Project Number Date
test_Tails_ISO_21565-flatpak-safe 107 28 Oct 2026, 19:20

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 7:28.785 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.
19.696
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 6.201
And I prepare Tails for memory erasure tests 0.354
When I start a process allocating 128 MiB of memory with a known pattern 2.316
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.035

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

When I kill the allocating process 0.196
Then I find very few patterns in the guest's memory after 5 seconds 7.592

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 1.056
After features/support/hooks.rb:108 0.000
19.981
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 6.495
And I prepare Tails for memory erasure tests 0.350
And I find very few patterns in the guest's memory 2.842

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.494
Then patterns cover at least 99% of the test FS size in the guest's memory 2.777

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

When I umount "/mnt" 0.435
Then I find very few patterns in the guest's memory after 3 seconds 5.583

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 0.731
After features/support/hooks.rb:108 0.000
37.161
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 6.336
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.375
Then I find very few patterns in the guest's memory 2.698

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.619
Then patterns cover at least 75% of the test FS size in the guest's memory 3.071

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

When I umount the USB drive 0.670
Then I find very few patterns in the guest's memory after 3 seconds 6.064

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.621
Then patterns cover at least 99% of the test FS size in the guest's memory 3.061

Pattern coverage: 100.000% (127 MiB out of 127 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 5.720

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 0.569
After features/support/hooks.rb:108 0.000
1:4.875
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 6.235
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.949
Then I find very few patterns in the guest's memory 2.650

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.161
Then patterns cover at least 99% of the test FS size in the guest's memory 2.798

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

When I umount the USB drive 0.505
Then I find very few patterns in the guest's memory after 3 seconds 7.153

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

# read cache
When I mount the USB drive again 4.165
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 2.675

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

When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory after 3 seconds 5.440

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.853
After features/support/hooks.rb:108 0.000
44.851
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 6.418
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the root filesystem 13.008
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.987
Then patterns cover at least 128 MiB in the guest's memory 2.312

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 20.771

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 3.930
After features/support/hooks.rb:108 0.000
4:22.219
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.231
And I prepare Tails for memory erasure tests 0.308
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.518
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.155

Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)

After features/support/hooks.rb:339 3.508
After features/support/hooks.rb:108 0.010