Project Number Date
test_Tails_ISO_21565-flatpak-safe 65 04 Oct 2026, 03:30

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 7:48.335 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.
21.323
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 7.019
And I prepare Tails for memory erasure tests 0.266
When I start a process allocating 128 MiB of memory with a known pattern 2.208
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.406

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

When I kill the allocating process 0.206
Then I find very few patterns in the guest's memory after 5 seconds 8.217

Pattern coverage: 0.000% (0 MiB out of 1426 MiB reference memory)

After features/support/hooks.rb:339 0.894
After features/support/hooks.rb:108 0.000
28.978
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 6.629
And I prepare Tails for memory erasure tests 0.321
And I find very few patterns in the guest's memory 4.204

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.557
Then patterns cover at least 99% of the test FS size in the guest's memory 6.837

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

When I umount "/mnt" 0.529
Then I find very few patterns in the guest's memory after 3 seconds 8.898

Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)

After features/support/hooks.rb:339 0.764
After features/support/hooks.rb:108 0.000
43.322
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 6.600
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.466
Then I find very few patterns in the guest's memory 5.071

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.676
Then patterns cover at least 75% of the test FS size in the guest's memory 4.342

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

When I umount the USB drive 0.697
Then I find very few patterns in the guest's memory after 3 seconds 7.047

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 0.561
Then patterns cover at least 99% of the test FS size in the guest's memory 3.674

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

When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory after 3 seconds 6.220

Pattern coverage: 0.000% (0 MiB out of 1422 MiB reference memory)

After features/support/hooks.rb:339 0.934
After features/support/hooks.rb:108 0.000
1:1.966
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.791
And I prepare Tails for memory erasure tests 0.266
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.877
Then I find very few patterns in the guest's memory 2.753

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.390
Then patterns cover at least 99% of the test FS size in the guest's memory 2.788

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

When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 5.695

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

# read cache
When I mount the USB drive again 4.016
And I read the content of the test FS 0.312
Then patterns cover at least 99% of the test FS size in the guest's memory 2.637

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

When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 5.437

Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)

After features/support/hooks.rb:339 0.777
After features/support/hooks.rb:108 0.000
45.166
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 6.703
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the root filesystem 13.139
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.718
Then patterns cover at least 128 MiB in the guest's memory 2.540

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 20.763

Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)

After features/support/hooks.rb:339 3.374
After features/support/hooks.rb:108 0.000
4:27.578
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 3:56.454
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.576
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.228

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

After features/support/hooks.rb:339 3.640
After features/support/hooks.rb:108 0.010