Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 78 30 Jun 2026, 14:36

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 8:12.846 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.
18.185
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.756
And I prepare Tails for memory erasure tests 0.371
When I start a process allocating 128 MiB of memory with a known pattern 2.217
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.003

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

When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 6.662

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

After features/support/hooks.rb:339 1.088
After features/support/hooks.rb:108 0.000
17.752
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 6.715
And I prepare Tails for memory erasure tests 0.396
And I find very few patterns in the guest's memory 1.763

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.760
Then patterns cover at least 99% of the test FS size in the guest's memory 2.006

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

When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 4.730

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:339 1.393
After features/support/hooks.rb:108 0.000
33.382
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 7.159
And I prepare Tails for memory erasure tests 0.416
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.389
Then I find very few patterns in the guest's memory 1.721

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.897
Then patterns cover at least 75% of the test FS size in the guest's memory 2.132

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

When I umount the USB drive 0.842
Then I find very few patterns in the guest's memory after 3 seconds 4.946

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.484
Then patterns cover at least 99% of the test FS size in the guest's memory 2.071

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

When I umount the USB drive 0.416
Then I find very few patterns in the guest's memory after 3 seconds 4.741

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:339 0.875
After features/support/hooks.rb:108 0.000
58.554
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 6.744
And I prepare Tails for memory erasure tests 0.465
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.178
Then I find very few patterns in the guest's memory 1.670

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

# write cache
When I fill the USB drive with a known pattern 1.215
Then patterns cover at least 99% of the test FS size in the guest's memory 1.845

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

When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 4.709

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

# read cache
When I mount the USB drive again 5.039
And I read the content of the test FS 0.344
Then patterns cover at least 99% of the test FS size in the guest's memory 1.819

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

When I umount the USB drive 0.390
Then I find very few patterns in the guest's memory after 3 seconds 4.642

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

After features/support/hooks.rb:339 0.751
After features/support/hooks.rb:108 0.000
1:1.698
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 6.630
And I prepare Tails for memory erasure tests 0.481
When I fill a 128 MiB file with a known pattern on the root filesystem 30.667
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.794
Then patterns cover at least 128 MiB in the guest's memory 1.565

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

When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.549

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 3.415
After features/support/hooks.rb:108 0.000
5:3.272
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 4:13.584
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.234
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.077

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

After features/support/hooks.rb:339 3.521
After features/support/hooks.rb:108 0.014