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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/zero-shot/105/device/1933
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloademulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
restructure results
Diffstat (limited to 'results/classifier/zero-shot/105/device/1933')
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diff --git a/results/classifier/zero-shot/105/device/1933 b/results/classifier/zero-shot/105/device/1933
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@@ -0,0 +1,54 @@
+device: 0.856
+graphic: 0.789
+socket: 0.725
+instruction: 0.721
+KVM: 0.710
+other: 0.682
+vnc: 0.663
+semantic: 0.605
+network: 0.594
+boot: 0.591
+assembly: 0.578
+mistranslation: 0.486
+
+qemu 8.1.1 and 7.2.6 live migration with qcow2 attached to vm using postcopy crashes
+Description of problem:
+Live migrating a vm with a qcow2 disk attached using postcopy will cause vm to crash during migration.
+Steps to reproduce:
+1. Create a generic vm and attach a qcow2 file to the vm.
+<disk type='file' device='disk'>
+ <driver name='qemu' type='qcow2' cache='none'/>
+ <source file='/var/lib/libvirt/images/jlow2.qcow2'/>
+ <target dev='vda' bus='virtio'/>
+ <boot order='1'/>
+</disk>
+
+2. virsh migrate jlow2 --change-protection --persistent --live --verbose --undefinesource --abort-on-error --postcopy --postcopy-after-precopy --timeout 1 --timeout-postcopy qemu+tcp://10.18.64.118/system
+
+vm will start migrating and then pause on the source and be shut down on the target once migration switches to postcopy
+
+Migration: [33.08 %]error: internal error: QEMU unexpectedly closed the monitor (vm='jlow2'): 2023-10-12T06:23:44.354387Z qemu-system-x86_64: warning: TSC frequency mismatch between VM (2892749 kHz) and host (2799999 kHz), and TSC scaling unavailable
+2023-10-12T06:23:44.354538Z qemu-system-x86_64: warning: TSC frequency mismatch between VM (2892749 kHz) and host (2799999 kHz), and TSC scaling unavailable
+qemu-system-x86_64: ../block/qcow2.c:5257: qcow2_get_specific_info: Assertion `false' failed.
+
+
+Logs from source
+
+2023-10-12 06:23:43.412+0000: initiating migration
+
+2023-10-12T06:23:44.362392Z qemu-system-x86_64: failed to save SaveStateEntry with id(name): 3(ram): -5
+
+2023-10-12T06:23:44.362485Z qemu-system-x86_64: Detected IO failure for postcopy. Migration paused.
+
+Logs from target
+
+2023-10-12T06:23:44.354387Z qemu-system-x86_64: warning: TSC frequency mismatch between VM (2892749 kHz) and host (2799999 kHz), and TSC scaling unavailable
+
+2023-10-12T06:23:44.354538Z qemu-system-x86_64: warning: TSC frequency mismatch between VM (2892749 kHz) and host (2799999 kHz), and TSC scaling unavailable
+
+qemu-system-x86_64: ../block/qcow2.c:5257: qcow2_get_specific_info: Assertion `false' failed.
+2023-10-12 06:23:44.408+0000: shutting down, reason=failed
+
+If postcopy is disabled with command below, migration will succeed:
+
+virsh migrate jlow2 --change-protection --persistent --live --verbose --undefinesource --abort-on-error qemu+tcp://10.18.64.118/system