Project Number Date
test_Tails_ISO_21565-flatpak-safe 52 26 Sep 2026, 03:39

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 7:15.214 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.
20.076
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 6.124
And I prepare Tails for memory erasure tests 0.332
When I start a process allocating 128 MiB of memory with a known pattern 2.167
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.923

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

When I kill the allocating process 0.758
Then I find very few patterns in the guest's memory after 5 seconds 7.771

Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)

After features/support/hooks.rb:339 0.610
After features/support/hooks.rb:108 0.000
19.499
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 6.173
And I prepare Tails for memory erasure tests 0.478
And I find very few patterns in the guest's memory 2.501

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.378
Then patterns cover at least 99% of the test FS size in the guest's memory 2.951

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

When I umount "/mnt" 0.404
Then I find very few patterns in the guest's memory after 3 seconds 5.612

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

After features/support/hooks.rb:339 0.679
After features/support/hooks.rb:108 0.000
37.015
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 6.188
And I prepare Tails for memory erasure tests 0.428
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.409
Then I find very few patterns in the guest's memory 2.660

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.668
Then patterns cover at least 75% of the test FS size in the guest's memory 3.169

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

When I umount the USB drive 0.662
Then I find very few patterns in the guest's memory after 3 seconds 5.922

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

# read cache
When I mount the USB drive again 0.209
And I read the content of the test FS 0.675
Then patterns cover at least 99% of the test FS size in the guest's memory 2.915

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

When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.626

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

After features/support/hooks.rb:339 0.703
After features/support/hooks.rb:108 0.000
59.388
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 6.183
And I prepare Tails for memory erasure tests 0.297
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.684
Then I find very few patterns in the guest's memory 2.513

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.295
Then patterns cover at least 99% of the test FS size in the guest's memory 2.631

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

When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 5.508

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# read cache
When I mount the USB drive again 3.922
And I read the content of the test FS 0.312
Then patterns cover at least 99% of the test FS size in the guest's memory 2.652

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

When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 5.510

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

After features/support/hooks.rb:339 0.847
After features/support/hooks.rb:108 0.000
43.741
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 6.240
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the root filesystem 12.796
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.548
Then patterns cover at least 128 MiB in the guest's memory 2.079

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.765

Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)

After features/support/hooks.rb:339 3.807
After features/support/hooks.rb:108 0.000
4:15.491
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 3:44.763
And I prepare Tails for memory erasure tests 0.314
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.355
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.052

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 3.639
After features/support/hooks.rb:108 0.008