Project Number Date
test_Tails_ISO_21565-flatpak-safe 7 22 Aug 2026, 03:15

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 7:14.383 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.
19.501
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 6.414
And I prepare Tails for memory erasure tests 0.292
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.755

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

When I kill the allocating process 0.194
Then I find very few patterns in the guest's memory after 5 seconds 7.651

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:339 0.733
After features/support/hooks.rb:108 0.000
19.355
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 6.290
And I prepare Tails for memory erasure tests 0.277
And I find very few patterns in the guest's memory 2.688

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.345
Then patterns cover at least 99% of the test FS size in the guest's memory 2.753

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

When I umount "/mnt" 0.337
Then I find very few patterns in the guest's memory after 3 seconds 5.661

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

After features/support/hooks.rb:339 0.881
After features/support/hooks.rb:108 0.000
35.667
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 6.143
And I prepare Tails for memory erasure tests 0.279
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.093
Then I find very few patterns in the guest's memory 2.730

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.418
Then patterns cover at least 75% of the test FS size in the guest's memory 2.901

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

When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory after 3 seconds 5.624

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# read cache
When I mount the USB drive again 0.171
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 2.868

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

When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 5.765

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

After features/support/hooks.rb:339 0.557
After features/support/hooks.rb:108 0.000
59.794
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 6.179
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.224
Then I find very few patterns in the guest's memory 2.699

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

# write cache
When I fill the USB drive with a known pattern 1.107
Then patterns cover at least 99% of the test FS size in the guest's memory 2.725

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

When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.410

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

# read cache
When I mount the USB drive again 4.005
And I read the content of the test FS 0.323
Then patterns cover at least 99% of the test FS size in the guest's memory 2.578

Pattern coverage: 106.115% (97 MiB out of 91 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 5.387

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

After features/support/hooks.rb:339 0.960
After features/support/hooks.rb:108 0.000
43.488
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 6.339
And I prepare Tails for memory erasure tests 0.299
When I fill a 128 MiB file with a known pattern on the root filesystem 12.793
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.297
Then patterns cover at least 128 MiB in the guest's memory 2.091

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 20.663

Pattern coverage: 0.000% (0 MiB out of 1456 MiB reference memory)

After features/support/hooks.rb:339 3.593
After features/support/hooks.rb:108 0.000
4:16.575
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 3:45.019
And I prepare Tails for memory erasure tests 0.229
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.392
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.929

Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)

After features/support/hooks.rb:339 3.607
After features/support/hooks.rb:108 0.010