Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 75 27 Jun 2026, 14:22

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 7:32.319 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.
17.882
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 6.601
And I prepare Tails for memory erasure tests 0.315
When I start a process allocating 128 MiB of memory with a known pattern 2.182
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.968

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

When I kill the allocating process 0.177
Then I find very few patterns in the guest's memory after 5 seconds 6.636

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.915
After features/support/hooks.rb:108 0.000
17.223
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 6.560
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 1.805

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.560
Then patterns cover at least 99% of the test FS size in the guest's memory 1.925

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

When I umount "/mnt" 0.384
Then I find very few patterns in the guest's memory after 3 seconds 4.636

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:339 0.953
After features/support/hooks.rb:108 0.000
31.098
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 6.600
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.112
Then I find very few patterns in the guest's memory 1.708

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.539
Then patterns cover at least 75% of the test FS size in the guest's memory 1.939

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

When I umount the USB drive 0.710
Then I find very few patterns in the guest's memory after 3 seconds 4.724

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

# read cache
When I mount the USB drive again 0.146
And I read the content of the test FS 0.360
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838

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

When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.723

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

After features/support/hooks.rb:339 0.686
After features/support/hooks.rb:108 0.000
55.887
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 6.533
And I prepare Tails for memory erasure tests 0.314
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.114
Then I find very few patterns in the guest's memory 1.737

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.098
Then patterns cover at least 99% of the test FS size in the guest's memory 1.775

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

When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 4.624

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

# read cache
When I mount the USB drive again 4.077
And I read the content of the test FS 0.325
Then patterns cover at least 99% of the test FS size in the guest's memory 1.849

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

When I umount the USB drive 0.402
Then I find very few patterns in the guest's memory after 3 seconds 4.551

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

After features/support/hooks.rb:339 0.884
After features/support/hooks.rb:108 0.000
1:0.466
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 6.492
And I prepare Tails for memory erasure tests 0.326
When I fill a 128 MiB file with a known pattern on the root filesystem 30.090
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.577
Then patterns cover at least 128 MiB in the guest's memory 1.484

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.488

Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)

After features/support/hooks.rb:339 3.600
After features/support/hooks.rb:108 0.000
4:29.762
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 3:42.771
And I prepare Tails for memory erasure tests 0.305
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.856
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.825

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:339 3.465
After features/support/hooks.rb:108 0.009