Project Number Date
test_Tails_ISO_stable 6548 30 Jul 2026, 11:40

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 7:45.211 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
17.744
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.485
And I prepare Tails for memory erasure tests 0.323
When I start a process allocating 128 MiB of memory with a known pattern 2.210
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.893 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 6.657 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 0.979
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.670
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.451
And I prepare Tails for memory erasure tests 0.385
And I find very few patterns in the guest's memory 1.578 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.016
Then patterns cover at least 99% of the test FS size in the guest's memory 1.980 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.790 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 1.101
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.962
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.527
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.279
Then I find very few patterns in the guest's memory 1.699 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.869
Then patterns cover at least 75% of the test FS size in the guest's memory 2.070 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.846
Then I find very few patterns in the guest's memory after 3 seconds 4.644 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.397
Then patterns cover at least 99% of the test FS size in the guest's memory 1.907 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.401
Then I find very few patterns in the guest's memory after 3 seconds 4.771 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.079
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.632
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.400
Then I find very few patterns in the guest's memory 1.682 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.362
Then patterns cover at least 99% of the test FS size in the guest's memory 1.789 
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 4.607 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 4.424
And I read the content of the test FS 0.304
Then patterns cover at least 99% of the test FS size in the guest's memory 1.797 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.693 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.741
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.060
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.518
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 33.483
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.643
Then patterns cover at least 128 MiB in the guest's memory 1.528 
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 20.537 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 3.528
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:36.694
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:49.600
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.832
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.924 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.494
After features/support/hooks.rb:108 0.012