Project Number Date
test_Tails_ISO_21565-flatpak-safe 99 25 Oct 2026, 03:37

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 7:15.116 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.
19.441
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 6.144
And I prepare Tails for memory erasure tests 0.273
When I start a process allocating 128 MiB of memory with a known pattern 2.253
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.944

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

When I kill the allocating process 0.178
Then I find very few patterns in the guest's memory after 5 seconds 7.646

Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)

After features/support/hooks.rb:339 0.774
After features/support/hooks.rb:108 0.000
19.693
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 6.115
And I prepare Tails for memory erasure tests 0.280
And I find very few patterns in the guest's memory 2.893

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.402
Then patterns cover at least 99% of the test FS size in the guest's memory 2.946

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

When I umount "/mnt" 0.362
Then I find very few patterns in the guest's memory after 3 seconds 5.692

Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)

After features/support/hooks.rb:339 1.008
After features/support/hooks.rb:108 0.000
36.026
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 6.113
And I prepare Tails for memory erasure tests 0.261
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.419
Then I find very few patterns in the guest's memory 2.653

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

# write cache
When I fill the USB drive with a known pattern 2.591
Then patterns cover at least 75% of the test FS size in the guest's memory 2.986

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

When I umount the USB drive 0.641
Then I find very few patterns in the guest's memory after 3 seconds 5.762

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

# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.651
Then patterns cover at least 99% of the test FS size in the guest's memory 2.929

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

When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 5.409

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

After features/support/hooks.rb:339 0.702
After features/support/hooks.rb:108 0.000
59.417
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 6.131
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.798
Then I find very few patterns in the guest's memory 2.594

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.121
Then patterns cover at least 99% of the test FS size in the guest's memory 2.672

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

When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 5.532

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

# read cache
When I mount the USB drive again 3.652
And I read the content of the test FS 0.319
Then patterns cover at least 99% of the test FS size in the guest's memory 2.795

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

When I umount the USB drive 0.361
Then I find very few patterns in the guest's memory after 3 seconds 5.641

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 0.893
After features/support/hooks.rb:108 0.000
44.221
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 6.077
And I prepare Tails for memory erasure tests 0.266
When I fill a 128 MiB file with a known pattern on the root filesystem 13.527
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.409
Then patterns cover at least 128 MiB in the guest's memory 2.137

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

When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.795

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 3.777
After features/support/hooks.rb:108 0.000
4:16.315
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 3:44.603
And I prepare Tails for memory erasure tests 0.238
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.371
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.096

Pattern coverage: 0.000% (0 MiB out of 1448 MiB reference memory)

After features/support/hooks.rb:339 3.812
After features/support/hooks.rb:108 0.009