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From: "Ewan D. Milne" <emilne@redhat.com>
To: linux-scsi@vger.kernel.org
Subject: [PATCH] scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist
Date: Tue, 31 May 2016 09:42:29 -0400	[thread overview]
Message-ID: <1464702149-26573-1-git-send-email-emilne@redhat.com> (raw)

Linux fails to boot as a guest with a QEMU CD-ROM:

[    4.439488] ata2.00: ATAPI: QEMU CD-ROM, 0.8.2, max UDMA/100
[    4.443649] ata2.00: configured for MWDMA2
[    4.450267] scsi 1:0:0:0: CD-ROM            QEMU     QEMU CD-ROM      0.8. PQ: 0 ANSI: 5
[    4.464317] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[    4.464319] ata2.00: BMDMA stat 0x5
[    4.464339] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[    4.464339]          Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[    4.464341] ata2.00: status: { DRDY DRQ }
[    4.465864] ata2: soft resetting link
[    4.625971] ata2.00: configured for MWDMA2
[    4.628290] ata2: EH complete
[    4.646670] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[    4.646671] ata2.00: BMDMA stat 0x5
[    4.646683] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[    4.646683]          Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[    4.646685] ata2.00: status: { DRDY DRQ }
[    4.648193] ata2: soft resetting link

...

Fix this by suppressing VPD inquiry for this device.

Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
---
 drivers/scsi/scsi_devinfo.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index bbfbfd9..09bbd3f 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -228,6 +228,7 @@ static struct {
 	{"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
 	{"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
 	{"Promise", "", NULL, BLIST_SPARSELUN},
+	{"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
 	{"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
 	{"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
 	{"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
-- 
1.7.1


             reply	other threads:[~2016-05-31 13:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-31 13:42 Ewan D. Milne [this message]
2016-05-31 13:43 ` [PATCH] scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist Johannes Thumshirn
2016-06-03  3:19   ` Tom Yan
     [not found]   ` <CAGnHSEmS7NzEFK7uD357r6Y=xU5o1O0i+AU5qhmqcqjmp_K0Lw@mail.gmail.com>
2016-06-03 14:36     ` Ewan D. Milne
2016-06-03 19:14       ` Tom Yan
2016-06-03 19:19         ` Ewan D. Milne
2016-06-03 21:14 ` Bart Van Assche
2016-06-06  7:34 ` Hannes Reinecke
2016-06-06 14:11   ` Ewan D. Milne
2016-06-06 14:22     ` Hannes Reinecke
2016-06-06 15:05       ` Paolo Bonzini
2016-06-06 15:41         ` John Snow
2016-06-06 15:43           ` Paolo Bonzini
2016-06-06 15:47             ` John Snow
2016-06-06 16:03               ` Paolo Bonzini

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