Project Number Date
test_Tails_ISO_stable 6446 15 Jun 2026, 14:42

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 8:6.030 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
18.432
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.029
Given I have started Tails from DVD without network and logged in 7.224
And I prepare Tails for memory erasure tests 0.402
When I start a process allocating 128 MiB of memory with a known pattern 1.172
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.480 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.197
Then I find very few patterns in the guest's memory after 5 seconds 6.955 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 0.942
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.259
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails from DVD without network and logged in 7.577
And I prepare Tails for memory erasure tests 0.374
And I find very few patterns in the guest's memory 1.804 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.853
Then patterns cover at least 99% of the test FS size in the guest's memory 2.188 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.083 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 1.043
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.492
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.333
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.699
Then I find very few patterns in the guest's memory 1.936 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.818
Then patterns cover at least 75% of the test FS size in the guest's memory 2.381 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.729
Then I find very few patterns in the guest's memory after 3 seconds 4.716 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.448
Then patterns cover at least 99% of the test FS size in the guest's memory 2.145 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.392
Then I find very few patterns in the guest's memory after 3 seconds 5.369 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.806
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.382
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.046
Given I have started Tails from DVD without network and logged in 7.458
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.579
Then I find very few patterns in the guest's memory 2.023 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.418
Then patterns cover at least 99% of the test FS size in the guest's memory 1.994 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.528
Then I find very few patterns in the guest's memory after 3 seconds 4.758 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 3.637
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 1.979 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.392
Then I find very few patterns in the guest's memory after 3 seconds 4.943 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 1.021
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.091
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.030
Given I have started Tails from DVD without network and logged in 7.575
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 24.704
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.983
Then patterns cover at least 128 MiB in the guest's memory 1.774 
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 20.655 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 3.512
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:58.373
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:18.046
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.798
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.155 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:339 3.443
After features/support/hooks.rb:108 0.094