Project Number Date
test_Tails_ISO_stable 6660 12 Sep 2026, 11:26

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 7:26.365 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
19.429
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 6.187
And I prepare Tails for memory erasure tests 0.276
When I start a process allocating 128 MiB of memory with a known pattern 2.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.848 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.182
Then I find very few patterns in the guest's memory after 5 seconds 7.733 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
After features/support/hooks.rb:339 0.853
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
22.269
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 6.212
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 2.750 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.341
Then patterns cover at least 99% of the test FS size in the guest's memory 3.639 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.393
Then I find very few patterns in the guest's memory after 3 seconds 7.591 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.895
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
42.781
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 6.160
And I prepare Tails for memory erasure tests 0.280
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.289
Then I find very few patterns in the guest's memory 3.881 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.534
Then patterns cover at least 75% of the test FS size in the guest's memory 5.579 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.610
Then I find very few patterns in the guest's memory after 3 seconds 6.958 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# read cache
When I mount the USB drive again 0.181
And I read the content of the test FS 0.643
Then patterns cover at least 99% of the test FS size in the guest's memory 3.712 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.409
Then I find very few patterns in the guest's memory after 3 seconds 6.539 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 0.932
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:10.886
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 17.896
And I prepare Tails for memory erasure tests 0.258
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.475
Then I find very few patterns in the guest's memory 3.015 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.212
Then patterns cover at least 99% of the test FS size in the guest's memory 2.805 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 5.692 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
# read cache
When I mount the USB drive again 3.210
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 2.612 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.401
Then I find very few patterns in the guest's memory after 3 seconds 5.454 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
After features/support/hooks.rb:339 0.820
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.995
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 6.214
And I prepare Tails for memory erasure tests 0.253
When I fill a 128 MiB file with a known pattern on the root filesystem 13.155
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.649
Then patterns cover at least 128 MiB in the guest's memory 1.994 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.719 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.534
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:7.002
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.757
And I prepare Tails for memory erasure tests 0.251
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.968
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.019 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 3.685
After features/support/hooks.rb:108 0.038