Re: kern/52462: aac driver (and possibly others) needs MPification

[Michael van Elst <mlelstv%serpens.de@localhost>]

The following reply was made to PR kern/52462; it has been noted by GNATS.

From: Michael van Elst <mlelstv%serpens.de@localhost>
To: Havard Eidnes <he%NetBSD.org@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/52462: aac driver (and possibly others) needs MPification
Date: Tue, 8 Aug 2017 17:58:18 +0200

 On Tue, Aug 08, 2017 at 02:58:16PM +0200, Havard Eidnes wrote:
 > >  Ok. For the next try: remove the patch and simply declare ld as non-mpsafe
 > >  by removing the D_MPSAFE flags.
 > 
 > OK, did that with
 
 > and now the machine behaves as it should, and no longer panics or
 > wedges.
 
 Good.
 
 http://ftp.netbsd.org/pub/NetBSD/misc/mlelstv/ld.diff
 
 is a patch that takes KERNEL_LOCK when calling into the backend
 (hopefully without the locking order violation), except for
 i2o,cac,nvme,virtio and sdmmc which are tagged as safe.
 
 
 Greetings,
 -- 
                                 Michael van Elst
 Internet: mlelstv%serpens.de@localhost
                                 "A potential Snark may lurk in every tree."