Project Number Date
test_Tails_ISO_devel 4077 17 Nov 2025, 13:11

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 21:38.432 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
46.334
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 9.054
And I prepare Tails for memory erasure tests 0.402
When I start a process allocating 128 MiB of memory with a known pattern 2.272
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.463 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.220
Then I find very few patterns in the guest's memory after 5 seconds 18.921 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 1.363
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.389
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 8.615
And I prepare Tails for memory erasure tests 0.469
And I find very few patterns in the guest's memory 13.760 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.715
Then patterns cover at least 99% of the test FS size in the guest's memory 15.486 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.435
Then I find very few patterns in the guest's memory after 3 seconds 16.905 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.041
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:0.811
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 8.796
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.950
Then I find very few patterns in the guest's memory 22.905 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.832
Then patterns cover at least 75% of the test FS size in the guest's memory 15.977 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.897
Then I find very few patterns in the guest's memory after 3 seconds 17.387 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 0.789
Then patterns cover at least 99% of the test FS size in the guest's memory 18.277 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 24.895 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 4.831
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:45.130
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 11.236
And I prepare Tails for memory erasure tests 0.511
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 1:27.745
Then I find very few patterns in the guest's memory 1:6.165 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 12.207
Then patterns cover at least 99% of the test FS size in the guest's memory 1:40.594 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 26.409
Then I find very few patterns in the guest's memory after 3 seconds 30.681 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 5.324
And I read the content of the test FS 0.925
Then patterns cover at least 99% of the test FS size in the guest's memory 22.283 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 4.471
Then I find very few patterns in the guest's memory after 3 seconds 36.574 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.750
After features/support/hooks.rb:100 0.002
Tags: @product @slow @not_release_blocker
1:15.708
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.021
Given I have started Tails from DVD without network and logged in 16.782
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 11.018
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.601
Then patterns cover at least 128 MiB in the guest's memory 10.854 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 34.037 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.837
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
9:53.057
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 9:20.630
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.469
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 23.545 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 8.628
After features/support/hooks.rb:100 0.016