Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 68 20 Jun 2026, 14:52

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 8:6.784 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.
19.349
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.034
Given I have started Tails from DVD without network and logged in 6.876
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 2.277
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.564

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

When I kill the allocating process 0.257
Then I find very few patterns in the guest's memory after 5 seconds 6.968

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:339 0.959
After features/support/hooks.rb:108 0.000
19.018
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.976
And I prepare Tails for memory erasure tests 0.345
And I find very few patterns in the guest's memory 2.101

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.086
Then patterns cover at least 99% of the test FS size in the guest's memory 2.262

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

When I umount "/mnt" 0.340
Then I find very few patterns in the guest's memory after 3 seconds 4.906

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:339 0.789
After features/support/hooks.rb:108 0.000
33.987
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 7.018
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.172
Then I find very few patterns in the guest's memory 2.063

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

# write cache
When I fill the USB drive with a known pattern 2.729
Then patterns cover at least 75% of the test FS size in the guest's memory 2.046

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

When I umount the USB drive 0.716
Then I find very few patterns in the guest's memory after 3 seconds 4.782

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

# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.417
Then patterns cover at least 99% of the test FS size in the guest's memory 2.042

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

When I umount the USB drive 0.362
Then I find very few patterns in the guest's memory after 3 seconds 5.129

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

After features/support/hooks.rb:339 0.976
After features/support/hooks.rb:108 0.000
1:0.370
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.015
Given I have started Tails from DVD without network and logged in 7.225
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.330
Then I find very few patterns in the guest's memory 1.824

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

# write cache
When I fill the USB drive with a known pattern 1.508
Then patterns cover at least 99% of the test FS size in the guest's memory 2.063

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

When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 4.583

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

# read cache
When I mount the USB drive again 4.430
And I read the content of the test FS 0.303
Then patterns cover at least 99% of the test FS size in the guest's memory 2.034

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

When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 4.769

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

After features/support/hooks.rb:339 1.031
After features/support/hooks.rb:108 0.003
51.495
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.124
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the root filesystem 20.220
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.616
Then patterns cover at least 128 MiB in the guest's memory 1.576

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 20.562

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 3.605
After features/support/hooks.rb:108 0.000
5:2.562
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.038
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:23.448
And I prepare Tails for memory erasure tests 0.437
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.611
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.057

Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)

After features/support/hooks.rb:339 3.766
After features/support/hooks.rb:108 0.055