Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 63 15 Jun 2026, 14:46

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 8:8.305 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.
18.493
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 6.962
And I prepare Tails for memory erasure tests 0.404
When I start a process allocating 128 MiB of memory with a known pattern 2.286
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.973

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

When I kill the allocating process 0.217
Then I find very few patterns in the guest's memory after 5 seconds 6.649

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:339 0.893
After features/support/hooks.rb:108 0.000
18.467
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 7.040
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 1.930

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.857
Then patterns cover at least 99% of the test FS size in the guest's memory 2.085

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

When I umount "/mnt" 0.349
Then I find very few patterns in the guest's memory after 3 seconds 4.790

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:339 0.781
After features/support/hooks.rb:108 0.000
34.024
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 7.355
And I prepare Tails for memory erasure tests 0.421
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.591
Then I find very few patterns in the guest's memory 1.838

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.592
Then patterns cover at least 75% of the test FS size in the guest's memory 2.007

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

When I umount the USB drive 0.767
Then I find very few patterns in the guest's memory after 3 seconds 4.818

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# read cache
When I mount the USB drive again 0.230
And I read the content of the test FS 0.530
Then patterns cover at least 99% of the test FS size in the guest's memory 2.297

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

When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 5.125

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:339 1.040
After features/support/hooks.rb:108 0.000
1:3.499
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 7.094
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.862
Then I find very few patterns in the guest's memory 1.817

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.408
Then patterns cover at least 99% of the test FS size in the guest's memory 1.742

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

When I umount the USB drive 0.620
Then I find very few patterns in the guest's memory after 3 seconds 4.931

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# read cache
When I mount the USB drive again 5.441
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897

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

When I umount the USB drive 0.466
Then I find very few patterns in the guest's memory after 3 seconds 4.529

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:339 0.836
After features/support/hooks.rb:108 0.000
57.536
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 7.146
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 26.039
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.772
Then patterns cover at least 128 MiB in the guest's memory 1.647

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 20.524

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:339 3.575
After features/support/hooks.rb:108 0.000
4:56.284
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:16.858
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.139
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.934

Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)

After features/support/hooks.rb:339 3.628
After features/support/hooks.rb:108 0.043