Project Number Date
test_Tails_ISO_21565-flatpak-safe 97 23 Oct 2026, 03:26

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 7:24.688 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.
19.678
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.416
And I prepare Tails for memory erasure tests 0.322
When I start a process allocating 128 MiB of memory with a known pattern 2.211
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.845

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

When I kill the allocating process 0.203
Then I find very few patterns in the guest's memory after 5 seconds 7.677

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.613
After features/support/hooks.rb:108 0.000
20.503
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.330
And I prepare Tails for memory erasure tests 0.340
And I find very few patterns in the guest's memory 2.646

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.385
Then patterns cover at least 99% of the test FS size in the guest's memory 3.686

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

When I umount "/mnt" 0.380
Then I find very few patterns in the guest's memory after 3 seconds 5.733

Pattern coverage: 0.000% (0 MiB out of 1411 MiB reference memory)

After features/support/hooks.rb:339 0.727
After features/support/hooks.rb:108 0.000
37.563
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.261
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.366
Then I find very few patterns in the guest's memory 2.913

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.575
Then patterns cover at least 75% of the test FS size in the guest's memory 3.037

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

When I umount the USB drive 0.629
Then I find very few patterns in the guest's memory after 3 seconds 5.493

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.576
Then patterns cover at least 99% of the test FS size in the guest's memory 2.923

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

When I umount the USB drive 0.553
Then I find very few patterns in the guest's memory after 3 seconds 5.766

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 0.696
After features/support/hooks.rb:108 0.000
1:1.076
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.298
And I prepare Tails for memory erasure tests 0.296
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.019
Then I find very few patterns in the guest's memory 2.629

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.225
Then patterns cover at least 99% of the test FS size in the guest's memory 2.889

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

When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.552

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

# read cache
When I mount the USB drive again 3.721
And I read the content of the test FS 0.327
Then patterns cover at least 99% of the test FS size in the guest's memory 3.657

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

When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 5.483

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.708
After features/support/hooks.rb:108 0.000
43.289
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.202
And I prepare Tails for memory erasure tests 0.282
When I fill a 128 MiB file with a known pattern on the root filesystem 12.116
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.662
Then patterns cover at least 128 MiB in the guest's memory 2.293

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.728

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 3.723
After features/support/hooks.rb:108 0.000
4:22.577
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.464
And I prepare Tails for memory erasure tests 0.260
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.638
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.208

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 3.649
After features/support/hooks.rb:108 0.009