NetBSD Problem Report #45512
From www@NetBSD.org Sat Oct 22 22:45:58 2011
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Date: Sat, 22 Oct 2011 22:45:57 +0000 (UTC)
From: ppedaal@mail.ee
Reply-To: ppedaal@mail.ee
To: gnats-bugs@NetBSD.org
Subject: net/aoe-vblade is unable to use block devices
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>Number: 45512
>Category: pkg
>Synopsis: net/aoe-vblade is unable to use block devices
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: pkg-manager
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Oct 22 22:50:00 +0000 2011
>Originator: Mihkel Ader
>Release: NetBSD-current
>Organization:
>Environment:
NetBSD ubin 5.99.56 NetBSD 5.99.56 (MYGENERIC) #0: Thu Oct 20 19:07:41 UTC 2011 root@ubin:/usr/src/sys/arch/macppc/compile/MYGENERIC macppc
>Description:
When trying to serve a block device using vblade(d), the disk size is reported as 0 and the AoE device cannot be used. Also, larger devices cause the disk size calculation to overflow.
PS
The errors have also been reported to the aoetools-discuss mailing list
>How-To-Repeat:
vblade 0 0 gem0 /dev/wd0c
>Fix:
There's a (de)referencing error in the freebsd.c file. The easiest fix is to write the ioctl call as "ioctl(fd, DIOCGDINFO, &lab)" instead of "ioctl(fd, DIOCGDINFO, lab)"
In the same file, we need a cast to prevent an overflow:
"size = (vlong)lab.d_secsize * lab.d_secperunit"
(Contact us)
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