Project Number Date
test_Tails_ISO_21318-tor-browser-16.0 2 04 Jun 2026, 17:10

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 7:42.348 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
18.063
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.681
And I prepare Tails for memory erasure tests 0.363
When I start a process allocating 128 MiB of memory with a known pattern 1.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.276 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.671
Then I find very few patterns in the guest's memory after 5 seconds 6.848 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.734
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.587
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.684
And I prepare Tails for memory erasure tests 0.403
And I find very few patterns in the guest's memory 1.764 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.566
Then patterns cover at least 99% of the test FS size in the guest's memory 2.000 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.317
Then I find very few patterns in the guest's memory after 3 seconds 4.850 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:335 0.634
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.863
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.633
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.173
Then I find very few patterns in the guest's memory 1.898 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.441
Then patterns cover at least 75% of the test FS size in the guest's memory 2.186 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.693
Then I find very few patterns in the guest's memory after 3 seconds 4.781 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.419
Then patterns cover at least 99% of the test FS size in the guest's memory 1.979 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.334
Then I find very few patterns in the guest's memory after 3 seconds 4.774 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:335 0.882
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.668
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 6.899
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.951
Then I find very few patterns in the guest's memory 1.735 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.400
Then patterns cover at least 99% of the test FS size in the guest's memory 1.857 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 4.748 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 3.748
And I read the content of the test FS 0.340
Then patterns cover at least 99% of the test FS size in the guest's memory 1.888 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 4.661 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:335 0.678
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.968
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.627
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the root filesystem 21.561
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.179
Then patterns cover at least 128 MiB in the guest's memory 1.613 
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 20.620 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:335 3.614
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:44.196
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 4:3.044
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.834
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.945 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:335 3.606
After features/support/hooks.rb:104 0.012