xen/ioemu-blktap-zero-size.patch
Charles Arnold 800917b5a2 - bnc#717650 - Unable to start VM
- Update to Xen 4.1.2_rc2 c/s 23152

- bnc#716695 - domUs using tap devices will not start
  updated multi-xvdp.patch

- Upstream patches from Jan
  23803-intel-pmu-models.patch
  23800-x86_64-guest-addr-range.patch
  23795-intel-ich10-quirk.patch
  23804-x86-IPI-counts.patch 

- bnc#706106 - Inconsistent reporting of VM names during migration
  xend-migration-domname-fix.patch

- bnc#712823 - L3:Xen guest does not start reliable when rebooted
  xend-vcpu-affinity-fix.patch

OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=143
2011-09-15 21:43:21 +00:00

45 lines
1.7 KiB
Diff

From cb982fd919a52ff86f01025d0f92225bc7b2a956 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@suse.de>
Date: Tue, 10 Mar 2009 16:44:31 +0100
Subject: [PATCH 5/6] ioemu: Fail on too small blktap disks
The blktap infrastructure doesn't seems to be able to cope with images
that are smaller than a sector, it produced hangs for me. Such an
image isn't really useful anyway, so just fail gracefully.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
---
hw/xen_blktap.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/hw/xen_blktap.c
===================================================================
--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/hw/xen_blktap.c
+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/hw/xen_blktap.c
@@ -268,6 +268,12 @@ static int open_disk(struct td_state *s,
s->size = bs->total_sectors;
s->sector_size = 512;
+ if (s->size == 0) {
+ fprintf(stderr, "Error: Disk image %s is too small\n",
+ path);
+ return -ENOMEM;
+ }
+
s->info = ((s->flags & TD_RDONLY) ? VDISK_READONLY : 0);
return 0;
Index: xen-4.1.2-testing/tools/python/xen/xend/server/DevController.py
===================================================================
--- xen-4.1.2-testing.orig/tools/python/xen/xend/server/DevController.py
+++ xen-4.1.2-testing/tools/python/xen/xend/server/DevController.py
@@ -155,7 +155,7 @@ class DevController:
(devid, self.deviceClass))
elif status == Error:
- self.destroyDevice(devid, False)
+ self.destroyDevice(devid, True)
if err is None:
raise VmError("Device %s (%s) could not be connected. "
"Backend device not found." %