Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 41 28 Jun 2026, 20:03

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 7:46.173 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
18.718
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.586
And I prepare Tails for memory erasure tests 0.303
When I start a process allocating 128 MiB of memory with a known pattern 2.227
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.977 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.680
Then I find very few patterns in the guest's memory after 5 seconds 6.942 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 1.060
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.431
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.692
And I prepare Tails for memory erasure tests 0.332
And I find very few patterns in the guest's memory 1.764 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.558
Then patterns cover at least 99% of the test FS size in the guest's memory 1.937 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.335
Then I find very few patterns in the guest's memory after 3 seconds 4.809 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:339 0.893
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.939
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 6.639
And I prepare Tails for memory erasure tests 0.331
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.177
Then I find very few patterns in the guest's memory 1.759 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.643
Then patterns cover at least 75% of the test FS size in the guest's memory 2.073 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.754
Then I find very few patterns in the guest's memory after 3 seconds 4.900 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.455
Then patterns cover at least 99% of the test FS size in the guest's memory 1.905 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 4.715 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 1.061
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.185
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.574
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.744
Then I find very few patterns in the guest's memory 1.793 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.328
Then patterns cover at least 99% of the test FS size in the guest's memory 1.909 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.523
Then I find very few patterns in the guest's memory after 3 seconds 4.865 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 3.717
And I read the content of the test FS 0.399
Then patterns cover at least 99% of the test FS size in the guest's memory 1.916 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.607 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.840
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.491
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.543
And I prepare Tails for memory erasure tests 0.445
When I fill a 128 MiB file with a known pattern on the root filesystem 30.256
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.186
Then patterns cover at least 128 MiB in the guest's memory 1.540 
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 20.513 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 3.615
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:39.407
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.099
And I prepare Tails for memory erasure tests 0.341
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.829
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.130 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 3.859
After features/support/hooks.rb:108 0.014