Project Number Date
test_Tails_ISO_devel 4438 09 Jun 2026, 07:58

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 7:37.904 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
17.868
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.746
And I prepare Tails for memory erasure tests 0.502
When I start a process allocating 128 MiB of memory with a known pattern 1.193
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.936 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.181
Then I find very few patterns in the guest's memory after 5 seconds 7.307 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 0.976
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.610
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.619
And I prepare Tails for memory erasure tests 0.436
And I find very few patterns in the guest's memory 1.808 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.663
Then patterns cover at least 99% of the test FS size in the guest's memory 2.028 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.341
Then I find very few patterns in the guest's memory after 3 seconds 4.712 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 0.562
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.443
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.931
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.418
Then I find very few patterns in the guest's memory 1.745 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.898
Then patterns cover at least 75% of the test FS size in the guest's memory 2.119 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.900
Then I find very few patterns in the guest's memory after 3 seconds 4.979 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.525
Then patterns cover at least 99% of the test FS size in the guest's memory 2.223 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.706 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 0.957
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.671
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.801
And I prepare Tails for memory erasure tests 0.501
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.385
Then I find very few patterns in the guest's memory 1.790 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.379
Then patterns cover at least 99% of the test FS size in the guest's memory 1.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.563
Then I find very few patterns in the guest's memory after 3 seconds 5.148 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 3.935
And I read the content of the test FS 0.337
Then patterns cover at least 99% of the test FS size in the guest's memory 1.881 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 4.603 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:335 0.656
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.184
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.468
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 26.002
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.052
Then patterns cover at least 128 MiB in the guest's memory 1.635 
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 20.580 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:335 3.403
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:34.125
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.914
And I prepare Tails for memory erasure tests 0.468
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.692
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.045 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 3.677
After features/support/hooks.rb:104 0.010