Project Number Date
test_Tails_ISO_stable-flatpak 55 24 Oct 2026, 19:45

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 7:39.871 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.
31.512
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 18.083
And I prepare Tails for memory erasure tests 0.429
When I start a process allocating 128 MiB of memory with a known pattern 2.255
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.842

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 7.725

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.743
After features/support/hooks.rb:108 0.000
19.604
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 6.204
And I prepare Tails for memory erasure tests 0.302
And I find very few patterns in the guest's memory 2.735

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.406
Then patterns cover at least 99% of the test FS size in the guest's memory 2.858

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

When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 5.732

Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)

After features/support/hooks.rb:339 0.579
After features/support/hooks.rb:108 0.000
36.552
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 6.530
And I prepare Tails for memory erasure tests 0.282
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.302
Then I find very few patterns in the guest's memory 2.622

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

# write cache
When I fill the USB drive with a known pattern 2.506
Then patterns cover at least 75% of the test FS size in the guest's memory 2.952

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

When I umount the USB drive 0.611
Then I find very few patterns in the guest's memory after 3 seconds 5.916

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

# read cache
When I mount the USB drive again 0.261
And I read the content of the test FS 0.530
Then patterns cover at least 99% of the test FS size in the guest's memory 2.987

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

When I umount the USB drive 0.401
Then I find very few patterns in the guest's memory after 3 seconds 5.645

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

After features/support/hooks.rb:339 0.670
After features/support/hooks.rb:108 0.000
1:0.038
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 6.390
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" 28.368
Then I find very few patterns in the guest's memory 2.437

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.043
Then patterns cover at least 99% of the test FS size in the guest's memory 2.751

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

When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 5.627

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

# read cache
When I mount the USB drive again 3.901
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 2.645

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

When I umount the USB drive 0.396
Then I find very few patterns in the guest's memory after 3 seconds 5.408

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.714
After features/support/hooks.rb:108 0.000
44.760
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 6.364
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the root filesystem 12.975
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.650
Then patterns cover at least 128 MiB in the guest's memory 2.573

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 20.840

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

After features/support/hooks.rb:339 3.796
After features/support/hooks.rb:108 0.000
4:27.403
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 3:55.302
And I prepare Tails for memory erasure tests 0.302
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.643
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.150

Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)

After features/support/hooks.rb:339 3.808
After features/support/hooks.rb:108 0.011