Project Number Date
test_Tails_ISO_21909-allow-disabling-busy-persistence-features 2 12 Nov 2026, 20:24

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 7:47.557 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
20.176
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 6.511
And I prepare Tails for memory erasure tests 0.294
When I start a process allocating 128 MiB of memory with a known pattern 2.249
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.134 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.207
Then I find very few patterns in the guest's memory after 5 seconds 7.779 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 1.081
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
27.614
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 6.473
And I prepare Tails for memory erasure tests 0.393
And I find very few patterns in the guest's memory 7.835 
Pattern coverage: 0.000% (0 MiB out of 1396 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 4.276 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.385
Then I find very few patterns in the guest's memory after 3 seconds 6.680 
Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)
After features/support/hooks.rb:339 0.653
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
40.681
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 6.963
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.615
Then I find very few patterns in the guest's memory 3.507 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.757
Then patterns cover at least 75% of the test FS size in the guest's memory 4.995 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.662
Then I find very few patterns in the guest's memory after 3 seconds 5.804 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.645
Then patterns cover at least 99% of the test FS size in the guest's memory 2.938 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 5.787 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
After features/support/hooks.rb:339 0.811
After features/support/hooks.rb:108 0.001
Tags: @product @slow @not_release_blocker
1:1.853
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 6.466
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.617
Then I find very few patterns in the guest's memory 2.544 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.416
Then patterns cover at least 99% of the test FS size in the guest's memory 3.123 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.513
Then I find very few patterns in the guest's memory after 3 seconds 5.856 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
# read cache
When I mount the USB drive again 3.459
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 2.757 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.905 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 0.932
After features/support/hooks.rb:108 0.003
Tags: @product @slow @not_release_blocker
45.108
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 6.437
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 12.880
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.663
Then patterns cover at least 128 MiB in the guest's memory 3.009 
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 20.775 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
After features/support/hooks.rb:339 3.444
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:32.123
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.843
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.759
When I trigger shutdown 0.003
Then I find very few patterns in the guest's memory after 20 seconds 21.218 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 3.552
After features/support/hooks.rb:108 0.012