Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 60 12 Jun 2026, 14:30

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 7:53.412 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.
17.761
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.758
And I prepare Tails for memory erasure tests 0.384
When I start a process allocating 128 MiB of memory with a known pattern 1.299
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.463

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

When I kill the allocating process 0.175
Then I find very few patterns in the guest's memory after 5 seconds 6.678

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

After features/support/hooks.rb:339 1.073
After features/support/hooks.rb:108 0.000
19.080
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 6.875
And I prepare Tails for memory erasure tests 0.432
And I find very few patterns in the guest's memory 1.775

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.031
Then patterns cover at least 99% of the test FS size in the guest's memory 2.553

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

When I umount "/mnt" 0.407
Then I find very few patterns in the guest's memory after 3 seconds 5.004

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

After features/support/hooks.rb:339 0.700
After features/support/hooks.rb:108 0.000
34.069
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 6.766
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.843
Then I find very few patterns in the guest's memory 2.071

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

# write cache
When I fill the USB drive with a known pattern 2.363
Then patterns cover at least 75% of the test FS size in the guest's memory 2.199

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

When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory after 3 seconds 4.833

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

# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.502
Then patterns cover at least 99% of the test FS size in the guest's memory 2.054

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

When I umount the USB drive 0.331
Then I find very few patterns in the guest's memory after 3 seconds 4.875

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

After features/support/hooks.rb:339 0.752
After features/support/hooks.rb:108 0.001
58.887
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.039
Given I have started Tails from DVD without network and logged in 7.087
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.814
Then I find very few patterns in the guest's memory 1.757

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

# write cache
When I fill the USB drive with a known pattern 1.413
Then patterns cover at least 99% of the test FS size in the guest's memory 2.092

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

When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 4.639

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

# read cache
When I mount the USB drive again 3.911
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.844

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

When I umount the USB drive 0.329
Then I find very few patterns in the guest's memory after 3 seconds 4.869

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

After features/support/hooks.rb:339 0.987
After features/support/hooks.rb:108 0.008
54.242
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 7.268
And I prepare Tails for memory erasure tests 0.329
When I fill a 128 MiB file with a known pattern on the root filesystem 22.510
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.098
Then patterns cover at least 128 MiB in the guest's memory 1.494

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 20.536

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

After features/support/hooks.rb:339 3.950
After features/support/hooks.rb:108 0.000
4:49.371
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:11.222
And I prepare Tails for memory erasure tests 0.331
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.975
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.836

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

After features/support/hooks.rb:339 3.878
After features/support/hooks.rb:108 0.039