Project Number Date
test_Tails_ISO_21565-flatpak-safe 21 31 Aug 2026, 16:31

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 7:39.859 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.
19.567
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 6.249
And I prepare Tails for memory erasure tests 0.298
When I start a process allocating 128 MiB of memory with a known pattern 2.164
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.905

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

When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 7.758

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:339 0.645
After features/support/hooks.rb:108 0.000
32.589
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 18.777
And I prepare Tails for memory erasure tests 0.290
And I find very few patterns in the guest's memory 2.774

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.525
Then patterns cover at least 99% of the test FS size in the guest's memory 2.839

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

When I umount "/mnt" 0.350
Then I find very few patterns in the guest's memory after 3 seconds 6.030

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:339 1.037
After features/support/hooks.rb:108 0.000
37.140
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.013
Given I have started Tails from DVD without network and logged in 6.522
And I prepare Tails for memory erasure tests 0.271
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.152
Then I find very few patterns in the guest's memory 2.679

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.541
Then patterns cover at least 75% of the test FS size in the guest's memory 3.110

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

When I umount the USB drive 0.654
Then I find very few patterns in the guest's memory after 3 seconds 5.643

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.545
Then patterns cover at least 99% of the test FS size in the guest's memory 3.754

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

When I umount the USB drive 0.376
Then I find very few patterns in the guest's memory after 3 seconds 5.720

Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)

After features/support/hooks.rb:339 0.604
After features/support/hooks.rb:108 0.000
1:1.857
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 6.521
And I prepare Tails for memory erasure tests 0.299
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.439
Then I find very few patterns in the guest's memory 2.538

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.205
Then patterns cover at least 99% of the test FS size in the guest's memory 3.366

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

When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 5.531

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

# read cache
When I mount the USB drive again 4.152
And I read the content of the test FS 0.360
Then patterns cover at least 99% of the test FS size in the guest's memory 2.665

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

When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 5.797

Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)

After features/support/hooks.rb:339 0.915
After features/support/hooks.rb:108 0.000
45.218
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 6.469
And I prepare Tails for memory erasure tests 0.303
When I fill a 128 MiB file with a known pattern on the root filesystem 13.873
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.639
Then patterns cover at least 128 MiB in the guest's memory 2.207

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 20.719

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:339 3.824
After features/support/hooks.rb:108 0.000
4:23.486
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 3:51.767
And I prepare Tails for memory erasure tests 0.304
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.402
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.007

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 3.657
After features/support/hooks.rb:108 0.019