Project Number Date
test_Tails_ISO_stable 6018 21 Dec 2025, 11:47

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 14:48.748 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
47.361
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 8.548
And I prepare Tails for memory erasure tests 0.393
When I start a process allocating 128 MiB of memory with a known pattern 2.305
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.125 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.252
Then I find very few patterns in the guest's memory after 5 seconds 19.735 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.142
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.319
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 8.688
And I prepare Tails for memory erasure tests 0.433
And I find very few patterns in the guest's memory 14.390 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.021
Then patterns cover at least 99% of the test FS size in the guest's memory 19.457 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.487
Then I find very few patterns in the guest's memory after 3 seconds 17.840 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.269
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:55.630
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 8.537
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.532
Then I find very few patterns in the guest's memory 15.451 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.692
Then patterns cover at least 75% of the test FS size in the guest's memory 18.200 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.053
Then I find very few patterns in the guest's memory after 3 seconds 19.594 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 0.238
And I read the content of the test FS 0.644
Then patterns cover at least 99% of the test FS size in the guest's memory 14.681 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.670
Then I find very few patterns in the guest's memory after 3 seconds 22.888 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.093
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
3:37.147
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 10.173
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.360
Then I find very few patterns in the guest's memory 37.817 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.654
Then patterns cover at least 99% of the test FS size in the guest's memory 31.636 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.813
Then I find very few patterns in the guest's memory after 3 seconds 31.971 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 4.379
And I read the content of the test FS 0.661
Then patterns cover at least 99% of the test FS size in the guest's memory 30.663 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.624
Then I find very few patterns in the guest's memory after 3 seconds 31.922 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.405
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.511
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 8.640
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the root filesystem 10.866
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.496
Then patterns cover at least 128 MiB in the guest's memory 21.160 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.067
Then I find very few patterns in the guest's memory after 20 seconds 22.859 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.799
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:18.778
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:45.804
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.120
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.415 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 3.833
After features/support/hooks.rb:100 0.015