Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 22 13 May 2026, 14:15

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 7:19.707 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.
17.940
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.525
And I prepare Tails for memory erasure tests 0.301
When I start a process allocating 128 MiB of memory with a known pattern 2.227
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.824

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

When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 6.851

Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)

After features/support/hooks.rb:335 0.848
After features/support/hooks.rb:104 0.000
17.344
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.612
And I prepare Tails for memory erasure tests 0.317
And I find very few patterns in the guest's memory 1.714

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.644
Then patterns cover at least 99% of the test FS size in the guest's memory 1.870

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

When I umount "/mnt" 0.418
Then I find very few patterns in the guest's memory after 3 seconds 4.766

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:335 1.022
After features/support/hooks.rb:104 0.000
31.799
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.549
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.191
Then I find very few patterns in the guest's memory 1.754

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.642
Then patterns cover at least 75% of the test FS size in the guest's memory 2.029

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

When I umount the USB drive 0.771
Then I find very few patterns in the guest's memory after 3 seconds 4.799

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.426
Then patterns cover at least 99% of the test FS size in the guest's memory 1.909

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

When I umount the USB drive 0.448
Then I find very few patterns in the guest's memory after 3 seconds 4.701

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

After features/support/hooks.rb:335 0.987
After features/support/hooks.rb:104 0.000
59.167
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.610
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.169
Then I find very few patterns in the guest's memory 1.663

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.260
Then patterns cover at least 99% of the test FS size in the guest's memory 1.730

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

When I umount the USB drive 0.494
Then I find very few patterns in the guest's memory after 3 seconds 4.654

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# read cache
When I mount the USB drive again 5.011
And I read the content of the test FS 0.342
Then patterns cover at least 99% of the test FS size in the guest's memory 1.774

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

When I umount the USB drive 0.463
Then I find very few patterns in the guest's memory after 3 seconds 4.559

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

After features/support/hooks.rb:335 0.607
After features/support/hooks.rb:104 0.000
55.563
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.416
And I prepare Tails for memory erasure tests 0.450
When I fill a 128 MiB file with a known pattern on the root filesystem 25.130
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.707
Then patterns cover at least 128 MiB in the guest's memory 1.342

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

When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.507

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:335 3.474
After features/support/hooks.rb:104 0.000
4:17.892
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:39.141
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.588
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.842

Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)

After features/support/hooks.rb:335 3.830
After features/support/hooks.rb:104 0.009