Project Number Date
test_Tails_ISO_devel 3335 25 Mar 2024, 12:16

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 9:57.734 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.
20.645
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.729
And I prepare Tails for memory erasure tests 0.515
When I start a process allocating 128 MiB of memory with a known pattern 1.255
Then patterns cover at least 128 MiB in the guest's memory 4.495

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

When I kill the allocating process 0.936
Then I find very few patterns in the guest's memory 4.714

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

After features/support/hooks.rb:291 2.297
After features/support/hooks.rb:75 0.000
23.754
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.103
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 4.636

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.639
Then patterns cover at least 99% of the test FS size in the guest's memory 4.038

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

When I umount "/mnt" 0.373
Then I find very few patterns in the guest's memory 4.550

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:291 1.017
After features/support/hooks.rb:75 0.000
46.566
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.245
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.843
Then I find very few patterns in the guest's memory 4.725

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.785
Then patterns cover at least 86% of the test FS size in the guest's memory 5.618

Pattern coverage: 87.305% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.034
Then I find very few patterns in the guest's memory 4.529

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.551
And I read the content of the test FS 1.538
Then patterns cover at least 99% of the test FS size in the guest's memory 4.037

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

When I umount the USB drive 0.561
Then I find very few patterns in the guest's memory 4.645

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:291 0.688
After features/support/hooks.rb:75 0.000
1:4.958
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.795
And I prepare Tails for memory erasure tests 0.552
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.060
Then I find very few patterns in the guest's memory 3.991

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.600
Then patterns cover at least 99% of the test FS size in the guest's memory 3.316

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

When I umount the USB drive 0.789
Then I find very few patterns in the guest's memory 3.930

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 3.658
And I read the content of the test FS 0.477
Then patterns cover at least 99% of the test FS size in the guest's memory 3.349

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

When I umount the USB drive 0.588
Then I find very few patterns in the guest's memory 3.849

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:291 0.622
After features/support/hooks.rb:75 0.000
50.985
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.034
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 16.874
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.895
Then patterns cover at least 128 MiB in the guest's memory 2.843

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.006

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.966

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:291 3.549
After features/support/hooks.rb:75 0.000
6:30.823
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:45.265
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.965
When I trigger shutdown 0.015
And I wait 20 seconds 20.013

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.231

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:291 3.605
After features/support/hooks.rb:75 0.014