Project Number Date
test_Tails_ISO_21565-flatpak-safe 57 28 Sep 2026, 18:54

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 8:7.249 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.
19.937
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 6.428
And I prepare Tails for memory erasure tests 0.318
When I start a process allocating 128 MiB of memory with a known pattern 2.170
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.003

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

When I kill the allocating process 0.254
Then I find very few patterns in the guest's memory after 5 seconds 7.760

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

After features/support/hooks.rb:339 0.803
After features/support/hooks.rb:108 0.000
20.531
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 6.262
And I prepare Tails for memory erasure tests 0.287
And I find very few patterns in the guest's memory 2.829

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.563
Then patterns cover at least 99% of the test FS size in the guest's memory 3.057

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

When I umount "/mnt" 0.471
Then I find very few patterns in the guest's memory after 3 seconds 6.059

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

After features/support/hooks.rb:339 0.685
After features/support/hooks.rb:108 0.000
48.742
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 18.606
And I prepare Tails for memory erasure tests 0.314
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.243
Then I find very few patterns in the guest's memory 2.528

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

# write cache
When I fill the USB drive with a known pattern 2.614
Then patterns cover at least 75% of the test FS size in the guest's memory 2.781

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

When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory after 3 seconds 5.818

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

# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.640
Then patterns cover at least 99% of the test FS size in the guest's memory 3.063

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

When I umount the USB drive 0.385
Then I find very few patterns in the guest's memory after 3 seconds 5.732

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

After features/support/hooks.rb:339 1.027
After features/support/hooks.rb:108 0.000
1:12.625
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.293
And I prepare Tails for memory erasure tests 0.341
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.078
Then I find very few patterns in the guest's memory 2.681

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.082
Then patterns cover at least 99% of the test FS size in the guest's memory 3.636

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

When I umount the USB drive 0.471
Then I find very few patterns in the guest's memory after 3 seconds 7.735

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

# read cache
When I mount the USB drive again 3.479
And I read the content of the test FS 0.312
Then patterns cover at least 99% of the test FS size in the guest's memory 4.817

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

When I umount the USB drive 0.430
Then I find very few patterns in the guest's memory after 3 seconds 10.264

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

After features/support/hooks.rb:339 0.664
After features/support/hooks.rb:108 0.000
44.725
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 6.462
And I prepare Tails for memory erasure tests 0.330
When I fill a 128 MiB file with a known pattern on the root filesystem 12.530
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.484
Then patterns cover at least 128 MiB in the guest's memory 2.901

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 21.011

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

After features/support/hooks.rb:339 3.813
After features/support/hooks.rb:108 0.000
4:40.687
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 4:9.426
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.765
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.125

Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)

After features/support/hooks.rb:339 3.645
After features/support/hooks.rb:108 0.027