linux-kernel - Hyper-V storvsc errors with large disk image

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <CAPJ9Yc_rcMVqp17MMAb8aBK_y_tY1D_NjTd_6TJP64LemFZY+A@mail.gmail.com>
Date:	Sun, 9 Dec 2012 20:39:38 +0100
From:	David Balažic <xerces9@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Hyper-V storvsc errors with large disk image

(I'm not subscribed, please CC me)

Hi!

When using huge (13TB) disk images (VHDX, dynamically expanding) with
Hyper-V in Windows 8 Pro and running Linux as guest, I get errors and
hangups when accessing the emulated HD.

dmesg show the following message block looping:

sd 2:0:0:0: [sda]
Sense Key : No Sense [current]
sd 2:0:0:0: [sda]
Add. Sense: No additional sense information
hv_storvsc vmbus_0_1: cmd 0x93 scsi status 0x2 srb status 0x6

I am using the System Rescue CD 3.1.2 alternative 64 bit kernel, uname
-a says: 3.6.9-alt312-amd64

What I do i use parted to create a single partition  and the run
mkfs.ext4 /dev/sda1 on it. the mkfs.ext4 process goes into D+ state
and the mentioned messages start appearing in the kernel log.

Running Window 8 as guest on the same virtual machine works fine, HD
access it without issues.

Bug in the storsvc driver?

Regards,
David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/