Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 79 01 Jul 2026, 04:30

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 7:48.984 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.
17.844
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 6.563
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 2.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.826

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

When I kill the allocating process 0.236
Then I find very few patterns in the guest's memory after 5 seconds 6.676

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

After features/support/hooks.rb:339 0.944
After features/support/hooks.rb:108 0.000
17.047
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 6.563
And I prepare Tails for memory erasure tests 0.320
And I find very few patterns in the guest's memory 1.657

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.590
Then patterns cover at least 99% of the test FS size in the guest's memory 1.902

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

When I umount "/mnt" 0.356
Then I find very few patterns in the guest's memory after 3 seconds 4.657

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

After features/support/hooks.rb:339 0.719
After features/support/hooks.rb:108 0.000
31.049
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 6.432
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.143
Then I find very few patterns in the guest's memory 1.884

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

# write cache
When I fill the USB drive with a known pattern 2.518
Then patterns cover at least 75% of the test FS size in the guest's memory 1.941

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

When I umount the USB drive 0.662
Then I find very few patterns in the guest's memory after 3 seconds 4.688

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

# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.393
Then patterns cover at least 99% of the test FS size in the guest's memory 1.827

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

When I umount the USB drive 0.394
Then I find very few patterns in the guest's memory after 3 seconds 4.688

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

After features/support/hooks.rb:339 0.742
After features/support/hooks.rb:108 0.000
55.441
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 6.447
And I prepare Tails for memory erasure tests 0.327
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.093
Then I find very few patterns in the guest's memory 1.625

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.202
Then patterns cover at least 99% of the test FS size in the guest's memory 1.765

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

When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 4.580

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# read cache
When I mount the USB drive again 3.930
And I read the content of the test FS 0.255
Then patterns cover at least 99% of the test FS size in the guest's memory 1.746

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

When I umount the USB drive 0.360
Then I find very few patterns in the guest's memory after 3 seconds 4.631

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:339 0.846
After features/support/hooks.rb:108 0.000
1:6.257
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 0.347
When I fill a 128 MiB file with a known pattern on the root filesystem 35.924
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.500
Then patterns cover at least 128 MiB in the guest's memory 1.508

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 20.508

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:339 3.371
After features/support/hooks.rb:108 0.000
4:41.343
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 3:52.761
And I prepare Tails for memory erasure tests 0.299
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.386
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.884

Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)

After features/support/hooks.rb:339 3.898
After features/support/hooks.rb:108 0.009