On Sun, Oct 03, 2021 at 09:35:37AM +0200, Landry Breuil wrote: > Hi, > > i've been having iwm(4) instability on a X1 Gen3 issues since july > (symptom/reproducer: unable to fetch base70.tgz, stalls after 100Mb and link > goes down, ifconfig up/down/reassoc 'resolves' it - pkg_add -u also fails > after > a while, erratic ping, etc..) - tried forcing 2Ghz/5Ghz modes but that doesnt > help on this laptop (forcing 5Ghz 'solves' a similar issue on a T470s but > i dont remember the hw rev/model right now). > > iwm0 at pci2 dev 0 function 0 "Intel AC 7265" rev 0x59, msi > iwm0: hw rev 0x210, fw ver 17.3216344376.0 > > bisected kernels and found out that > 6.9-current (GENERIC.MP) #120: Thu Jul 8 23:45:06 MDT 2021 > was okay and > 6.9-current (GENERIC.MP) #122: Fri Jul 9 16:29:05 MDT 2021 > wasnt, which narrowed the regression around the switch to newer firmware > version 29. (eg > https://github.com/openbsd/src/commit/6a5f473d46d947cc596b5dbde0c8b074f6a98723) > - on july 20 there's been > https://github.com/openbsd/src/commit/b57370d64c440d7c4d5594a677fb066e3786fbfc > too. > > so iwm-7265D-29 firmware doesnt work on this revision of hardware on > this laptop (mpi@ has been seeing the same issues on a similar X1 gen3) > but forcing the use of the older firmware 'solves' it. As stsp@ told me, > the same hardware revision works in another laptop with the newer > firmware... > > anyway, the diff below from stsp@ gives me a working iwm(4) on -current:
Same device here with the same instabilities. I never got around to bisecting the problem but using an older firmware does indeed get rid of the instabilities.
