Project Number Date
test_Tails_ISO_devel 4274 12 Mar 2026, 15:22

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 7:42.688 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
19.475
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.864
And I prepare Tails for memory erasure tests 0.409
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.242 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 7.506 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.910
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
21.098
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 7.111
And I prepare Tails for memory erasure tests 0.500
And I find very few patterns in the guest's memory 2.834 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.368
Then patterns cover at least 99% of the test FS size in the guest's memory 2.194 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.811
Then I find very few patterns in the guest's memory after 3 seconds 5.277 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.981
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.143
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.792
And I prepare Tails for memory erasure tests 0.396
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.372
Then I find very few patterns in the guest's memory 2.073 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.623
Then patterns cover at least 75% of the test FS size in the guest's memory 2.420 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.207
Then I find very few patterns in the guest's memory after 3 seconds 5.040 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.176
And I read the content of the test FS 0.422
Then patterns cover at least 99% of the test FS size in the guest's memory 2.310 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.298
Then I find very few patterns in the guest's memory after 3 seconds 5.009 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.988
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:9.948
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.978
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.731
Then I find very few patterns in the guest's memory 1.956 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.048
Then patterns cover at least 99% of the test FS size in the guest's memory 2.374 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.686
Then I find very few patterns in the guest's memory after 3 seconds 5.048 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 15.730
And I read the content of the test FS 0.338
Then patterns cover at least 99% of the test FS size in the guest's memory 2.203 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.956 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.868
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.741
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 6.757
And I prepare Tails for memory erasure tests 0.410
When I fill a 128 MiB file with a known pattern on the root filesystem 13.728
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.637
Then patterns cover at least 128 MiB in the guest's memory 1.633 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.566 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.963
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.279
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.527
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.353
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.984 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 3.567
After features/support/hooks.rb:100 0.027