Project Number Date
test_Tails_ISO_disclose-security-issues-post-release 3 29 May 2026, 19:00

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 7:16.877 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
16.741
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.473
And I prepare Tails for memory erasure tests 0.321
When I start a process allocating 128 MiB of memory with a known pattern 1.152
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.883 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.176
Then I find very few patterns in the guest's memory after 5 seconds 6.733 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 1.038
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
16.977
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.510
And I prepare Tails for memory erasure tests 0.368
And I find very few patterns in the guest's memory 1.643 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.541
Then patterns cover at least 99% of the test FS size in the guest's memory 1.896 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.314
Then I find very few patterns in the guest's memory after 3 seconds 4.701 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:335 0.827
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.140
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.453
And I prepare Tails for memory erasure tests 0.372
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.108
Then I find very few patterns in the guest's memory 1.656 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.655
Then patterns cover at least 75% of the test FS size in the guest's memory 1.981 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory after 3 seconds 4.684 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.179
And I read the content of the test FS 0.400
Then patterns cover at least 99% of the test FS size in the guest's memory 1.902 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.402
Then I find very few patterns in the guest's memory after 3 seconds 4.619 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 0.638
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.875
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.438
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.920
Then I find very few patterns in the guest's memory 1.626 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.308
Then patterns cover at least 99% of the test FS size in the guest's memory 1.793 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 4.724 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.084
And I read the content of the test FS 0.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.802 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory after 3 seconds 4.616 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.898
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.003
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.382
And I prepare Tails for memory erasure tests 0.341
When I fill a 128 MiB file with a known pattern on the root filesystem 21.218
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.057
Then patterns cover at least 128 MiB in the guest's memory 1.494 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.500 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 3.573
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:22.139
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.905
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.947
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.917 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 3.634
After features/support/hooks.rb:104 0.009