Re: kern/52895 (kernel assertion failure in iwm driver (NetBSD-8 amd64))

[Alexander Nasonov <alnsn%yandex.ru@localhost>]

The following reply was made to PR kern/52895; it has been noted by GNATS.

From: Alexander Nasonov <alnsn%yandex.ru@localhost>
To: Mustafa Dogan <dogan%tesmer.org.tr@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, ozaki-r%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost,
	gnats-admin%netbsd.org@localhost, maya%netbsd.org@localhost, bsiegert%netbsd.org@localhost
Subject: Re: kern/52895 (kernel assertion failure in iwm driver (NetBSD-8
 amd64))
Date: Wed, 10 Jan 2018 09:25:38 +0000

 Mustafa Dogan wrote:
 > Hi,
 > I compiled new GENERIC kernel with patch you provided. My laptop booted
 > without problem. Kernel seems OK.
 > My first findings and improvements:
 > - Before, "ifconfig iwm0 list scan" wasn't work and gives an error
 > message. Now, list scan still doesn't work, doesn't give error, but adds to
 > dmesg "iwm0: fatal firmware error" message.
 > - Before, wpa_supplicant were associate with ~1 min or more latency. Now
 > association is in ~5 sec.
 > - iwm connects to network without problem.
 > Thanks,
 > Mustafa
 
 I haven't tried the new patch but I can tell how iwm0 worked for me for
 the past two years or so.
 
 - list scan works without problems (I don't use it very often, though)
 - wpa_supplicant connects instantly to my home network but it can take
   minutes to connect to iPhone hotspot
 - 'firmware error' or similar messages can appear when my laptop is
   booting with a pretty low probability (< 1-2%)
 - probability of hitting those errors increases significantly if
   I keep the laptop up for more than a day
 - weak signal increases the probability
 
 It crashed once (see kern/52583: kernel crash after iwm firmware error)
 recently, I don't remember any other crashes.
 
 My hw/fw are:
 
 iwm0: hw rev 0x210, fw ver 22.361476.0
 
 -- 
 Alex