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-rw-r--r--results/classifier/118/device/159259052
1 files changed, 52 insertions, 0 deletions
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+device: 0.830
+graphic: 0.756
+user-level: 0.699
+architecture: 0.698
+PID: 0.666
+socket: 0.647
+performance: 0.640
+ppc: 0.632
+semantic: 0.626
+register: 0.619
+permissions: 0.590
+files: 0.561
+kernel: 0.540
+network: 0.519
+vnc: 0.504
+VMM: 0.504
+boot: 0.501
+risc-v: 0.485
+hypervisor: 0.476
+mistranslation: 0.436
+KVM: 0.427
+x86: 0.404
+arm: 0.389
+TCG: 0.384
+i386: 0.376
+virtual: 0.352
+peripherals: 0.343
+debug: 0.336
+assembly: 0.184
+
+Prevent qemu-img resize from causing "Active L1 table too large"
+
+This commit prevents qemu from overallocating if qcow2 image is too big (whatever that means): https://lists.gnu.org/archive/html/qemu-devel/2014-07/msg01481.html
+
+However, `qemu-img resize` isn't protected by the same code and allows to go beyond that.
+
+root@nwkr-laptop ~virtkick/hdd # qemu-img resize 33_test_609dffde-eb51-4b75-918d-b814f1bcb526.qcow2 +100000T
+Image resized.
+
+Which then causes "Active L1 table too large" error that cannot be reversed.
+
+root@nwkr-laptop ~virtkick/hdd # qemu-img info 33_test_609dffde-eb51-4b75-918d-b814f1bcb526.qcow2
+qemu-img: Could not open '33_test_609dffde-eb51-4b75-918d-b814f1bcb526.qcow2': Active L1 table too large
+
+root@nwkr-laptop ~virtkick/hdd # qemu-img resize 33_test_609dffde-eb51-4b75-918d-b814f1bcb526.qcow2 -100000T
+qemu-img: Could not open '33_test_609dffde-eb51-4b75-918d-b814f1bcb526.qcow2': Active L1 table too large
+
+
+I originally faces this bug when I passed wrong parameters to qemu-img in a programatic way which caused an image to go corrupt. It's good to protect user's images from being resized too much.
+
+Thanks for the report, sorry for the late reply: This has been fixed in commit 84c26520d3c1c9ff4a10455748139463278816d5 (included in the 2.7.0 release).
+