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[Xen-devel] [PATCH]Fix the ide/cdrom emulation error on FC7 guest
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH]Fix the ide/cdrom emulation error on FC7 guest |
| From: | "Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx> |
| Date: | Tue, 22 Jan 2008 12:34:38 +0800 |
| Delivery-date: | Mon, 21 Jan 2008 20:35:10 -0800 |
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| Thread-index: | AchcsBj5alXDcM1SQu+IT5XrtZNiig== |
| Thread-topic: | [Xen-devel] [PATCH]Fix the ide/cdrom emulation error on FC7 guest |
The new libata-eh in the Linux kernel is throwing a fit over the QEMU cdrom device for two reasons: 1) DRQ can be set with ERR_STAT set. This is a violation of the ATAPI state machine. 2) After a TEST_UNIT_READY ATAPI command is sent ERR_STAT is getting set which is correct. But, when the OS issues another ATAPI command ERR_STAT is still set. Which is bad since the next expected command from the OS is REQUEST_SENSE to find out why ERR_STAT is set. bug this fixes: https://bugzilla.novell.com/show_bug.cgi?id=291775 Signed-off-by: Brandon Philips <bphilips@xxxxxxx> Porting this qemu fix to xen. Signed-off-by: Xu Dongxiao <dongxiao.xu@xxxxxxxxx>
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