Project Number Date
test_Tails_ISO_stable 6097 27 Jan 2026, 19:17

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 6:56.891 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
18.053
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 6.569
And I prepare Tails for memory erasure tests 0.369
When I start a process allocating 128 MiB of memory with a known pattern 2.205
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.954 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.163
Then I find very few patterns in the guest's memory after 5 seconds 6.789 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.701
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.403
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 6.592
And I prepare Tails for memory erasure tests 0.390
And I find very few patterns in the guest's memory 1.852 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.135
Then patterns cover at least 99% of the test FS size in the guest's memory 1.888 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.795
Then I find very few patterns in the guest's memory after 3 seconds 4.748 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.816
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.039
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 6.630
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.208
Then I find very few patterns in the guest's memory 1.764 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.611
Then patterns cover at least 75% of the test FS size in the guest's memory 2.031 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.091
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 0.147
And I read the content of the test FS 0.395
Then patterns cover at least 99% of the test FS size in the guest's memory 1.956 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.285
Then I find very few patterns in the guest's memory after 3 seconds 4.750 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.695
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.629
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 6.552
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.970
Then I find very few patterns in the guest's memory 1.712 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.003
Then patterns cover at least 99% of the test FS size in the guest's memory 1.811 
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 4.597 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 3.804
And I read the content of the test FS 0.261
Then patterns cover at least 99% of the test FS size in the guest's memory 2.005 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 4.637 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.704
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.040
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 6.574
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 13.530
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.600
Then patterns cover at least 128 MiB in the guest's memory 1.415 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.525 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.540
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:8.725
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 3:37.579
And I prepare Tails for memory erasure tests 0.275
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.983
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.880 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.448
After features/support/hooks.rb:100 0.028