Project Number Date
test_Tails_ISO_21565-flatpak-safe 25 04 Sep 2026, 03:20

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 8:8.821 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.
31.424
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 18.095
And I prepare Tails for memory erasure tests 0.290
When I start a process allocating 128 MiB of memory with a known pattern 2.172
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.097

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

When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 7.555

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

After features/support/hooks.rb:339 0.827
After features/support/hooks.rb:108 0.000
31.071
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 18.077
And I prepare Tails for memory erasure tests 0.287
And I find very few patterns in the guest's memory 2.644

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.304
Then patterns cover at least 99% of the test FS size in the guest's memory 2.795

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

When I umount "/mnt" 0.335
Then I find very few patterns in the guest's memory after 3 seconds 5.626

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

After features/support/hooks.rb:339 0.660
After features/support/hooks.rb:108 0.000
1:10.703
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 41.208
And I prepare Tails for memory erasure tests 0.306
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.173
Then I find very few patterns in the guest's memory 2.773

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.365
Then patterns cover at least 75% of the test FS size in the guest's memory 2.973

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

When I umount the USB drive 0.665
Then I find very few patterns in the guest's memory after 3 seconds 5.647

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

# read cache
When I mount the USB drive again 0.247
And I read the content of the test FS 0.524
Then patterns cover at least 99% of the test FS size in the guest's memory 2.813

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

When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 5.605

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:339 1.072
After features/support/hooks.rb:108 0.000
1:6.537
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 6.212
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.723
Then I find very few patterns in the guest's memory 2.489

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

# write cache
When I fill the USB drive with a known pattern 1.166
Then patterns cover at least 99% of the test FS size in the guest's memory 2.685

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

When I umount the USB drive 0.464
Then I find very few patterns in the guest's memory after 3 seconds 6.699

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

# read cache
When I mount the USB drive again 3.874
And I read the content of the test FS 0.323
Then patterns cover at least 99% of the test FS size in the guest's memory 4.610

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

When I umount the USB drive 0.392
Then I find very few patterns in the guest's memory after 3 seconds 7.578

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

After features/support/hooks.rb:339 0.725
After features/support/hooks.rb:108 0.000
44.902
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 6.307
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the root filesystem 13.383
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.510
Then patterns cover at least 128 MiB in the guest's memory 2.529

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 20.802

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:339 3.648
After features/support/hooks.rb:108 0.000
4:4.182
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:33.087
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.806
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.987

Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)

After features/support/hooks.rb:339 3.471
After features/support/hooks.rb:108 0.037