On Sat, 15 Aug 2020 11:09:59 +0200 Stefan Sperling <s...@stsp.name> wrote:
> On Sat, Aug 15, 2020 at 09:14:48AM +0100, Julian Smith wrote: > > I'm seeing fairly frequent (e.g. more than daily) failures from an > > iwn0 wireless network device, on a Lenovo X230. > > > > dmesg|grep iwn shows: > > > > iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6205" rev > > 0x34: msi, MIMO 2T2R, MoW, address a4:4e:31:43:f1:60 iwn0: fatal > > firmware error iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: device timeout > > iwn0: device timeout > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > iwn0: device timeout > > iwn0: fatal firmware error > > iwn0: fatal firmware error > > > > Uptime is 6 days, so this is several failures per day on average. > > > > iwn(4) DIAGNOSTICS says that these two types of error 'should not > > happen'. > > > > Is here anything i can do about this? The machine is a Lenovo X230. > > > > Or is there alternative wireless hardware that i install instead > > that is known to be reliable? > > > > Full dmesg is below. My kernel has a patch from visa@ to reduce gdb > > uninterruptible wait problem (see 'gdb in uninterruptible wait' > > thread on misc), but is otherwise vanilla 6.7. > > Could you try -current to see if the issue is still present there? Ok i'll try building a current kernel in the next few days. (Do you know of any changes that could affect iwn?) > > On 6.7, does forcing 11a or 11g mode work around this? For example: > ifconfig iwn0 mode 11g 'mode 11g' doesn't appear to make any difference. 'mode 11a' results in no connection at all. Thanks, - Jules -- http://op59.net
