Project Number Date
test_Tails_ISO_stable 5206 21 Oct 2024, 14:25

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 11:8.042 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.
21.438
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.185
And I prepare Tails for memory erasure tests 0.463
When I start a process allocating 128 MiB of memory with a known pattern 1.294
Then patterns cover at least 128 MiB in the guest's memory 4.224

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

When I kill the allocating process 0.709
Then I find very few patterns in the guest's memory after 3 seconds 6.561

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 0.812
After features/support/hooks.rb:100 0.000
24.229
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.194
And I prepare Tails for memory erasure tests 0.567
And I find very few patterns in the guest's memory 3.109

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.902
Then patterns cover at least 99% of the test FS size in the guest's memory 3.623

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

When I umount "/mnt" 0.641
Then I find very few patterns in the guest's memory after 3 seconds 6.191

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.807
After features/support/hooks.rb:100 0.000
51.717
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.225
And I prepare Tails for memory erasure tests 0.445
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.487
Then I find very few patterns in the guest's memory 3.669

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.858
Then patterns cover at least 75% of the test FS size in the guest's memory 4.373

Pattern coverage: 91.866% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.115
Then I find very few patterns in the guest's memory after 3 seconds 6.189

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 0.465
And I read the content of the test FS 0.527
Then patterns cover at least 99% of the test FS size in the guest's memory 4.102

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

When I umount the USB drive 0.686
Then I find very few patterns in the guest's memory after 3 seconds 6.572

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 1.050
After features/support/hooks.rb:100 0.000
1:19.512
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.136
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.622
Then I find very few patterns in the guest's memory 2.862

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.287
Then patterns cover at least 99% of the test FS size in the guest's memory 3.214

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

When I umount the USB drive 1.114
Then I find very few patterns in the guest's memory after 3 seconds 5.913

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

# read cache
When I mount the USB drive again 5.609
And I read the content of the test FS 0.463
Then patterns cover at least 99% of the test FS size in the guest's memory 3.848

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

When I umount the USB drive 2.504
Then I find very few patterns in the guest's memory after 3 seconds 5.527

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 0.949
After features/support/hooks.rb:100 0.000
51.240
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.674
And I prepare Tails for memory erasure tests 0.452
When I fill a 128 MiB file with a known pattern on the root filesystem 16.320
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.872
Then patterns cover at least 128 MiB in the guest's memory 3.092

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.816

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.473
After features/support/hooks.rb:100 0.000
7:19.902
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:35.781
And I prepare Tails for memory erasure tests 0.480
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.441
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.180

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

After features/support/hooks.rb:326 3.493
After features/support/hooks.rb:100 0.014