Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 33 20 Jun 2026, 20:09

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 7:52.201 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
17.731
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.879
And I prepare Tails for memory erasure tests 0.368
When I start a process allocating 128 MiB of memory with a known pattern 1.246
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.831 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.760
Then I find very few patterns in the guest's memory after 5 seconds 6.644 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:339 1.186
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.074
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.804
And I prepare Tails for memory erasure tests 0.310
And I find very few patterns in the guest's memory 1.678 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.516
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.296
Then I find very few patterns in the guest's memory after 3 seconds 4.629 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:339 0.645
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.932
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 7.019
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.265
Then I find very few patterns in the guest's memory 1.730 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.663
Then patterns cover at least 75% of the test FS size in the guest's memory 1.897 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 4.619 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
# read cache
When I mount the USB drive again 0.149
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 2.090 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:339 0.799
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.656
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 6.900
And I prepare Tails for memory erasure tests 0.309
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 1.612 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.393
Then patterns cover at least 99% of the test FS size in the guest's memory 1.673 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.539
Then I find very few patterns in the guest's memory after 3 seconds 4.482 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
# read cache
When I mount the USB drive again 3.581
And I read the content of the test FS 0.276
Then patterns cover at least 99% of the test FS size in the guest's memory 1.684 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.404
Then I find very few patterns in the guest's memory after 3 seconds 4.574 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:339 0.703
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.286
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.724
And I prepare Tails for memory erasure tests 0.322
When I fill a 128 MiB file with a known pattern on the root filesystem 28.181
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.976
Then patterns cover at least 128 MiB in the guest's memory 1.512 
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 20.563 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:339 3.876
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:50.519
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:11.871
And I prepare Tails for memory erasure tests 0.291
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.484
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.866 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.785
After features/support/hooks.rb:108 0.069