Project Number Date
test_Tails_ISO_stable 6524 22 Jul 2026, 13:05

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 8:6.506 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
18.888
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.852
And I prepare Tails for memory erasure tests 0.355
When I start a process allocating 128 MiB of memory with a known pattern 2.236
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.987 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.265
Then I find very few patterns in the guest's memory after 5 seconds 7.189 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 1.186
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.777
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 7.288
And I prepare Tails for memory erasure tests 0.345
And I find very few patterns in the guest's memory 1.677 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.707
Then patterns cover at least 99% of the test FS size in the guest's memory 2.075 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.467
Then I find very few patterns in the guest's memory after 3 seconds 5.214 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 1.055
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.886
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.935
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.263
Then I find very few patterns in the guest's memory 1.963 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.932
Then patterns cover at least 75% of the test FS size in the guest's memory 2.466 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.883
Then I find very few patterns in the guest's memory after 3 seconds 5.040 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.521
Then patterns cover at least 99% of the test FS size in the guest's memory 2.015 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 4.718 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.950
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.823
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.652
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.670
Then I find very few patterns in the guest's memory 1.733 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.240
Then patterns cover at least 99% of the test FS size in the guest's memory 2.019 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.548
Then I find very few patterns in the guest's memory after 3 seconds 4.986 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 5.122
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.770 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 4.965 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 1.332
After features/support/hooks.rb:108 0.006
Tags: @product @slow @not_release_blocker
1:4.039
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 7.223
And I prepare Tails for memory erasure tests 0.482
When I fill a 128 MiB file with a known pattern on the root filesystem 32.425
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.764
Then patterns cover at least 128 MiB in the guest's memory 1.561 
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 20.575 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 3.631
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:50.090
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:1.969
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.791
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.921 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:339 3.706
After features/support/hooks.rb:108 0.028