Project Number Date
test_Tails_ISO_stable-flatpak 42 10 Oct 2026, 19:41

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 7:25.381 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.
19.650
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 6.290
And I prepare Tails for memory erasure tests 0.269
When I start a process allocating 128 MiB of memory with a known pattern 2.245
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.879

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

When I kill the allocating process 0.185
Then I find very few patterns in the guest's memory after 5 seconds 7.779

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

After features/support/hooks.rb:339 0.578
After features/support/hooks.rb:108 0.000
19.984
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 6.281
And I prepare Tails for memory erasure tests 0.306
And I find very few patterns in the guest's memory 2.813

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.368
Then patterns cover at least 99% of the test FS size in the guest's memory 2.884

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

When I umount "/mnt" 0.364
Then I find very few patterns in the guest's memory after 3 seconds 5.964

Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)

After features/support/hooks.rb:339 0.743
After features/support/hooks.rb:108 0.000
36.356
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 6.117
And I prepare Tails for memory erasure tests 0.286
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.213
Then I find very few patterns in the guest's memory 2.686

Pattern coverage: 0.000% (0 MiB out of 1398 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 3.387

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

When I umount the USB drive 0.717
Then I find very few patterns in the guest's memory after 3 seconds 5.629

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

# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.496
Then patterns cover at least 99% of the test FS size in the guest's memory 2.997

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

When I umount the USB drive 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.602

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

After features/support/hooks.rb:339 0.829
After features/support/hooks.rb:108 0.000
1:11.566
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 17.830
And I prepare Tails for memory erasure tests 0.282
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.464
Then I find very few patterns in the guest's memory 2.569

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

# write cache
When I fill the USB drive with a known pattern 0.976
Then patterns cover at least 99% of the test FS size in the guest's memory 2.621

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

When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 5.440

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

# read cache
When I mount the USB drive again 3.820
And I read the content of the test FS 0.334
Then patterns cover at least 99% of the test FS size in the guest's memory 2.832

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 5.508

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

After features/support/hooks.rb:339 0.728
After features/support/hooks.rb:108 0.000
43.313
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 6.091
And I prepare Tails for memory erasure tests 0.284
When I fill a 128 MiB file with a known pattern on the root filesystem 12.475
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.430
Then patterns cover at least 128 MiB in the guest's memory 2.248

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 20.777

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

After features/support/hooks.rb:339 3.718
After features/support/hooks.rb:108 0.000
4:14.510
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 3:42.804
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.272
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.133

Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)

After features/support/hooks.rb:339 3.648
After features/support/hooks.rb:108 0.009