Project Number Date
test_Tails_ISO_21565-flatpak-safe 66 05 Oct 2026, 03:24

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 7:19.541 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.
19.734
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.223
And I prepare Tails for memory erasure tests 0.302
When I start a process allocating 128 MiB of memory with a known pattern 2.238
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.956

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

When I kill the allocating process 0.187
Then I find very few patterns in the guest's memory after 5 seconds 7.825

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

After features/support/hooks.rb:339 1.033
After features/support/hooks.rb:108 0.000
19.830
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.253
And I prepare Tails for memory erasure tests 0.317
And I find very few patterns in the guest's memory 2.737

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.567
Then patterns cover at least 99% of the test FS size in the guest's memory 2.848

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

When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.726

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

After features/support/hooks.rb:339 0.892
After features/support/hooks.rb:108 0.000
36.056
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.301
And I prepare Tails for memory erasure tests 0.311
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.241
Then I find very few patterns in the guest's memory 2.679

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.689
Then patterns cover at least 75% of the test FS size in the guest's memory 2.746

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

When I umount the USB drive 0.714
Then I find very few patterns in the guest's memory after 3 seconds 5.729

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# read cache
When I mount the USB drive again 0.160
And I read the content of the test FS 0.518
Then patterns cover at least 99% of the test FS size in the guest's memory 2.972

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

When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 5.577

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.672
After features/support/hooks.rb:108 0.000
1:0.350
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.120
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.334
Then I find very few patterns in the guest's memory 2.548

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

# write cache
When I fill the USB drive with a known pattern 1.217
Then patterns cover at least 99% of the test FS size in the guest's memory 2.626

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

When I umount the USB drive 0.477
Then I find very few patterns in the guest's memory after 3 seconds 5.510

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

# read cache
When I mount the USB drive again 3.851
And I read the content of the test FS 0.329
Then patterns cover at least 99% of the test FS size in the guest's memory 2.916

Pattern coverage: 106.115% (97 MiB out of 91 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 5.710

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

After features/support/hooks.rb:339 0.946
After features/support/hooks.rb:108 0.000
43.775
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.205
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the root filesystem 12.440
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.534
Then patterns cover at least 128 MiB in the guest's memory 2.150

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.047

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

After features/support/hooks.rb:339 3.772
After features/support/hooks.rb:108 0.000
4:19.793
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.692
And I prepare Tails for memory erasure tests 0.210
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.730
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.155

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

After features/support/hooks.rb:339 3.410
After features/support/hooks.rb:108 0.053