Project Number Date
test_Tails_ISO_21565-flatpak-safe 54 28 Sep 2026, 03:25

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 7:15.181 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.
19.549
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 6.106
And I prepare Tails for memory erasure tests 0.303
When I start a process allocating 128 MiB of memory with a known pattern 2.191
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.926

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

When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 7.817

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.628
After features/support/hooks.rb:108 0.000
19.920
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 6.196
And I prepare Tails for memory erasure tests 0.337
And I find very few patterns in the guest's memory 2.758

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.429
Then patterns cover at least 99% of the test FS size in the guest's memory 3.040

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

When I umount "/mnt" 0.426
Then I find very few patterns in the guest's memory after 3 seconds 5.731

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.813
After features/support/hooks.rb:108 0.000
36.812
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 6.179
And I prepare Tails for memory erasure tests 0.297
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.060
Then I find very few patterns in the guest's memory 2.881

Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.824
Then patterns cover at least 75% of the test FS size in the guest's memory 3.121

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

When I umount the USB drive 0.740
Then I find very few patterns in the guest's memory after 3 seconds 5.667

Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)

# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.557
Then patterns cover at least 99% of the test FS size in the guest's memory 3.137

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

When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 5.779

Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)

After features/support/hooks.rb:339 0.949
After features/support/hooks.rb:108 0.000
58.884
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 6.263
And I prepare Tails for memory erasure tests 0.309
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.224
Then I find very few patterns in the guest's memory 2.495

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.279
Then patterns cover at least 99% of the test FS size in the guest's memory 2.715

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

When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 5.580

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# read cache
When I mount the USB drive again 3.469
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 2.642

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

When I umount the USB drive 0.460
Then I find very few patterns in the guest's memory after 3 seconds 5.588

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.814
After features/support/hooks.rb:108 0.000
43.644
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 6.187
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 12.458
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.627
Then patterns cover at least 128 MiB in the guest's memory 2.224

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

When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 20.756

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 3.364
After features/support/hooks.rb:108 0.000
4:16.370
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.987
And I prepare Tails for memory erasure tests 0.285
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.916
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.176

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 3.759
After features/support/hooks.rb:108 0.008