Project Number Date
test_Tails_ISO_stable 5996 10 Dec 2025, 07:37

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 13:49.670 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
44.667
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 7.950
And I prepare Tails for memory erasure tests 0.827
When I start a process allocating 128 MiB of memory with a known pattern 1.259
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.012 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.211
Then I find very few patterns in the guest's memory after 5 seconds 19.405 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.722
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.412
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 9.093
And I prepare Tails for memory erasure tests 0.420
And I find very few patterns in the guest's memory 15.765 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.602
Then patterns cover at least 99% of the test FS size in the guest's memory 15.684 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.077
Then I find very few patterns in the guest's memory after 3 seconds 17.770 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.123
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:45.403
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.532
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.724
Then I find very few patterns in the guest's memory 16.861 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.089
Then patterns cover at least 75% of the test FS size in the guest's memory 18.210 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.218
Then I find very few patterns in the guest's memory after 3 seconds 17.917 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.705
Then patterns cover at least 99% of the test FS size in the guest's memory 15.467 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.192
Then I find very few patterns in the guest's memory after 3 seconds 18.855 
Pattern coverage: 0.000% (0 MiB out of 1491 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
3:1.000
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 7.818
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.220
Then I find very few patterns in the guest's memory 13.068 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.649
Then patterns cover at least 99% of the test FS size in the guest's memory 25.092 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 35.472 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 2.468
And I read the content of the test FS 0.345
Then patterns cover at least 99% of the test FS size in the guest's memory 28.741 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.371
Then I find very few patterns in the guest's memory after 3 seconds 31.902 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.389
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.067
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 8.102
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the root filesystem 9.933
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.360
Then patterns cover at least 128 MiB in the guest's memory 21.396 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.044
Then I find very few patterns in the guest's memory after 20 seconds 25.820 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.628
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:13.119
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:39.705
And I prepare Tails for memory erasure tests 0.373
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.698
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.330 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.812
After features/support/hooks.rb:100 0.018