Project Number Date
test_Tails_ISO_21565-flatpak-safe 24 03 Sep 2026, 03:18

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 7:13.509 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.
19.270
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 6.140
And I prepare Tails for memory erasure tests 0.321
When I start a process allocating 128 MiB of memory with a known pattern 2.176
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.828

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

When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 7.612

Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)

After features/support/hooks.rb:339 0.898
After features/support/hooks.rb:108 0.000
19.617
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 6.163
And I prepare Tails for memory erasure tests 0.296
And I find very few patterns in the guest's memory 2.745

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.491
Then patterns cover at least 99% of the test FS size in the guest's memory 2.841

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

When I umount "/mnt" 0.401
Then I find very few patterns in the guest's memory after 3 seconds 5.679

Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)

After features/support/hooks.rb:339 0.579
After features/support/hooks.rb:108 0.000
38.146
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.194
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.164
Then I find very few patterns in the guest's memory 2.496

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.622
Then patterns cover at least 75% of the test FS size in the guest's memory 3.363

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

When I umount the USB drive 0.733
Then I find very few patterns in the guest's memory after 3 seconds 5.648

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 2.778

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

When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 7.637

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:339 0.596
After features/support/hooks.rb:108 0.000
1:4.517
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 6.236
And I prepare Tails for memory erasure tests 0.316
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.989
Then I find very few patterns in the guest's memory 3.456

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.194
Then patterns cover at least 99% of the test FS size in the guest's memory 3.136

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

When I umount the USB drive 0.546
Then I find very few patterns in the guest's memory after 3 seconds 5.580

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

# read cache
When I mount the USB drive again 4.128
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 2.718

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

When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 5.480

Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)

After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
44.551
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 6.204
And I prepare Tails for memory erasure tests 0.285
When I fill a 128 MiB file with a known pattern on the root filesystem 13.821
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.398
Then patterns cover at least 128 MiB in the guest's memory 2.153

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.682

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 3.445
After features/support/hooks.rb:108 0.000
4:7.406
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 3:36.422
And I prepare Tails for memory erasure tests 0.260
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.716
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.995

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

After features/support/hooks.rb:339 3.739
After features/support/hooks.rb:108 0.008