Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 83 06 Jul 2026, 14:27

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 8:12.110 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.
18.208
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.757
And I prepare Tails for memory erasure tests 0.351
When I start a process allocating 128 MiB of memory with a known pattern 2.233
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.981

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.186
Then I find very few patterns in the guest's memory after 5 seconds 6.697

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 1.091
After features/support/hooks.rb:108 0.000
17.438
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.721
And I prepare Tails for memory erasure tests 0.325
And I find very few patterns in the guest's memory 1.607

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.516
Then patterns cover at least 99% of the test FS size in the guest's memory 2.042

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

When I umount "/mnt" 0.327
Then I find very few patterns in the guest's memory after 3 seconds 4.897

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

After features/support/hooks.rb:339 0.839
After features/support/hooks.rb:108 0.000
33.188
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.820
And I prepare Tails for memory erasure tests 0.393
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.141
Then I find very few patterns in the guest's memory 1.833

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.952
Then patterns cover at least 75% of the test FS size in the guest's memory 2.329

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.800
Then I find very few patterns in the guest's memory after 3 seconds 5.039

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

# read cache
When I mount the USB drive again 0.195
And I read the content of the test FS 0.474
Then patterns cover at least 99% of the test FS size in the guest's memory 1.978

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 4.839

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:339 0.719
After features/support/hooks.rb:108 0.000
1:0.749
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.838
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.878
Then I find very few patterns in the guest's memory 1.786

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.200
Then patterns cover at least 99% of the test FS size in the guest's memory 2.186

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.689
Then I find very few patterns in the guest's memory after 3 seconds 4.836

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# read cache
When I mount the USB drive again 4.855
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.738

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 4.611

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 1.043
After features/support/hooks.rb:108 0.000
1:1.869
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 7.215
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the root filesystem 30.094
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.703
Then patterns cover at least 128 MiB in the guest's memory 1.945

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.534

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:339 4.073
After features/support/hooks.rb:108 0.000
5:0.656
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:10.903
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.450
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.939

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:339 3.605
After features/support/hooks.rb:108 0.009