timed out randomly To: "Grumbach, Emmanuel" Cc: "ilw@linux.intel.com" , "linux-wireless@vger.kernel.org" Hi, thanks for your quick reply. On receiving your email 23 hours ago, I set that option in modprobe and rebooted my laptop. It works fine till just now when that bug occurs again when I was just viewing some man-page. Then I have to reboot my laptop to bring network back alive, in order to reply you this email :-) I've attached the lasted systemd journal, it seems a little different from yesterday's dmesg log... Could you take a look at it? And I found that every time I boot up my laptop there is a little line of message like: Nov 04 17:07:36 xenien kernel: iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control Does it have something to do with the bug? Though this bug only occurs at a frequency of ~1 per day but it's somewhat unexpected and annoying... ;-( Sincere regards. -- wzyboy 2013/11/3 Grumbach, Emmanuel > > > > Hi, there. > > > > I am encountering some bugs with iwlwifi.ko in Linux 3.11.6. > > > > My laptop is a ThinkPad X240s with Network controller Intel Corporation > > Wireless 7260 (rev 6b). I have Arch Linux with kernel 3.11.6 installed on it. The > > wireless works out-of-box, thanks for your work! > > > > However, after using wireless for some time (could be either an hour with > > normal web page browsing, or several hours with heavy Internet > > downloading), the wireless works abnormally. The sympton is that every > > connection get lost, and the hardware "timed out" when I try to take down > > or take up the interface with `ip link set wlan0 down' or `ip link set wlan0 up'. > > When this bug occurs, even reloading the kernel modules (with `modprobe') > > could not bring the wireless back alive. What I could only do is to reboot the > > laptop. > > > > After encountering this bug for several times, I found something useful in > > `dmesg', as I've attached. Please take a look at the log and find out then > > squash this bug. > > > > How easily can you reproduce the bug? > Can you please try to see if this work around can help? > Add > options iwlmvm power_scheme=1 > > in a .conf file under /etc/modprobe.d/ > > Thanks. >