800917b5a2
- 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
33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
qcow2 corruption: Fix alloc_cluster_link_l2 (Kevin Wolf)
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This patch fixes a qcow2 corruption bug introduced in SVN Rev 5861. L2 tables
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are big endian, so entries must be converted before being passed to functions.
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This bug is easy to trigger. The following script will create and destroy a
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qcow2 image (the header is gone after three loop iterations):
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#!/bin/bash
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qemu-img create -f qcow2 test.qcow 1M
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for i in $(seq 1 10); do
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qemu-system-x86_64 -hda test.qcow -monitor stdio > /dev/null 2>&1 <<EOF
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savevm test-$i
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quit
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EOF
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done
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Index: xen-4.1.2-testing/tools/ioemu-qemu-xen/block-qcow2.c
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===================================================================
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--- xen-4.1.2-testing.orig/tools/ioemu-qemu-xen/block-qcow2.c
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+++ xen-4.1.2-testing/tools/ioemu-qemu-xen/block-qcow2.c
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@@ -916,7 +916,7 @@ static int alloc_cluster_link_l2(BlockDr
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goto err;
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for (i = 0; i < j; i++)
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- free_any_clusters(bs, old_cluster[i], 1);
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+ free_any_clusters(bs, be64_to_cpu(old_cluster[i]) & ~QCOW_OFLAG_COPIED, 1);
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ret = 0;
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err:
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