Project Number Date
test_Tails_ISO_add-team-sprint-template 1 21 May 2026, 12:40

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 7:51.365 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.
19.656
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.746
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.211
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.447

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

When I kill the allocating process 0.766
Then I find very few patterns in the guest's memory after 5 seconds 7.099

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

After features/support/hooks.rb:335 0.598
After features/support/hooks.rb:104 0.000
19.809
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.745
And I prepare Tails for memory erasure tests 0.374
And I find very few patterns in the guest's memory 2.810

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.761
Then patterns cover at least 99% of the test FS size in the guest's memory 2.456

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

When I umount "/mnt" 0.438
Then I find very few patterns in the guest's memory after 3 seconds 5.222

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:335 0.996
After features/support/hooks.rb:104 0.000
35.299
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.929
And I prepare Tails for memory erasure tests 0.415
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.371
Then I find very few patterns in the guest's memory 2.129

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.674
Then patterns cover at least 75% of the test FS size in the guest's memory 2.092

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

When I umount the USB drive 0.683
Then I find very few patterns in the guest's memory after 3 seconds 5.114

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# read cache
When I mount the USB drive again 0.190
And I read the content of the test FS 0.609
Then patterns cover at least 99% of the test FS size in the guest's memory 2.531

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

When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 5.158

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:335 1.008
After features/support/hooks.rb:104 0.000
57.713
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.722
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.477
Then I find very few patterns in the guest's memory 2.037

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.415
Then patterns cover at least 99% of the test FS size in the guest's memory 2.078

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

When I umount the USB drive 0.577
Then I find very few patterns in the guest's memory after 3 seconds 4.664

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

# read cache
When I mount the USB drive again 3.947
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 2.284

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

When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.391

Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)

After features/support/hooks.rb:335 0.729
After features/support/hooks.rb:104 0.000
52.359
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.216
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the root filesystem 20.571
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.870
Then patterns cover at least 128 MiB in the guest's memory 1.573

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 20.751

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:335 4.090
After features/support/hooks.rb:104 0.000
4:46.527
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 4:5.665
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.237
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.209

Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)

After features/support/hooks.rb:335 3.823
After features/support/hooks.rb:104 0.012