Re: current mainline ide doesn't like qemu/kvm (or vice versa)

From: Alan Cox
Date: Fri Feb 08 2008 - 11:00:33 EST


On Fri, 8 Feb 2008 16:25:08 +0100
Christoph Hellwig <hch@xxxxxx> wrote:

> When trying to put some stress on qemu by running the xfs testsuite
> I get the following:
>
> debian:~/xfs-cmds/xfstests# sh check
> [ 438.166822] SGI XFS with ACLs, security attributes, realtime, large block numbers, no debug enabled
> [ 438.185557] SGI XFS Quota Management subsystem
> [ 438.193150] hdb: task_no_data_intr: status=0x41 { DriveReady Error }
> [ 438.194018] hdb: task_no_data_intr: error=0x04 { DriveStatusError }
> [ 438.194195] ide: failed opcode was: 0x9d

Drive aborted the command. Thats all correct.
>
> and after that the kernel seems to hang. Qemu is emulating a piix3
> device, and using the piix driver. This is on a pretty old kvm (version
> 28) because newer ones don't even compile.

Old Qemu is not really a credible IDE emulation. The chances are that as
with all the libata bugs I close for qemu the problem is qemu. Please
file a bug with the qemu people.
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