Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 46 11 Dec 2024, 18:16

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:43.779 Passed
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
22.198
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.479
And I prepare Tails for memory erasure tests 0.511
When I start a process allocating 128 MiB of memory with a known pattern 2.388
Then patterns cover at least 128 MiB in the guest's memory 3.564

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 1.404
Then I find very few patterns in the guest's memory after 3 seconds 5.850

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 0.982
After features/support/hooks.rb:100 0.000
28.168
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.638
And I prepare Tails for memory erasure tests 0.461
And I find very few patterns in the guest's memory 3.135

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 5.063
Then patterns cover at least 99% of the test FS size in the guest's memory 3.225

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 1.535
Then I find very few patterns in the guest's memory after 3 seconds 6.108

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.819
After features/support/hooks.rb:100 0.000
55.677
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.235
And I prepare Tails for memory erasure tests 0.479
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.137
Then I find very few patterns in the guest's memory 4.621

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.824
Then patterns cover at least 75% of the test FS size in the guest's memory 4.325

Pattern coverage: 90.648% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.970
Then I find very few patterns in the guest's memory after 3 seconds 6.612

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

# read cache
When I mount the USB drive again 0.384
And I read the content of the test FS 2.007
Then patterns cover at least 99% of the test FS size in the guest's memory 3.715

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.597
Then I find very few patterns in the guest's memory after 3 seconds 6.765

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

After features/support/hooks.rb:326 0.841
After features/support/hooks.rb:100 0.000
1:21.992
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.628
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.307
Then I find very few patterns in the guest's memory 3.315

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.395
Then patterns cover at least 99% of the test FS size in the guest's memory 3.975

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.431
Then I find very few patterns in the guest's memory after 3 seconds 6.106

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# read cache
When I mount the USB drive again 6.487
And I read the content of the test FS 0.791
Then patterns cover at least 99% of the test FS size in the guest's memory 3.354

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.637
Then I find very few patterns in the guest's memory after 3 seconds 6.062

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 0.925
After features/support/hooks.rb:100 0.000
55.586
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.428
And I prepare Tails for memory erasure tests 0.610
When I fill a 128 MiB file with a known pattern on the root filesystem 20.604
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.959
Then patterns cover at least 128 MiB in the guest's memory 3.063

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.905

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 3.601
After features/support/hooks.rb:100 0.000
7:40.155
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:52.125
And I prepare Tails for memory erasure tests 0.464
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.243
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.309

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:326 3.573
After features/support/hooks.rb:100 0.011