Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 11 06 May 2026, 20:22

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 7:14.115 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.
17.752
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 6.455
And I prepare Tails for memory erasure tests 0.304
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.948

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

When I kill the allocating process 0.181
Then I find very few patterns in the guest's memory after 5 seconds 6.670

Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)

After features/support/hooks.rb:331 0.957
After features/support/hooks.rb:100 0.000
16.864
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 6.354
And I prepare Tails for memory erasure tests 0.306
And I find very few patterns in the guest's memory 1.660

Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.722
Then patterns cover at least 99% of the test FS size in the guest's memory 1.906

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

When I umount "/mnt" 0.358
Then I find very few patterns in the guest's memory after 3 seconds 4.555

Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)

After features/support/hooks.rb:331 0.843
After features/support/hooks.rb:100 0.000
31.354
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 6.553
And I prepare Tails for memory erasure tests 0.303
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.055
Then I find very few patterns in the guest's memory 1.766

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.638
Then patterns cover at least 75% of the test FS size in the guest's memory 1.884

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

When I umount the USB drive 0.684
Then I find very few patterns in the guest's memory after 3 seconds 4.735

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

# read cache
When I mount the USB drive again 0.133
And I read the content of the test FS 0.445
Then patterns cover at least 99% of the test FS size in the guest's memory 2.001

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

When I umount the USB drive 0.394
Then I find very few patterns in the guest's memory after 3 seconds 4.758

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

After features/support/hooks.rb:331 0.992
After features/support/hooks.rb:100 0.000
56.805
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 6.399
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.068
Then I find very few patterns in the guest's memory 1.617

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.307
Then patterns cover at least 99% of the test FS size in the guest's memory 1.804

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

When I umount the USB drive 0.598
Then I find very few patterns in the guest's memory after 3 seconds 4.542

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

# read cache
When I mount the USB drive again 4.273
And I read the content of the test FS 0.270
Then patterns cover at least 99% of the test FS size in the guest's memory 1.693

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

When I umount the USB drive 0.375
Then I find very few patterns in the guest's memory after 3 seconds 4.539

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

After features/support/hooks.rb:331 0.930
After features/support/hooks.rb:100 0.000
59.772
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 6.484
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the root filesystem 29.398
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.596
Then patterns cover at least 128 MiB in the guest's memory 1.462

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

When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.495

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

After features/support/hooks.rb:331 3.790
After features/support/hooks.rb:100 0.000
4:11.566
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 3:30.984
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.250
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.963

Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)

After features/support/hooks.rb:331 3.716
After features/support/hooks.rb:100 0.008