Project Number Date
test_Tails_ISO_stable 5977 30 Nov 2025, 17:59

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 15:11.639 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
45.326
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 8.636
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 2.278
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.785 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.207
Then I find very few patterns in the guest's memory after 5 seconds 19.005 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.180
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.690
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 8.997
And I prepare Tails for memory erasure tests 0.510
And I find very few patterns in the guest's memory 14.539 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.666
Then patterns cover at least 99% of the test FS size in the guest's memory 16.229 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.464
Then I find very few patterns in the guest's memory after 3 seconds 22.283 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.702
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:40.590
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 8.716
And I prepare Tails for memory erasure tests 0.453
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.643
Then I find very few patterns in the guest's memory 14.387 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.663
Then patterns cover at least 75% of the test FS size in the guest's memory 16.324 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.980
Then I find very few patterns in the guest's memory after 3 seconds 16.870 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.983
Then patterns cover at least 99% of the test FS size in the guest's memory 15.005 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 16.953 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 0.948
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:2.897
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 8.798
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.372
Then I find very few patterns in the guest's memory 15.589 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.597
Then patterns cover at least 99% of the test FS size in the guest's memory 22.052 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.787
Then I find very few patterns in the guest's memory after 3 seconds 32.105 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 4.298
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 30.972 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.790
Then I find very few patterns in the guest's memory after 3 seconds 33.664 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.064
After features/support/hooks.rb:100 0.002
Tags: @product @slow @not_release_blocker
1:14.181
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 8.765
And I prepare Tails for memory erasure tests 0.407
When I fill a 128 MiB file with a known pattern on the root filesystem 10.834
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.204
Then patterns cover at least 128 MiB in the guest's memory 25.381 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 25.572 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.716
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:23.952
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:50.266
And I prepare Tails for memory erasure tests 0.471
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.971
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 24.227 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 3.847
After features/support/hooks.rb:100 0.014