On Sat, February 24, 2018 4:05 pm, Stefan Sperling wrote: > On Sat, Feb 24, 2018 at 03:21:14PM -0500, trondd wrote: >> Went back to HEAD and reporduced the problem immediatly. Applied the >> patch and >> that seems to fix it. Running the patch without IWM_DEBUG for now to >> verify >> stability. > >> Feb 24 14:42:07 portabsd /bsd: iwm0: 0000001C | hcmd > > This "host command" code is the command used to transmit a frame: > > #define IWM_TX_CMD 0x1c > > So it seems the firmware is crashing during an attempt to send a frame > while a background scan is in progress. > It's unclear why this is happening. It could be a firmware bug, or it > could be misuse of the firmware's API by the driver. > > Your observation that my diff fixes it means that setting the SSID of a > an AP in the background scan command is somehow related to this crash. > > One possibility is that a firmware upgrade could fix this. > But in any case, setting the SSID during a background scan is not > necessary. > So if my diff works, we can just commit it and stop worrying about the > firwmare's problems. >
It's been running without any problems all day. Thanks Stefan. Tim.
