Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 38 21 May 2026, 15:40

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 7:55.629 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.
18.749
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 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.301

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 6.833

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:335 1.055
After features/support/hooks.rb:104 0.000
18.398
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.740
And I prepare Tails for memory erasure tests 0.416
And I find very few patterns in the guest's memory 2.006

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.855
Then patterns cover at least 99% of the test FS size in the guest's memory 2.167

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

When I umount "/mnt" 0.435
Then I find very few patterns in the guest's memory after 3 seconds 4.776

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:335 0.876
After features/support/hooks.rb:104 0.000
33.682
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 6.704
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.639
Then I find very few patterns in the guest's memory 1.946

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

# write cache
When I fill the USB drive with a known pattern 2.810
Then patterns cover at least 75% of the test FS size in the guest's memory 2.114

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

When I umount the USB drive 0.746
Then I find very few patterns in the guest's memory after 3 seconds 4.820

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

# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.416
Then patterns cover at least 99% of the test FS size in the guest's memory 2.469

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

When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 4.940

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

After features/support/hooks.rb:335 1.152
After features/support/hooks.rb:104 0.000
1:1.693
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 7.002
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.067
Then I find very few patterns in the guest's memory 2.030

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

# write cache
When I fill the USB drive with a known pattern 1.634
Then patterns cover at least 99% of the test FS size in the guest's memory 2.046

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

When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 4.900

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

# read cache
When I mount the USB drive again 5.209
And I read the content of the test FS 0.369
Then patterns cover at least 99% of the test FS size in the guest's memory 2.118

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

When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 4.834

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

After features/support/hooks.rb:335 0.753
After features/support/hooks.rb:104 0.000
57.665
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 6.683
And I prepare Tails for memory erasure tests 0.443
When I fill a 128 MiB file with a known pattern on the root filesystem 26.225
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.106
Then patterns cover at least 128 MiB in the guest's memory 1.621

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.579

Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)

After features/support/hooks.rb:335 3.448
After features/support/hooks.rb:104 0.000
4:45.439
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 4:6.079
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 18.089
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.929

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

After features/support/hooks.rb:335 3.903
After features/support/hooks.rb:104 0.013