Re: kern/52056: mount -u / causes a kernel assertion

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

The following reply was made to PR kern/52056; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/52056: mount -u / causes a kernel assertion
Date: Fri, 10 Mar 2017 09:38:12 +0100

 On Thu, Mar 09, 2017 at 10:35:02PM +0000, Jaromír Dole?ek wrote:
 >  I suspect something is still not quite right with the ro/rw switch
 >  after recent changes. Juergen, any idea? Perhaps having the filesystem
 >  mounted async might possibly trigger some arcane flow?
 
 I have not mounted it async:
 
 /dev/wd0a on / type ffs (log, local)
 
 but maybe important: this is a shark, ancient IDE interface, very slow
 disk access:
 
 wdc0 at ofisa0 (ide@i1f0)
 wd0 at atabus0 drive 0
 wd0: <SAMSUNG HM120IC>
 wd0: drive supports 16-sector PIO transfers, LBA48 addressing
 wd0: 111 GB, 232581 cyl, 16 head, 63 sec, 512 bytes/sect x 234441648 sectors
 wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
 boot device: wd0
 root on wd0a dumps on wd0b
 
 and I think it is doing all IO in "PIO mode 4".
 
 Martin