Project Number Date
test_Tails_ISO_stable 5969 26 Nov 2025, 09:02

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 14:18.836 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
51.501
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 8.574
And I prepare Tails for memory erasure tests 0.408
When I start a process allocating 128 MiB of memory with a known pattern 2.316
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 20.952 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.219
Then I find very few patterns in the guest's memory after 5 seconds 19.030 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.857
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.269
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 8.655
And I prepare Tails for memory erasure tests 0.399
And I find very few patterns in the guest's memory 14.544 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.902
Then patterns cover at least 99% of the test FS size in the guest's memory 15.042 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.609
Then I find very few patterns in the guest's memory after 3 seconds 17.116 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.124
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.298
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 8.510
And I prepare Tails for memory erasure tests 0.383
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.846
Then I find very few patterns in the guest's memory 14.416 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.647
Then patterns cover at least 75% of the test FS size in the guest's memory 16.014 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.970
Then I find very few patterns in the guest's memory after 3 seconds 17.458 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.729
Then patterns cover at least 99% of the test FS size in the guest's memory 15.478 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory after 3 seconds 17.981 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.479
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:41.503
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails from DVD without network and logged in 8.983
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.735
Then I find very few patterns in the guest's memory 13.362 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.702
Then patterns cover at least 99% of the test FS size in the guest's memory 22.611 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.623
Then I find very few patterns in the guest's memory after 3 seconds 32.025 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# read cache
When I mount the USB drive again 4.351
And I read the content of the test FS 0.445
Then patterns cover at least 99% of the test FS size in the guest's memory 31.473 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.620
Then I find very few patterns in the guest's memory after 3 seconds 16.126 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 1.330
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.004
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 8.679
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the root filesystem 10.896
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.056
Then patterns cover at least 128 MiB in the guest's memory 9.867 
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 30.076 
Pattern coverage: 0.000% (0 MiB out of 1498 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
7:2.258
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 6:28.980
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.213
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.670 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.933
After features/support/hooks.rb:100 0.014