Project Number Date
test_Tails_ISO_21565-flatpak-safe 72 06 Oct 2026, 03:20

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 7:15.291 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.
20.012
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 6.246
And I prepare Tails for memory erasure tests 0.301
When I start a process allocating 128 MiB of memory with a known pattern 2.186
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.914

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

When I kill the allocating process 0.723
Then I find very few patterns in the guest's memory after 5 seconds 7.639

Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)

After features/support/hooks.rb:339 0.708
After features/support/hooks.rb:108 0.000
19.721
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 6.191
And I prepare Tails for memory erasure tests 0.261
And I find very few patterns in the guest's memory 2.609

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.480
Then patterns cover at least 99% of the test FS size in the guest's memory 3.156

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

When I umount "/mnt" 0.376
Then I find very few patterns in the guest's memory after 3 seconds 5.645

Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)

After features/support/hooks.rb:339 1.019
After features/support/hooks.rb:108 0.000
36.449
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 6.170
And I prepare Tails for memory erasure tests 0.268
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.258
Then I find very few patterns in the guest's memory 2.896

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.527
Then patterns cover at least 75% of the test FS size in the guest's memory 3.416

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

When I umount the USB drive 0.673
Then I find very few patterns in the guest's memory after 3 seconds 5.605

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

# read cache
When I mount the USB drive again 0.133
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 2.812

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

When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 5.703

Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)

After features/support/hooks.rb:339 0.765
After features/support/hooks.rb:108 0.000
1:1.428
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 6.272
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.667
Then I find very few patterns in the guest's memory 2.667

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.109
Then patterns cover at least 99% of the test FS size in the guest's memory 2.666

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

When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.210

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

# read cache
When I mount the USB drive again 3.935
And I read the content of the test FS 0.362
Then patterns cover at least 99% of the test FS size in the guest's memory 2.865

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

When I umount the USB drive 0.402
Then I find very few patterns in the guest's memory after 3 seconds 5.478

Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)

After features/support/hooks.rb:339 0.871
After features/support/hooks.rb:108 0.000
43.882
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 6.303
And I prepare Tails for memory erasure tests 0.272
When I fill a 128 MiB file with a known pattern on the root filesystem 13.059
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.324
Then patterns cover at least 128 MiB in the guest's memory 2.147

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 20.771

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

After features/support/hooks.rb:339 3.662
After features/support/hooks.rb:108 0.000
4:13.796
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 3:42.970
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 9.486
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.075

Pattern coverage: 0.000% (0 MiB out of 1439 MiB reference memory)

After features/support/hooks.rb:339 3.924
After features/support/hooks.rb:108 0.008