Project Number Date
test_Tails_ISO_feature-arti 96 23 Jun 2025, 19:31

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 10:35.598 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.
20.798
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.564
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 1.225
Then patterns cover at least 128 MiB in the guest's memory 2.807

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

When I kill the allocating process 0.193
Then I find very few patterns in the guest's memory after 5 seconds 7.583

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:330 1.906
After features/support/hooks.rb:100 0.000
22.080
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.501
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 2.582

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.679
Then patterns cover at least 99% of the test FS size in the guest's memory 2.872

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

When I umount "/mnt" 0.394
Then I find very few patterns in the guest's memory after 3 seconds 5.645

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:330 0.889
After features/support/hooks.rb:100 0.000
43.259
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.580
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.188
Then I find very few patterns in the guest's memory 2.616

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.293
Then patterns cover at least 75% of the test FS size in the guest's memory 2.723

Pattern coverage: 87.384% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.763
Then I find very few patterns in the guest's memory after 3 seconds 5.529

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.651
Then patterns cover at least 99% of the test FS size in the guest's memory 2.775

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

When I umount the USB drive 0.833
Then I find very few patterns in the guest's memory after 3 seconds 5.701

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:330 0.957
After features/support/hooks.rb:100 0.000
1:15.592
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 10.058
And I prepare Tails for memory erasure tests 0.404
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.816
Then I find very few patterns in the guest's memory 2.380

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.581
Then patterns cover at least 99% of the test FS size in the guest's memory 2.638

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

When I umount the USB drive 0.695
Then I find very few patterns in the guest's memory after 3 seconds 4.813

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 3.287
And I read the content of the test FS 0.392
Then patterns cover at least 99% of the test FS size in the guest's memory 2.794

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

When I umount the USB drive 0.503
Then I find very few patterns in the guest's memory after 3 seconds 5.224

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:330 0.959
After features/support/hooks.rb:100 0.000
50.369
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.524
And I prepare Tails for memory erasure tests 0.464
When I fill a 128 MiB file with a known pattern on the root filesystem 16.518
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.876
Then patterns cover at least 128 MiB in the guest's memory 2.276

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 20.694

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:330 3.469
After features/support/hooks.rb:100 0.000
7:3.499
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:19.776
And I prepare Tails for memory erasure tests 0.447
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.094
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.168

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:330 3.528
After features/support/hooks.rb:100 0.012