Project Number Date
test_Tails_ISO_21565-flatpak-safe 32 12 Sep 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 7:15.388 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.
19.468
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 6.199
And I prepare Tails for memory erasure tests 0.286
When I start a process allocating 128 MiB of memory with a known pattern 2.173
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.846

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

When I kill the allocating process 0.242
Then I find very few patterns in the guest's memory after 5 seconds 7.719

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

After features/support/hooks.rb:339 0.710
After features/support/hooks.rb:108 0.000
19.623
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 6.178
And I prepare Tails for memory erasure tests 0.313
And I find very few patterns in the guest's memory 2.619

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.482
Then patterns cover at least 99% of the test FS size in the guest's memory 3.053

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

When I umount "/mnt" 0.352
Then I find very few patterns in the guest's memory after 3 seconds 5.621

Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)

After features/support/hooks.rb:339 0.559
After features/support/hooks.rb:108 0.000
36.061
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 6.201
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.120
Then I find very few patterns in the guest's memory 2.744

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.449
Then patterns cover at least 75% of the test FS size in the guest's memory 2.975

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

When I umount the USB drive 0.622
Then I find very few patterns in the guest's memory after 3 seconds 5.810

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.540
Then patterns cover at least 99% of the test FS size in the guest's memory 2.902

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

When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 5.717

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 0.681
After features/support/hooks.rb:108 0.000
59.956
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.156
And I prepare Tails for memory erasure tests 0.279
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.180
Then I find very few patterns in the guest's memory 2.575

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.057
Then patterns cover at least 99% of the test FS size in the guest's memory 2.704

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

When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.681

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

# read cache
When I mount the USB drive again 3.842
And I read the content of the test FS 0.337
Then patterns cover at least 99% of the test FS size in the guest's memory 2.759

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

When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.517

Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)

After features/support/hooks.rb:339 0.787
After features/support/hooks.rb:108 0.000
43.861
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.224
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the root filesystem 13.259
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.251
Then patterns cover at least 128 MiB in the guest's memory 2.119

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 20.706

Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)

After features/support/hooks.rb:339 3.675
After features/support/hooks.rb:108 0.000
4:16.417
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 3:45.423
And I prepare Tails for memory erasure tests 0.271
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.626
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.091

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

After features/support/hooks.rb:339 3.715
After features/support/hooks.rb:108 0.008