Project Number Date
test_Tails_ISO_21565-flatpak-safe 106 28 Oct 2026, 03:26

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 7:13.577 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.
19.632
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 6.131
And I prepare Tails for memory erasure tests 0.280
When I start a process allocating 128 MiB of memory with a known pattern 2.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.080

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

When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 7.766

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

After features/support/hooks.rb:339 0.561
After features/support/hooks.rb:108 0.000
19.063
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 6.132
And I prepare Tails for memory erasure tests 0.262
And I find very few patterns in the guest's memory 2.778

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 1.411
Then patterns cover at least 99% of the test FS size in the guest's memory 2.760

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

When I umount "/mnt" 0.369
Then I find very few patterns in the guest's memory after 3 seconds 5.349

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

After features/support/hooks.rb:339 0.639
After features/support/hooks.rb:108 0.000
36.244
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 6.146
And I prepare Tails for memory erasure tests 0.261
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.296
Then I find very few patterns in the guest's memory 2.804

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.453
Then patterns cover at least 75% of the test FS size in the guest's memory 3.012

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

When I umount the USB drive 0.617
Then I find very few patterns in the guest's memory after 3 seconds 5.609

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.576
Then patterns cover at least 99% of the test FS size in the guest's memory 3.166

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

When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 5.669

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.987
After features/support/hooks.rb:108 0.000
59.837
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 6.226
And I prepare Tails for memory erasure tests 0.292
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.171
Then I find very few patterns in the guest's memory 2.488

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.221
Then patterns cover at least 99% of the test FS size in the guest's memory 2.639

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

When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 5.476

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# read cache
When I mount the USB drive again 3.815
And I read the content of the test FS 0.326
Then patterns cover at least 99% of the test FS size in the guest's memory 2.733

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

When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory after 3 seconds 5.436

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.897
After features/support/hooks.rb:108 0.000
43.859
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 6.333
And I prepare Tails for memory erasure tests 0.286
When I fill a 128 MiB file with a known pattern on the root filesystem 12.839
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.467
Then patterns cover at least 128 MiB in the guest's memory 2.216

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.710

Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)

After features/support/hooks.rb:339 3.685
After features/support/hooks.rb:108 0.000
4:14.940
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 3:43.853
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.542
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.111

Pattern coverage: 0.000% (0 MiB out of 1427 MiB reference memory)

After features/support/hooks.rb:339 3.741
After features/support/hooks.rb:108 0.010