kern/148655: [zfs] Booting from a degraded raidz no longer works in 8-STABLE [regression]

[Martin Matuska]

The following reply was made to PR kern/148655; it has been noted by GNATS.

From: Martin Matuska <mm at FreeBSD.org>
To: bug-followup at FreeBSD.org, Andriy Gapon <avg at icyb.net.ua>
Cc:  
Subject: Re: kern/148655: [zfs] Booting from a degraded raidz no longer works
 in 8-STABLE [regression]
Date: Thu, 05 Aug 2010 10:19:37 +0200

 I can confirm this behaviour, easily reproducable in virtualbox.
 
 The problem must be in the internal logic of zfsboot, because the lba
 errors reported are from function:
 
 drvread() in sys/boot/i386/zfsboot/zfsboot.c, line #1079:
     if (V86_CY(v86.efl)) {
         printf("error %u lba %u\n", v86.eax >> 8 & 0xff, lba);
         return -1;
     }
 
 drvread() is called from vdev_read() (line #315)