Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 52 06 Jun 2026, 14:26

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 7:39.206 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.
18.683
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.948
And I prepare Tails for memory erasure tests 0.437
When I start a process allocating 128 MiB of memory with a known pattern 2.229
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.061

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

When I kill the allocating process 0.176
Then I find very few patterns in the guest's memory after 5 seconds 6.830

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

After features/support/hooks.rb:335 1.077
After features/support/hooks.rb:104 0.000
18.132
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.619
And I prepare Tails for memory erasure tests 0.415
And I find very few patterns in the guest's memory 1.864

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.755
Then patterns cover at least 99% of the test FS size in the guest's memory 2.069

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

When I umount "/mnt" 0.437
Then I find very few patterns in the guest's memory after 3 seconds 4.971

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:335 0.658
After features/support/hooks.rb:104 0.000
32.078
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.579
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.333
Then I find very few patterns in the guest's memory 1.975

Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.605
Then patterns cover at least 75% of the test FS size in the guest's memory 2.209

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

When I umount the USB drive 0.926
Then I find very few patterns in the guest's memory after 3 seconds 4.660

Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)

# read cache
When I mount the USB drive again 0.151
And I read the content of the test FS 0.369
Then patterns cover at least 99% of the test FS size in the guest's memory 1.841

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

When I umount the USB drive 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.670

Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)

After features/support/hooks.rb:335 0.687
After features/support/hooks.rb:104 0.000
1:3.616
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.025
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.684
Then I find very few patterns in the guest's memory 1.794

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

# write cache
When I fill the USB drive with a known pattern 1.436
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817

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

When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 4.609

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

# read cache
When I mount the USB drive again 4.095
And I read the content of the test FS 0.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.819

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

When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 4.722

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

After features/support/hooks.rb:335 0.744
After features/support/hooks.rb:104 0.000
51.450
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.686
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the root filesystem 20.818
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.552
Then patterns cover at least 128 MiB in the guest's memory 1.446

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

When I trigger shutdown 0.032
Then I find very few patterns in the guest's memory after 20 seconds 20.486

Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)

After features/support/hooks.rb:335 3.593
After features/support/hooks.rb:104 0.000
4:35.246
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:56.747
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.304
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.850

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

After features/support/hooks.rb:335 3.452
After features/support/hooks.rb:104 0.008