Project Number Date
test_Tails_ISO_21153-zstd-iuks 1 22 Jul 2026, 20:52

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 7:54.041 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
18.340
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 6.699
And I prepare Tails for memory erasure tests 0.359
When I start a process allocating 128 MiB of memory with a known pattern 2.242
# 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 0.204
Then I find very few patterns in the guest's memory after 5 seconds 6.856 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.911
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 6.663
And I prepare Tails for memory erasure tests 0.324
And I find very few patterns in the guest's memory 1.680 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.570
Then patterns cover at least 99% of the test FS size in the guest's memory 2.108 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.161 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.859
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.739
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.857
And I prepare Tails for memory erasure tests 0.324
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.060
Then I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.701
Then patterns cover at least 75% of the test FS size in the guest's memory 2.845 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.774
Then I find very few patterns in the guest's memory after 3 seconds 4.792 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.400
Then patterns cover at least 99% of the test FS size in the guest's memory 2.024 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.365
Then I find very few patterns in the guest's memory after 3 seconds 4.669 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 1.076
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.564
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 6.632
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.486
Then I find very few patterns in the guest's memory 1.767 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.966 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 4.827 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 4.431
And I read the content of the test FS 0.356
Then patterns cover at least 99% of the test FS size in the guest's memory 1.816 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 4.609 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.714
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.560
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 6.635
And I prepare Tails for memory erasure tests 0.358
When I fill a 128 MiB file with a known pattern on the root filesystem 27.872
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.756
Then patterns cover at least 128 MiB in the guest's memory 1.445 
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 20.485 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.494
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:47.925
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 4:0.762
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.924
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.934 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 3.412
After features/support/hooks.rb:108 0.012