Project Number Date
test_Tails_ISO_21565-flatpak-safe 83 10 Oct 2026, 03:25

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 7:28.911 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.
20.342
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 6.462
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 2.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.816

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

When I kill the allocating process 0.191
Then I find very few patterns in the guest's memory after 5 seconds 8.354

Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)

After features/support/hooks.rb:339 0.840
After features/support/hooks.rb:108 0.000
19.901
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 6.469
And I prepare Tails for memory erasure tests 0.371
And I find very few patterns in the guest's memory 2.631

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.371
Then patterns cover at least 99% of the test FS size in the guest's memory 2.839

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

When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.840

Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)

After features/support/hooks.rb:339 0.840
After features/support/hooks.rb:108 0.000
36.856
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 6.344
And I prepare Tails for memory erasure tests 0.351
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.350
Then I find very few patterns in the guest's memory 2.705

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.749
Then patterns cover at least 75% of the test FS size in the guest's memory 3.088

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

When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory after 3 seconds 5.775

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.612
Then patterns cover at least 99% of the test FS size in the guest's memory 2.915

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

When I umount the USB drive 0.386
Then I find very few patterns in the guest's memory after 3 seconds 5.673

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 1.079
After features/support/hooks.rb:108 0.001
1:13.101
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.633
And I prepare Tails for memory erasure tests 0.284
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.301
Then I find very few patterns in the guest's memory 4.273

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

# write cache
When I fill the USB drive with a known pattern 1.226
Then patterns cover at least 99% of the test FS size in the guest's memory 4.812

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

When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory after 3 seconds 7.365

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

# read cache
When I mount the USB drive again 3.676
And I read the content of the test FS 0.390
Then patterns cover at least 99% of the test FS size in the guest's memory 4.844

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

When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory after 3 seconds 7.336

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

After features/support/hooks.rb:339 0.715
After features/support/hooks.rb:108 0.000
44.588
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 6.241
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the root filesystem 13.317
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.567
Then patterns cover at least 128 MiB in the guest's memory 2.384

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 20.735

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

After features/support/hooks.rb:339 3.471
After features/support/hooks.rb:108 0.000
4:14.120
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 3:42.628
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.114
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.044

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:339 3.665
After features/support/hooks.rb:108 0.011