Project Number Date
test_Tails_ISO_stable 5943 11 Nov 2025, 15:50

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 14:29.677 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
54.201
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 9.075
And I prepare Tails for memory erasure tests 0.476
When I start a process allocating 128 MiB of memory with a known pattern 2.279
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 21.280 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.223
Then I find very few patterns in the guest's memory after 5 seconds 20.866 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.504
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 8.573
And I prepare Tails for memory erasure tests 0.430
And I find very few patterns in the guest's memory 16.840 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.959
Then patterns cover at least 99% of the test FS size in the guest's memory 17.311 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.411
Then I find very few patterns in the guest's memory after 3 seconds 16.977 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.323
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:1.494
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 9.052
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.923
Then I find very few patterns in the guest's memory 14.496 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.836
Then patterns cover at least 75% of the test FS size in the guest's memory 16.564 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.963
Then I find very few patterns in the guest's memory after 3 seconds 18.678 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 0.206
And I read the content of the test FS 0.672
Then patterns cover at least 99% of the test FS size in the guest's memory 18.911 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 30.248 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 1.087
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:20.159
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 8.953
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.657
Then I find very few patterns in the guest's memory 27.101 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.716
Then patterns cover at least 99% of the test FS size in the guest's memory 16.109 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory after 3 seconds 16.577 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 4.665
And I read the content of the test FS 0.613
Then patterns cover at least 99% of the test FS size in the guest's memory 13.715 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.872
Then I find very few patterns in the guest's memory after 3 seconds 16.026 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 0.788
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.414
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 9.124
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 11.208
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.606
Then patterns cover at least 128 MiB in the guest's memory 10.273 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.778 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.857
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:14.902
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:41.302
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.823
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.402 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 3.639
After features/support/hooks.rb:100 0.013