restructure results

1 files changed, 66 insertions, 0 deletions

diff --git a/results/classifier/deepseek-r1:14b/output/KVM/1687653 b/results/classifier/deepseek-r1:14b/output/KVM/1687653
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+
+QEMU-KVM / detect_zeroes causes KVM to start unlimited number of threads on Guest-Sided High-IO with big Blocksize
+
+QEMU-KVM in combination with "detect_zeroes=on" makes a Guest able to DoS the Host. This is possible if the Host itself has "detect_zeroes" enabled and the Guest writes a large Chunk of data with a huge blocksize onto the drive.
+
+E.g.: dd if=/dev/zero of=/tmp/DoS bs=1G count=1 oflag=direct
+
+All QEMU-Versions after implementation of detect_zeroes are affected. Prior are unaffected. This is absolutely critical, please fix this ASAP!
+
+#####
+
+Provided by Dominik Csapak:
+
+source    , bs   , count     ,    O_DIRECT, behaviour
+
+urandom   , bs 1M, count 1024,    O_DIRECT: OK
+file      , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1M, count 1024,    O_DIRECT: OK
+zero file , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1G, count    1,    O_DIRECT: NOT OK
+zero file , bs 1G, count    1,    O_DIRECT: NOT OK
+zero file , bs 1G, count    1, no O_DIRECT: NOT OK
+rand file , bs 1G, count    1,    O_DIRECT: OK
+rand file , bs 1G, count    1, no O_DIRECT: OK
+
+discard on:
+
+urandom   , bs 1M, count 1024,    O_DIRECT: OK
+rand file , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1M, count 1024,    O_DIRECT: OK
+zero file , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1G, count    1,    O_DIRECT: NOT OK
+zero file , bs 1G, count    1,    O_DIRECT: NOT OK
+zero file , bs 1G, count    1, no O_DIRECT: NOT OK
+rand file , bs 1G, count    1,    O_DIRECT: OK
+rand file , bs 1G, count    1, no O_DIRECT: OK
+
+detect_zeros off:
+
+urandom   , bs 1M, count 1024,    O_DIRECT: OK
+rand file , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1M, count 1024,    O_DIRECT: OK
+zero file , bs 1M, count 1024,    O_DIRECT: OK
+/dev/zero , bs 1G, count    1,    O_DIRECT: OK
+zero file , bs 1G, count    1,    O_DIRECT: OK
+zero file , bs 1G, count    1, no O_DIRECT: OK
+rand file , bs 1G, count    1,    O_DIRECT: OK
+rand file , bs 1G, count    1, no O_DIRECT: OK
+
+#####
+
+Provided by Florian Strankowski
+
+bs   -    count   -    io-threads
+
+512K -    2048    -    2
+1M   -    1024    -    2
+2M   -     512    -    4
+4M   -     256    -    6
+8M   -     128    -    10
+16M  -      64    -    18
+32M  -      32    -    uncountable
+
+Please refer to further information here: 
+
+https://bugzilla.proxmox.com/show_bug.cgi?id=1368
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