Project Number Date
test_Tails_ISO_stable 6139 11 Feb 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 7:6.582 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
18.090
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 6.518
And I prepare Tails for memory erasure tests 0.376
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 2.041 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.178
Then I find very few patterns in the guest's memory after 5 seconds 6.733 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.799
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.093
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 6.537
And I prepare Tails for memory erasure tests 0.298
And I find very few patterns in the guest's memory 1.873 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.951
Then patterns cover at least 99% of the test FS size in the guest's memory 1.957 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.732
Then I find very few patterns in the guest's memory after 3 seconds 4.742 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.709
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.620
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 6.512
And I prepare Tails for memory erasure tests 0.384
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.109
Then I find very few patterns in the guest's memory 1.733 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.570
Then patterns cover at least 75% of the test FS size in the guest's memory 1.928 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.990
Then I find very few patterns in the guest's memory after 3 seconds 4.696 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.564
Then patterns cover at least 99% of the test FS size in the guest's memory 1.891 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.279
Then I find very few patterns in the guest's memory after 3 seconds 4.813 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.678
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.939
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 6.501
And I prepare Tails for memory erasure tests 0.316
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.925
Then I find very few patterns in the guest's memory 1.656 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.072
Then patterns cover at least 99% of the test FS size in the guest's memory 1.792 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.554
Then I find very few patterns in the guest's memory after 3 seconds 4.663 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 4.096
And I read the content of the test FS 0.287
Then patterns cover at least 99% of the test FS size in the guest's memory 2.033 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.362
Then I find very few patterns in the guest's memory after 3 seconds 4.676 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.865
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.916
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 6.559
And I prepare Tails for memory erasure tests 0.335
When I fill a 128 MiB file with a known pattern on the root filesystem 13.328
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.736
Then patterns cover at least 128 MiB in the guest's memory 1.447 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.500 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.647
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:16.922
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 3:45.879
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.780
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.858 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:331 3.781
After features/support/hooks.rb:100 0.034