Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 8 03 May 2026, 22:46

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 7:34.496 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.
17.635
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.471
And I prepare Tails for memory erasure tests 0.340
When I start a process allocating 128 MiB of memory with a known pattern 2.241
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.804

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

When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 6.572

Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)

After features/support/hooks.rb:331 0.596
After features/support/hooks.rb:100 0.000
17.279
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.573
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 1.668

Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.719
Then patterns cover at least 99% of the test FS size in the guest's memory 1.882

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

When I umount "/mnt" 0.368
Then I find very few patterns in the guest's memory after 3 seconds 4.687

Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)

After features/support/hooks.rb:331 0.970
After features/support/hooks.rb:100 0.000
31.733
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.705
And I prepare Tails for memory erasure tests 0.342
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.255
Then I find very few patterns in the guest's memory 1.685

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

# write cache
When I fill the USB drive with a known pattern 2.581
Then patterns cover at least 75% of the test FS size in the guest's memory 1.858

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

When I umount the USB drive 0.833
Then I find very few patterns in the guest's memory after 3 seconds 4.808

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

# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.463
Then patterns cover at least 99% of the test FS size in the guest's memory 1.821

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

When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 4.840

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

After features/support/hooks.rb:331 1.057
After features/support/hooks.rb:100 0.000
55.972
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.482
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.229
Then I find very few patterns in the guest's memory 1.698

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.322
Then patterns cover at least 99% of the test FS size in the guest's memory 1.637

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

When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.558

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

# read cache
When I mount the USB drive again 4.100
And I read the content of the test FS 0.275
Then patterns cover at least 99% of the test FS size in the guest's memory 1.775

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 4.677

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

After features/support/hooks.rb:331 0.825
After features/support/hooks.rb:100 0.001
59.674
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 6.553
And I prepare Tails for memory erasure tests 0.339
When I fill a 128 MiB file with a known pattern on the root filesystem 28.935
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.789
Then patterns cover at least 128 MiB in the guest's memory 1.470

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

When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.575

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

After features/support/hooks.rb:331 3.455
After features/support/hooks.rb:100 0.000
4:32.201
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.590
And I prepare Tails for memory erasure tests 0.319
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.322
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.962

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

After features/support/hooks.rb:331 3.569
After features/support/hooks.rb:100 0.014