Project Number Date
test_Tails_ISO_stable 6247 30 Mar 2026, 11:53

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 8:59.704 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
17.275
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 6.768
And I prepare Tails for memory erasure tests 0.370
When I start a process allocating 128 MiB of memory with a known pattern 1.261
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.851 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.263
Then I find very few patterns in the guest's memory after 5 seconds 6.760 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.025
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.323
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 6.743
And I prepare Tails for memory erasure tests 0.408
And I find very few patterns in the guest's memory 1.781 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.522
Then patterns cover at least 99% of the test FS size in the guest's memory 1.892 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.342
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.978
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.598
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 6.887
And I prepare Tails for memory erasure tests 0.355
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.213
Then I find very few patterns in the guest's memory 1.632 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.135
Then patterns cover at least 75% of the test FS size in the guest's memory 2.022 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.524
Then patterns cover at least 99% of the test FS size in the guest's memory 1.937 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.740
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.557
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 6.740
And I prepare Tails for memory erasure tests 0.305
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.884
Then I find very few patterns in the guest's memory 1.635 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.506
Then patterns cover at least 99% of the test FS size in the guest's memory 1.911 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.555
Then I find very few patterns in the guest's memory after 3 seconds 4.665 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 5.332
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.717 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 4.504 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.529
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 6.819
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 12.152
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 13.319
Then patterns cover at least 128 MiB in the guest's memory 1.406 
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 20.483 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.593
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:52.419
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:20.230
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.936
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.908 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 3.763
After features/support/hooks.rb:100 0.011