| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] USB disk corruption on Xen 4.1.0 & Linux 2.6.38.7
On Tue, May 31, 2011 at 01:07:49PM +0100, Anthony Wright wrote:
> I build Xen 4.1.0 and linux 2.6.38.7 from source to do a DIY system based on
> Linux From Scratch (LFS).
Ok.. Had you tried my #devel/next-2.6.38 branch in the past?
>
> When I try to read from a USB memory stick (around 64M big), I get corruption
> on the latest version of Xen.
So this is from dom0 kernel, right?
>
> With Xen 3.x and linux 2.6.18 I can read the memory stick no problems.
>
> If I use the linux 2.6.38.7 kernel without a Xen hypervisor I can read the
> memory stick without problems.
>
> If I use the same setup, but this time introduce the Xen 4.1.0 hypervisor I
> get random blocks of sectors on the USB disk returning all zeros. Normally
> these blocks change each time I reboot, but are fixed once they've been
> established. On one occasion the blocks changed continuously each time I
> looked at the disk (I have a big file on the USB disk and I run md5sum before
> accessing it).
What is the filesystem on the USB disk?
>
> Just to remove other possibilities I've checked the system's RAM and it's
> fine (I've seen similar problems before with dodgy RAM). If I try to access a
> hard disk or CDROM, everything is fine.
>
> This could be a problem with the way I've built the kernel or Xen, but it
> seems to suggest that there's a bug in Xen.
>
> I'm happy to try to isolate the problem further if it can't be reproduced
> elsewhere. My first suggestion would be to use a known good binary copy of
> xen 4.1.0 and/or linux 2.6.38.7 if anybody can supply one.
<sigh>Please provide serial log or dmesg output.
>
> thanks,
>
> Anthony Wright
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home