Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 48 01 Jun 2026, 18:53

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 7:9.687 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.
17.835
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 6.470
And I prepare Tails for memory erasure tests 0.311
When I start a process allocating 128 MiB of memory with a known pattern 2.185
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.865

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

When I kill the allocating process 0.230
Then I find very few patterns in the guest's memory after 5 seconds 6.772

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

After features/support/hooks.rb:335 1.069
After features/support/hooks.rb:104 0.000
17.445
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 6.561
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 1.739

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.612
Then patterns cover at least 99% of the test FS size in the guest's memory 1.950

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

When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 4.855

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:335 0.794
After features/support/hooks.rb:104 0.000
31.752
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 0.345
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.104
Then I find very few patterns in the guest's memory 1.752

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.577
Then patterns cover at least 75% of the test FS size in the guest's memory 2.165

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

When I umount the USB drive 0.816
Then I find very few patterns in the guest's memory after 3 seconds 4.762

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 1.955

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

When I umount the USB drive 0.446
Then I find very few patterns in the guest's memory after 3 seconds 4.634

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

After features/support/hooks.rb:335 1.125
After features/support/hooks.rb:104 0.000
58.204
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 6.579
And I prepare Tails for memory erasure tests 0.404
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.632
Then I find very few patterns in the guest's memory 1.673

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.287
Then patterns cover at least 99% of the test FS size in the guest's memory 1.785

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

When I umount the USB drive 0.522
Then I find very few patterns in the guest's memory after 3 seconds 4.675

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

# read cache
When I mount the USB drive again 4.473
And I read the content of the test FS 0.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.828

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

When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 4.606

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

After features/support/hooks.rb:335 1.040
After features/support/hooks.rb:104 0.000
50.176
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 6.571
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 19.520
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.747
Then patterns cover at least 128 MiB in the guest's memory 1.363

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 20.549

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

After features/support/hooks.rb:335 3.411
After features/support/hooks.rb:104 0.000
4:14.272
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 3:36.331
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.740
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.888

Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)

After features/support/hooks.rb:335 3.560
After features/support/hooks.rb:104 0.008