Project Number Date
test_Tails_ISO_stable 6147 14 Feb 2026, 11:45

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 7:12.873 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
19.278
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 6.829
And I prepare Tails for memory erasure tests 0.361
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.020 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.888
Then I find very few patterns in the guest's memory after 5 seconds 6.941 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.146
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.601
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.780
And I prepare Tails for memory erasure tests 0.376
And I find very few patterns in the guest's memory 1.763 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.048
Then patterns cover at least 99% of the test FS size in the guest's memory 2.005 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.703
Then I find very few patterns in the guest's memory after 3 seconds 4.922 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.756
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.071
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.634
And I prepare Tails for memory erasure tests 0.478
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.086
Then I find very few patterns in the guest's memory 1.835 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.674
Then patterns cover at least 75% of the test FS size in the guest's memory 2.621 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.136
Then I find very few patterns in the guest's memory after 3 seconds 4.844 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.137
And I read the content of the test FS 0.417
Then patterns cover at least 99% of the test FS size in the guest's memory 2.003 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.317
Then I find very few patterns in the guest's memory after 3 seconds 4.883 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.683
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.306
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.605
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.215
Then I find very few patterns in the guest's memory 1.727 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.937
Then patterns cover at least 99% of the test FS size in the guest's memory 1.868 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 5.056 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 4.029
And I read the content of the test FS 0.273
Then patterns cover at least 99% of the test FS size in the guest's memory 1.844 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.509 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.994
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.064
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.540
And I prepare Tails for memory erasure tests 0.501
When I fill a 128 MiB file with a known pattern on the root filesystem 12.532
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.429
Then patterns cover at least 128 MiB in the guest's memory 1.520 
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 20.535 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.507
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:22.551
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.602
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.609
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.020 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 3.725
After features/support/hooks.rb:100 0.034