Project Number Date
test_Tails_ISO_devel 4125 17 Dec 2025, 15:28

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 16:1.433 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
51.208
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 11.174
And I prepare Tails for memory erasure tests 0.497
When I start a process allocating 128 MiB of memory with a known pattern 2.291
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.347 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.861
Then I find very few patterns in the guest's memory after 5 seconds 21.037 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.907
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:8.189
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 9.300
And I prepare Tails for memory erasure tests 0.565
And I find very few patterns in the guest's memory 32.684 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.365
Then patterns cover at least 99% of the test FS size in the guest's memory 37.009 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.389
Then I find very few patterns in the guest's memory after 3 seconds 45.873 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.859
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:25.899
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 8.807
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.158
Then I find very few patterns in the guest's memory 32.884 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.516
Then patterns cover at least 75% of the test FS size in the guest's memory 37.578 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.962
Then I find very few patterns in the guest's memory after 3 seconds 41.912 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.609
Then patterns cover at least 99% of the test FS size in the guest's memory 34.833 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 37.439 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.217
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:16.980
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 9.518
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.121
Then I find very few patterns in the guest's memory 23.396 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.366
Then patterns cover at least 99% of the test FS size in the guest's memory 15.272 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.728
Then I find very few patterns in the guest's memory after 3 seconds 17.171 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 4.133
And I read the content of the test FS 0.551
Then patterns cover at least 99% of the test FS size in the guest's memory 13.870 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.503
Then I find very few patterns in the guest's memory after 3 seconds 16.915 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.397
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.298
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 8.924
And I prepare Tails for memory erasure tests 0.769
When I fill a 128 MiB file with a known pattern on the root filesystem 11.105
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.736
Then patterns cover at least 128 MiB in the guest's memory 12.744 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.009 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 4.042
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:19.857
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:44.928
And I prepare Tails for memory erasure tests 1.515
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.817
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.582 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.990
After features/support/hooks.rb:100 0.015