Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 25 11 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 7:26.818 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
17.425
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 6.673
And I prepare Tails for memory erasure tests 0.367
When I start a process allocating 128 MiB of memory with a known pattern 1.148
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.913 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.406
Then I find very few patterns in the guest's memory after 5 seconds 6.916 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
After features/support/hooks.rb:339 0.798
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.963
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.011
Given I have started Tails from DVD without network and logged in 6.671
And I prepare Tails for memory erasure tests 0.293
And I find very few patterns in the guest's memory 1.677 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.548
Then patterns cover at least 99% of the test FS size in the guest's memory 1.788 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.317
Then I find very few patterns in the guest's memory after 3 seconds 4.666 
Pattern coverage: 0.000% (0 MiB out of 1455 MiB reference memory)
After features/support/hooks.rb:339 0.739
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.220
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.777
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.119
Then I find very few patterns in the guest's memory 1.658 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.479
Then patterns cover at least 75% of the test FS size in the guest's memory 1.936 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.675
Then I find very few patterns in the guest's memory after 3 seconds 4.712 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 1.930 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.340
Then I find very few patterns in the guest's memory after 3 seconds 4.686 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 0.987
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.741
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.562
And I prepare Tails for memory erasure tests 0.316
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.159
Then I find very few patterns in the guest's memory 1.637 
Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.358
Then patterns cover at least 99% of the test FS size in the guest's memory 1.686 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 4.579 
Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)
# read cache
When I mount the USB drive again 3.837
And I read the content of the test FS 0.345
Then patterns cover at least 99% of the test FS size in the guest's memory 1.697 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 4.639 
Pattern coverage: 0.000% (0 MiB out of 1447 MiB reference memory)
After features/support/hooks.rb:339 1.030
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.713
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails from DVD without network and logged in 6.565
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 26.872
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.073
Then patterns cover at least 128 MiB in the guest's memory 1.350 
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 20.502 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.900
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:26.755
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.012
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.467
And I prepare Tails for memory erasure tests 0.374
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.073
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.833 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 3.492
After features/support/hooks.rb:108 0.030