Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 77 29 Jun 2026, 14:53

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 8:6.900 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.
19.214
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 6.632
And I prepare Tails for memory erasure tests 0.419
When I start a process allocating 128 MiB of memory with a known pattern 2.212
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.202

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

When I kill the allocating process 0.991
Then I find very few patterns in the guest's memory after 5 seconds 6.756

Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)

After features/support/hooks.rb:339 1.082
After features/support/hooks.rb:108 0.000
18.252
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 6.718
And I prepare Tails for memory erasure tests 0.536
And I find very few patterns in the guest's memory 1.853

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.870
Then patterns cover at least 99% of the test FS size in the guest's memory 2.240

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

When I umount "/mnt" 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.625

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 1.027
After features/support/hooks.rb:108 0.000
34.373
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 6.776
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.634
Then I find very few patterns in the guest's memory 1.876

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.471
Then patterns cover at least 75% of the test FS size in the guest's memory 2.030

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

When I umount the USB drive 0.712
Then I find very few patterns in the guest's memory after 3 seconds 4.767

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.716
Then patterns cover at least 99% of the test FS size in the guest's memory 2.337

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

When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.935

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

After features/support/hooks.rb:339 0.963
After features/support/hooks.rb:108 0.000
1:3.277
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 6.927
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.606
Then I find very few patterns in the guest's memory 1.779

Pattern coverage: 0.000% (0 MiB out of 1442 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.233
Then patterns cover at least 99% of the test FS size in the guest's memory 1.902

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 4.904

Pattern coverage: 0.000% (0 MiB out of 1442 MiB reference memory)

# read cache
When I mount the USB drive again 4.746
And I read the content of the test FS 0.290
Then patterns cover at least 99% of the test FS size in the guest's memory 1.755

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

When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.699

Pattern coverage: 0.000% (0 MiB out of 1442 MiB reference memory)

After features/support/hooks.rb:339 1.051
After features/support/hooks.rb:108 0.000
1:3.906
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 6.728
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the root filesystem 32.685
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.939
Then patterns cover at least 128 MiB in the guest's memory 1.551

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.605

Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)

After features/support/hooks.rb:339 3.690
After features/support/hooks.rb:108 0.000
4:47.875
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 4:1.362
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.022
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.113

Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)

After features/support/hooks.rb:339 3.440
After features/support/hooks.rb:108 0.011