Project Number Date
test_Tails_ISO_devel 4419 27 May 2026, 19:27

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 7:44.275 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
18.601
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.015
Given I have started Tails from DVD without network and logged in 6.829
And I prepare Tails for memory erasure tests 0.353
When I start a process allocating 128 MiB of memory with a known pattern 2.253
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.081 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.165
Then I find very few patterns in the guest's memory after 5 seconds 6.917 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.682
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.969
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.026
Given I have started Tails from DVD without network and logged in 6.756
And I prepare Tails for memory erasure tests 0.349
And I find very few patterns in the guest's memory 1.777 
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 1.566
Then patterns cover at least 99% of the test FS size in the guest's memory 2.112 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.437
Then I find very few patterns in the guest's memory after 3 seconds 4.969 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 0.807
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.545
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.005
Given I have started Tails from DVD without network and logged in 6.674
And I prepare Tails for memory erasure tests 0.362
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.265
Then I find very few patterns in the guest's memory 1.881 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.676
Then patterns cover at least 75% of the test FS size in the guest's memory 2.121 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.754
Then I find very few patterns in the guest's memory after 3 seconds 4.926 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.433
Then patterns cover at least 99% of the test FS size in the guest's memory 2.017 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.923 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.749
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.025
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 7.029
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.187
Then I find very few patterns in the guest's memory 1.768 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.344
Then patterns cover at least 99% of the test FS size in the guest's memory 2.095 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.565
Then I find very few patterns in the guest's memory after 3 seconds 4.793 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 3.480
And I read the content of the test FS 0.332
Then patterns cover at least 99% of the test FS size in the guest's memory 1.969 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.431
Then I find very few patterns in the guest's memory after 3 seconds 4.652 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 0.767
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.622
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 6.898
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the root filesystem 27.955
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.064
Then patterns cover at least 128 MiB in the guest's memory 1.680 
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 20.689 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:335 3.505
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:37.511
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 3:59.005
And I prepare Tails for memory erasure tests 0.511
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.061
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.925 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 3.749
After features/support/hooks.rb:104 0.010