Project Number Date
test_Tails_ISO_devel 4154 06 Jan 2026, 12:47

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 15:42.650 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
1:14.417
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.504
And I prepare Tails for memory erasure tests 0.433
When I start a process allocating 128 MiB of memory with a known pattern 2.272
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 26.615 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.929
Then I find very few patterns in the guest's memory after 5 seconds 35.662 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 1.101
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:22.373
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 24.323
And I prepare Tails for memory erasure tests 0.401
And I find very few patterns in the guest's memory 18.639 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.839
Then patterns cover at least 99% of the test FS size in the guest's memory 14.711 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.416
Then I find very few patterns in the guest's memory after 3 seconds 22.041 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.472
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:51.474
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.364
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.316
Then I find very few patterns in the guest's memory 26.774 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 6.415
Then patterns cover at least 75% of the test FS size in the guest's memory 56.114 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.941
Then I find very few patterns in the guest's memory after 3 seconds 19.819 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 0.764
Then patterns cover at least 99% of the test FS size in the guest's memory 14.929 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.541
Then I find very few patterns in the guest's memory after 3 seconds 24.814 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.808
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:25.861
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.447
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.729
Then I find very few patterns in the guest's memory 12.917 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.925
Then patterns cover at least 99% of the test FS size in the guest's memory 13.374 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory after 3 seconds 15.675 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 4.560
And I read the content of the test FS 0.431
Then patterns cover at least 99% of the test FS size in the guest's memory 13.712 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 28.314 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.934
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.692
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 8.934
And I prepare Tails for memory erasure tests 0.410
When I fill a 128 MiB file with a known pattern on the root filesystem 10.785
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 7.167
Then patterns cover at least 128 MiB in the guest's memory 23.455 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.925 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.923
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:34.830
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:56.006
And I prepare Tails for memory erasure tests 0.359
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.860
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 29.594 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 3.476
After features/support/hooks.rb:100 0.016