Project Number Date
test_Tails_ISO_devel 4232 15 Feb 2026, 11:55

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 7:31.794 Passed
Tags: @product @slow @not_release_blocker
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.
Tags: @product @slow @not_release_blocker
18.312
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.626
And I prepare Tails for memory erasure tests 0.426
When I start a process allocating 128 MiB of memory with a known pattern 2.272
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.005 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.252
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.926
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.990
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.701
And I prepare Tails for memory erasure tests 0.382
And I find very few patterns in the guest's memory 1.865 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.420
Then patterns cover at least 99% of the test FS size in the guest's memory 2.035 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.849
Then I find very few patterns in the guest's memory after 3 seconds 4.735 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.844
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.658
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.590
And I prepare Tails for memory erasure tests 0.338
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.287
Then I find very few patterns in the guest's memory 1.785 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.923
Then patterns cover at least 75% of the test FS size in the guest's memory 1.908 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.303
Then I find very few patterns in the guest's memory after 3 seconds 4.745 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.551
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.322
Then I find very few patterns in the guest's memory after 3 seconds 4.750 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.695
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.441
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.518
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" 29.737
Then I find very few patterns in the guest's memory 1.783 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.071
Then patterns cover at least 99% of the test FS size in the guest's memory 1.862 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.609
Then I find very few patterns in the guest's memory after 3 seconds 4.566 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 9.758
And I read the content of the test FS 0.307
Then patterns cover at least 99% of the test FS size in the guest's memory 1.828 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.484
Then I find very few patterns in the guest's memory after 3 seconds 4.581 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.976
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.854
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.624
And I prepare Tails for memory erasure tests 0.545
When I fill a 128 MiB file with a known pattern on the root filesystem 13.911
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.651
Then patterns cover at least 128 MiB in the guest's memory 1.598 
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 20.517 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.995
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.536
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.061
And I prepare Tails for memory erasure tests 0.476
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.105
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.884 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.726
After features/support/hooks.rb:100 0.009