Re: kern/56701: paninc on ufs2 while running on QEMU 6.2.0

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/56701; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56701: paninc on ufs2 while running on QEMU 6.2.0
Date: Mon, 14 Feb 2022 22:27:00 +0000

 On Mon, Feb 14, 2022 at 08:55:01AM +0000, Martin Husemann wrote:
  > The following reply was made to PR kern/56701; it has been noted by GNATS.
  >  This is probably totaly unrelated to ffs code.
  >  My guess is random memory corruption.
  >  
  >  Could be cause by:
  >   - a bug in qemu
  >   - some random NetBSD kernel bug
  >  
  >  Also note that we heavily use Qemu to test i386 builds in our automatic
  >  test setup, and we have not seen this issue there.
 
 My guess would be a 32-bit issue in the virtio disk code, since that's
 probably rarely used with 32-bit kernels.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost