Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 30 17 May 2026, 14:09

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 7:18.114 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.
17.789
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 6.398
And I prepare Tails for memory erasure tests 0.406
When I start a process allocating 128 MiB of memory with a known pattern 2.221
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.894

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

When I kill the allocating process 0.229
Then I find very few patterns in the guest's memory after 5 seconds 6.639

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:335 1.010
After features/support/hooks.rb:104 0.000
17.341
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 0.366
And I find very few patterns in the guest's memory 1.572

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.684
Then patterns cover at least 99% of the test FS size in the guest's memory 2.040

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

When I umount "/mnt" 0.361
Then I find very few patterns in the guest's memory after 3 seconds 4.704

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:335 0.880
After features/support/hooks.rb:104 0.000
31.585
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 6.522
And I prepare Tails for memory erasure tests 0.525
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.286
Then I find very few patterns in the guest's memory 1.791

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.568
Then patterns cover at least 75% of the test FS size in the guest's memory 1.900

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

When I umount the USB drive 0.691
Then I find very few patterns in the guest's memory after 3 seconds 4.698

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

# read cache
When I mount the USB drive again 0.151
And I read the content of the test FS 0.363
Then patterns cover at least 99% of the test FS size in the guest's memory 1.950

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

When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 4.746

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:335 0.932
After features/support/hooks.rb:104 0.000
56.181
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 6.527
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.061
Then I find very few patterns in the guest's memory 1.761

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.298
Then patterns cover at least 99% of the test FS size in the guest's memory 1.885

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

When I umount the USB drive 0.514
Then I find very few patterns in the guest's memory after 3 seconds 4.591

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

# read cache
When I mount the USB drive again 4.181
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.704

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

When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 4.646

Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)

After features/support/hooks.rb:335 0.628
After features/support/hooks.rb:104 0.000
53.508
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 6.646
And I prepare Tails for memory erasure tests 0.352
When I fill a 128 MiB file with a known pattern on the root filesystem 22.759
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.775
Then patterns cover at least 128 MiB in the guest's memory 1.447

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 20.520

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

After features/support/hooks.rb:335 3.542
After features/support/hooks.rb:104 0.000
4:21.708
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:43.422
And I prepare Tails for memory erasure tests 0.335
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.124
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.821

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

After features/support/hooks.rb:335 3.543
After features/support/hooks.rb:104 0.012