Project Number Date
test_Tails_ISO_stable 6381 16 May 2026, 11:22

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 7:24.910 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
16.969
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 6.427
And I prepare Tails for memory erasure tests 0.336
When I start a process allocating 128 MiB of memory with a known pattern 1.197
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.092 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.181
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 0.767
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.398
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 6.493
And I prepare Tails for memory erasure tests 0.331
And I find very few patterns in the guest's memory 1.653 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.648
Then patterns cover at least 99% of the test FS size in the guest's memory 2.147 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.353
Then I find very few patterns in the guest's memory after 3 seconds 4.770 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:335 0.895
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.910
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 6.536
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.304
Then I find very few patterns in the guest's memory 1.818 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.710
Then patterns cover at least 75% of the test FS size in the guest's memory 2.120 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.804
Then I find very few patterns in the guest's memory after 3 seconds 4.671 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 1.942 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.354
Then I find very few patterns in the guest's memory after 3 seconds 4.715 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:335 0.979
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.393
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 6.674
And I prepare Tails for memory erasure tests 0.399
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.597
Then I find very few patterns in the guest's memory 1.770 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.364
Then patterns cover at least 99% of the test FS size in the guest's memory 1.968 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.539
Then I find very few patterns in the guest's memory after 3 seconds 4.582 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 3.475
And I read the content of the test FS 0.262
Then patterns cover at least 99% of the test FS size in the guest's memory 1.715 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 4.616 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:335 1.055
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.207
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 6.530
And I prepare Tails for memory erasure tests 0.306
When I fill a 128 MiB file with a known pattern on the root filesystem 23.513
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.935
Then patterns cover at least 128 MiB in the guest's memory 1.439 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.476 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 3.825
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:28.031
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 3:48.807
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.981
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.922 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 3.676
After features/support/hooks.rb:104 0.008