Project Number Date
test_Tails_ISO_stable 5946 12 Nov 2025, 12:48

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 15:53.464 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
50.215
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 8.768
And I prepare Tails for memory erasure tests 0.447
When I start a process allocating 128 MiB of memory with a known pattern 2.282
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.646 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.936
Then I find very few patterns in the guest's memory after 5 seconds 21.133 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.775
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.563
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 8.554
And I prepare Tails for memory erasure tests 0.381
And I find very few patterns in the guest's memory 14.208 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.884
Then patterns cover at least 99% of the test FS size in the guest's memory 15.095 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.440
Then I find very few patterns in the guest's memory after 3 seconds 17.998 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 1.062
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:31.181
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 8.865
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.660
Then I find very few patterns in the guest's memory 14.349 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.693
Then patterns cover at least 75% of the test FS size in the guest's memory 20.785 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.154
Then I find very few patterns in the guest's memory after 3 seconds 26.125 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
# read cache
When I mount the USB drive again 0.202
And I read the content of the test FS 0.885
Then patterns cover at least 99% of the test FS size in the guest's memory 33.093 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.529
Then I find very few patterns in the guest's memory after 3 seconds 34.452 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 0.948
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:12.893
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 9.111
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.381
Then I find very few patterns in the guest's memory 28.979 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.647
Then patterns cover at least 99% of the test FS size in the guest's memory 31.712 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.978
Then I find very few patterns in the guest's memory after 3 seconds 31.857 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
# read cache
When I mount the USB drive again 5.164
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 26.264 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.598
Then I find very few patterns in the guest's memory after 3 seconds 19.272 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 0.816
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.226
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 8.465
And I prepare Tails for memory erasure tests 0.402
When I fill a 128 MiB file with a known pattern on the root filesystem 11.081
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.516
Then patterns cover at least 128 MiB in the guest's memory 10.779 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 22.962 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 3.650
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:24.384
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 6:49.408
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.354
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 25.157 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:331 3.796
After features/support/hooks.rb:100 0.015