Maybe we don't have the same issue, but today this one solved it for me: `rmmod iwlmvm; rmmod iwlwifi; modprobe iwlwifi`. Well, kind of. It couldn't really connect to any network afterwards, but after another such dance it was finally back to normal. The device disappears from iwconfig for me when this happens, so it is easy to detect and correct with few lines of shell. It can also be gone from lspci as well. Another alternative would be to set up a syslog-ng program destination triggered by a patterndb sample matching the noted failures among the kernel messages. If it gets stuck without a visible sign, you could watch Inactive time and tx failures in `iw dev wlan0 station dump` increase sharply in case of issues. If you need a bit more reliability, it is easy to ping the AP or gateway every second and refresh the connection in case of too many consecutive missing replies. On Mon, Jun 24, 2019 at 11:36 PM Balakrishnan Balasubramanian <linux-wireless-list@xxxxxxxx> wrote: > > Thanks for the tip. In my system the path to remove was below: > > /sys/devices/pci0000:00/0000:00:1c.2/0000:02:00.0/remove > Also symlinked here: > /sys/module/iwlwifi/drivers/pci:iwlwifi/0000:02:00.0/remove > > I am now able to restore internet without system restart. Now I need to find a > way to do this automatically whenever internet goes down. > > Thanks, > Bala > > On Sunday, June 23, 2019 5:08:32 AM EDT b.K.il.h.u+tigbuh@xxxxxxxxx wrote: > > devices/ is probably just a symlink. Try to find it manually: > > find /sys -iname remove > > lspci > > > > The interesting thing is that my iwlwifi card started to do the same > > thing just recently (some weeks ago). However, I do suspend a lot and > > it only happens after resuming, but not after every resume (maybe > > 5-10%). It always came back after restarting except on one day when it > > needed three restarts, so maybe mine would be more about needing to > > reseat the card. > > > > > On Fri, Jun 14, 2019 at 4:54 AM Balakrishnan Balasubramanian <linux- > wireless-list@xxxxxxxx> wrote: > > >> The issue occured again today. I tried to restart the module > > >> > > >> > echo 1 > /sys/module/iwlwifi/devices/0000\:02\:00.0/remove > > >> > > >> There is no folder 'devices' > > >> > > >> zadesk% ls /sys/module/iwlwifi > > >> coresize drivers holders initsize initstate notes parameters > > >> refcnt > > >> sections srcversion taint uevent > > >> > > >> > echo 1 > /sys/bus/pci/rescan > > >> > > >> Attached the error when trying to rescan. > > >> > > >> Thanks, > > >> Bala > > > >
