Project Number Date
test_Tails_ISO_21195-dont-include-unused-firmware 3 26 Jul 2026, 02:38

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 7:46.850 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.
18.232
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 6.623
And I prepare Tails for memory erasure tests 0.372
When I start a process allocating 128 MiB of memory with a known pattern 2.228
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.080

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

When I kill the allocating process 0.179
Then I find very few patterns in the guest's memory after 5 seconds 6.746

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

After features/support/hooks.rb:339 1.022
After features/support/hooks.rb:108 0.000
17.497
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 6.531
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 1.767

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.680
Then patterns cover at least 99% of the test FS size in the guest's memory 1.952

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

When I umount "/mnt" 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.754

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 0.695
After features/support/hooks.rb:108 0.000
31.156
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 6.479
And I prepare Tails for memory erasure tests 0.370
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.079
Then I find very few patterns in the guest's memory 1.743

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

# write cache
When I fill the USB drive with a known pattern 2.553
Then patterns cover at least 75% of the test FS size in the guest's memory 1.913

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

When I umount the USB drive 0.734
Then I find very few patterns in the guest's memory after 3 seconds 4.649

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

# read cache
When I mount the USB drive again 0.216
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 1.934

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

When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 4.640

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

After features/support/hooks.rb:339 0.582
After features/support/hooks.rb:108 0.000
58.639
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 6.492
And I prepare Tails for memory erasure tests 0.305
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.056
Then I find very few patterns in the guest's memory 1.651

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

# write cache
When I fill the USB drive with a known pattern 1.216
Then patterns cover at least 99% of the test FS size in the guest's memory 1.812

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

When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 4.601

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

# read cache
When I mount the USB drive again 4.718
And I read the content of the test FS 0.292
Then patterns cover at least 99% of the test FS size in the guest's memory 1.936

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

When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 4.643

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

After features/support/hooks.rb:339 0.583
After features/support/hooks.rb:108 0.000
1:4.320
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 6.593
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the root filesystem 33.780
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.654
Then patterns cover at least 128 MiB in the guest's memory 1.445

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 20.478

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:339 3.743
After features/support/hooks.rb:108 0.000
4:37.004
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:46.443
And I prepare Tails for memory erasure tests 0.273
When I fill a 128 MiB file with a known pattern on the persistent filesystem 29.397
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.884

Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)

After features/support/hooks.rb:339 3.769
After features/support/hooks.rb:108 0.011