Project Number Date
test_Tails_ISO_21565-flatpak-safe 51 25 Sep 2026, 03:38

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 7:18.883 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.
19.531
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 6.178
And I prepare Tails for memory erasure tests 0.274
When I start a process allocating 128 MiB of memory with a known pattern 2.223
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.774

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

When I kill the allocating process 0.192
Then I find very few patterns in the guest's memory after 5 seconds 7.888

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

After features/support/hooks.rb:339 0.728
After features/support/hooks.rb:108 0.000
19.836
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 6.258
And I prepare Tails for memory erasure tests 0.299
And I find very few patterns in the guest's memory 2.558

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.569
Then patterns cover at least 99% of the test FS size in the guest's memory 2.822

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

When I umount "/mnt" 0.452
Then I find very few patterns in the guest's memory after 3 seconds 5.874

Pattern coverage: 0.000% (0 MiB out of 1413 MiB reference memory)

After features/support/hooks.rb:339 0.890
After features/support/hooks.rb:108 0.000
36.245
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 6.196
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.146
Then I find very few patterns in the guest's memory 2.785

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.750
Then patterns cover at least 75% of the test FS size in the guest's memory 2.904

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

When I umount the USB drive 0.792
Then I find very few patterns in the guest's memory after 3 seconds 5.660

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.595
Then patterns cover at least 99% of the test FS size in the guest's memory 2.750

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

When I umount the USB drive 0.474
Then I find very few patterns in the guest's memory after 3 seconds 5.721

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.991
After features/support/hooks.rb:108 0.000
1:0.426
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 6.371
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" 28.169
Then I find very few patterns in the guest's memory 2.594

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

# write cache
When I fill the USB drive with a known pattern 1.195
Then patterns cover at least 99% of the test FS size in the guest's memory 3.145

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

When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 5.572

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

# read cache
When I mount the USB drive again 3.773
And I read the content of the test FS 0.341
Then patterns cover at least 99% of the test FS size in the guest's memory 2.657

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

When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 5.451

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

After features/support/hooks.rb:339 0.948
After features/support/hooks.rb:108 0.000
45.015
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 6.282
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the root filesystem 13.788
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.515
Then patterns cover at least 128 MiB in the guest's memory 2.181

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 20.796

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

After features/support/hooks.rb:339 3.528
After features/support/hooks.rb:108 0.000
4:17.828
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:46.132
And I prepare Tails for memory erasure tests 0.234
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.278
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.178

Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)

After features/support/hooks.rb:339 3.899
After features/support/hooks.rb:108 0.008