Project Number Date
test_Tails_ISO_stable 6262 04 Apr 2026, 11:07

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 7:24.635 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
18.668
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 7.005
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 2.221
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.069 
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 6.776 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:331 0.625
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.481
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 7.406
And I prepare Tails for memory erasure tests 0.435
And I find very few patterns in the guest's memory 1.825 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.578
Then patterns cover at least 99% of the test FS size in the guest's memory 2.001 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.335
Then I find very few patterns in the guest's memory after 3 seconds 4.897 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 0.777
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.976
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 7.228
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.621
Then I find very few patterns in the guest's memory 1.756 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.223
Then patterns cover at least 75% of the test FS size in the guest's memory 2.060 
Pattern coverage: 100.000% (127 MiB out of 127 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 5.142 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
# read cache
When I mount the USB drive again 0.226
And I read the content of the test FS 0.554
Then patterns cover at least 99% of the test FS size in the guest's memory 2.485 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 4.892 
Pattern coverage: 0.000% (0 MiB out of 1528 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
58.998
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 6.808
And I prepare Tails for memory erasure tests 0.490
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.100
Then I find very few patterns in the guest's memory 1.896 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.165
Then patterns cover at least 99% of the test FS size in the guest's memory 1.903 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory after 3 seconds 4.855 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# read cache
When I mount the USB drive again 4.465
And I read the content of the test FS 0.303
Then patterns cover at least 99% of the test FS size in the guest's memory 2.174 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.563
Then I find very few patterns in the guest's memory after 3 seconds 4.654 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:331 0.796
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.959
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 6.678
And I prepare Tails for memory erasure tests 0.465
When I fill a 128 MiB file with a known pattern on the root filesystem 12.480
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.058
Then patterns cover at least 128 MiB in the guest's memory 1.678 
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 20.589 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:331 3.887
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:30.552
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:57.943
And I prepare Tails for memory erasure tests 0.327
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.316
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.958 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.742
After features/support/hooks.rb:100 0.009