Project Number Date
test_Tails_ISO_21565-flatpak-safe 41 20 Sep 2026, 03:23

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 7:4.416 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.
19.641
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 6.356
And I prepare Tails for memory erasure tests 0.350
When I start a process allocating 128 MiB of memory with a known pattern 2.169
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.847

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

When I kill the allocating process 0.225
Then I find very few patterns in the guest's memory after 5 seconds 7.692

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

After features/support/hooks.rb:339 0.587
After features/support/hooks.rb:108 0.000
19.678
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 6.338
And I prepare Tails for memory erasure tests 0.363
And I find very few patterns in the guest's memory 2.686

Pattern coverage: 0.000% (0 MiB out of 1435 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.462
Then patterns cover at least 99% of the test FS size in the guest's memory 2.877

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

When I umount "/mnt" 0.328
Then I find very few patterns in the guest's memory after 3 seconds 5.621

Pattern coverage: 0.000% (0 MiB out of 1435 MiB reference memory)

After features/support/hooks.rb:339 1.057
After features/support/hooks.rb:108 0.000
35.915
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 6.263
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.123
Then I find very few patterns in the guest's memory 2.832

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.437
Then patterns cover at least 75% of the test FS size in the guest's memory 3.161

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

When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory after 3 seconds 5.803

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.551
Then patterns cover at least 99% of the test FS size in the guest's memory 2.828

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

When I umount the USB drive 0.340
Then I find very few patterns in the guest's memory after 3 seconds 5.430

Pattern coverage: 0.000% (0 MiB out of 1433 MiB reference memory)

After features/support/hooks.rb:339 0.844
After features/support/hooks.rb:108 0.000
1:0.096
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 6.274
And I prepare Tails for memory erasure tests 0.317
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.260
Then I find very few patterns in the guest's memory 2.521

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.243
Then patterns cover at least 99% of the test FS size in the guest's memory 2.545

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

When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 5.462

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# read cache
When I mount the USB drive again 3.951
And I read the content of the test FS 0.333
Then patterns cover at least 99% of the test FS size in the guest's memory 2.667

Pattern coverage: 106.115% (97 MiB out of 91 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 5.589

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

After features/support/hooks.rb:339 0.631
After features/support/hooks.rb:108 0.000
44.698
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 6.200
And I prepare Tails for memory erasure tests 0.377
When I fill a 128 MiB file with a known pattern on the root filesystem 13.440
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.511
Then patterns cover at least 128 MiB in the guest's memory 2.422

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 20.740

Pattern coverage: 0.000% (0 MiB out of 1425 MiB reference memory)

After features/support/hooks.rb:339 3.833
After features/support/hooks.rb:108 0.000
4:4.385
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 3:33.414
And I prepare Tails for memory erasure tests 0.271
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.536
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.157

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 3.761
After features/support/hooks.rb:108 0.009