Project Number Date
test_Tails_ISO_21195-dont-include-unused-firmware 4 27 Jul 2026, 02:33

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 7:37.147 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.
17.741
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 6.590
And I prepare Tails for memory erasure tests 0.367
When I start a process allocating 128 MiB of memory with a known pattern 2.194
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.793

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

When I kill the allocating process 0.193
Then I find very few patterns in the guest's memory after 5 seconds 6.600

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

After features/support/hooks.rb:339 1.019
After features/support/hooks.rb:108 0.000
17.263
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 6.464
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 1.607

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.628
Then patterns cover at least 99% of the test FS size in the guest's memory 1.926

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

When I umount "/mnt" 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.763

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

After features/support/hooks.rb:339 0.981
After features/support/hooks.rb:108 0.000
31.684
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 6.526
And I prepare Tails for memory erasure tests 0.421
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.082
Then I find very few patterns in the guest's memory 1.648

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.834
Then patterns cover at least 75% of the test FS size in the guest's memory 2.037

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

When I umount the USB drive 0.974
Then I find very few patterns in the guest's memory after 3 seconds 4.622

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.409
Then patterns cover at least 99% of the test FS size in the guest's memory 1.885

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

When I umount the USB drive 0.374
Then I find very few patterns in the guest's memory after 3 seconds 4.686

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:339 1.073
After features/support/hooks.rb:108 0.000
56.997
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 6.611
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.775
Then I find very few patterns in the guest's memory 1.608

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.138
Then patterns cover at least 99% of the test FS size in the guest's memory 1.744

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

When I umount the USB drive 0.490
Then I find very few patterns in the guest's memory after 3 seconds 4.664

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

# read cache
When I mount the USB drive again 4.489
And I read the content of the test FS 0.262
Then patterns cover at least 99% of the test FS size in the guest's memory 1.872

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

When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.558

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

After features/support/hooks.rb:339 0.753
After features/support/hooks.rb:108 0.000
55.826
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.420
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the root filesystem 25.536
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.415
Then patterns cover at least 128 MiB in the guest's memory 1.496

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 20.473

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 3.737
After features/support/hooks.rb:108 0.000
4:37.633
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 3:50.615
And I prepare Tails for memory erasure tests 0.283
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.887
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.839

Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)

After features/support/hooks.rb:339 3.562
After features/support/hooks.rb:108 0.010