Re: kern/59727: wsmux changes broke kqueue

["Martin Husemann via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/59727; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: hans%NetBSD.org@localhost
Subject: Re: kern/59727: wsmux changes broke kqueue
Date: Fri, 21 Nov 2025 20:43:45 +0100

 Any update on this?
 
 Nia, could you undo that hunk (like below) and run a ktrace of your
 reproducer?
 
 Martin
 
 Index: wsmux.c
 ===================================================================
 RCS file: /cvsroot/src/sys/dev/wscons/wsmux.c,v
 retrieving revision 1.68
 diff -u -p -r1.68 wsmux.c
 --- wsmux.c	7 Apr 2025 11:18:44 -0000	1.68
 +++ wsmux.c	21 Nov 2025 19:42:58 -0000
 @@ -589,7 +589,12 @@ wsmuxkqfilter(dev_t dev, struct knote *k
  		return (1);
  	}
  
 -	KASSERTMSG(sc->sc_base.me_evp == NULL, "wsmuxkqfilter: not open\n");
 +	if (sc->sc_base.me_evp == NULL) {
 +#ifdef DIAGNOSTIC
 +		printf("wsmuxkqfilter: not open\n");
 +#endif
 +		return (1);
 +	}
  
  	return (wsevent_kqfilter(sc->sc_base.me_evp, kn));
  }