Project Number Date
test_Tails_ISO_21565-flatpak-safe 90 16 Oct 2026, 03:24

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 7:55.316 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.
20.160
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 6.345
And I prepare Tails for memory erasure tests 0.306
When I start a process allocating 128 MiB of memory with a known pattern 2.202
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.913

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

When I kill the allocating process 0.212
Then I find very few patterns in the guest's memory after 5 seconds 8.179

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 0.660
After features/support/hooks.rb:108 0.000
20.792
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 6.559
And I prepare Tails for memory erasure tests 0.372
And I find very few patterns in the guest's memory 2.765

Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.565
Then patterns cover at least 99% of the test FS size in the guest's memory 3.221

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

When I umount "/mnt" 0.446
Then I find very few patterns in the guest's memory after 3 seconds 5.860

Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)

After features/support/hooks.rb:339 0.989
After features/support/hooks.rb:108 0.000
47.051
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 6.610
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.159
Then I find very few patterns in the guest's memory 4.212

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

# write cache
When I fill the USB drive with a known pattern 2.973
Then patterns cover at least 75% of the test FS size in the guest's memory 5.440

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

When I umount the USB drive 0.701
Then I find very few patterns in the guest's memory after 3 seconds 7.777

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

# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.692
Then patterns cover at least 99% of the test FS size in the guest's memory 5.722

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

When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 6.758

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

After features/support/hooks.rb:339 0.688
After features/support/hooks.rb:108 0.000
1:10.561
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 6.314
And I prepare Tails for memory erasure tests 0.359
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.693
Then I find very few patterns in the guest's memory 4.042

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

# write cache
When I fill the USB drive with a known pattern 1.327
Then patterns cover at least 99% of the test FS size in the guest's memory 4.682

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

When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 7.964

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

# read cache
When I mount the USB drive again 4.246
And I read the content of the test FS 0.503
Then patterns cover at least 99% of the test FS size in the guest's memory 4.495

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

When I umount the USB drive 0.442
Then I find very few patterns in the guest's memory after 3 seconds 7.949

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

After features/support/hooks.rb:339 0.720
After features/support/hooks.rb:108 0.000
44.651
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 6.486
And I prepare Tails for memory erasure tests 0.291
When I fill a 128 MiB file with a known pattern on the root filesystem 12.196
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.655
Then patterns cover at least 128 MiB in the guest's memory 3.260

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

When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.751

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 3.353
After features/support/hooks.rb:108 0.000
4:32.099
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 4:0.490
And I prepare Tails for memory erasure tests 0.241
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.165
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.199

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

After features/support/hooks.rb:339 3.576
After features/support/hooks.rb:108 0.009