Re: kern/57561: iwm device timeouts

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR kern/57561; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/57561: iwm device timeouts
Date: Wed, 9 Aug 2023 08:01:47 +0200

 [please reply to gnats-bugs, do not mail netbsd-bugs directly, and make
 sure to keep the subject formatted properly]
 
 I don't understand two things:
 
  - why do you consider a TX queue "getting stuck" not a serious issue?
    Are the queues just blocked for longer than our single watchdog
    expects? Do they recover later? How fast?
 
  - why does the reset of the interface cause loss of network connection?
    (sounds like a serious issue in the driver reset code, probably not
    syncing current queue pointers with the hardware or something like
    that) - independent of the issue you see, this bug needs to be fixed.
 
 This sounds like several bugs and your patch just papering over it.
 Maybe (in the end) it is the best way forward, but it should be analyzed
 in more detail.
 
 Martin