Project Number Date
test_Tails_ISO_stable 6006 13 Dec 2025, 12:56

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 14:56.504 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
46.787
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.587
And I prepare Tails for memory erasure tests 0.784
When I start a process allocating 128 MiB of memory with a known pattern 2.307
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.534 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.261
Then I find very few patterns in the guest's memory after 5 seconds 19.311 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.333
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:9.956
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 9.178
And I prepare Tails for memory erasure tests 0.536
And I find very few patterns in the guest's memory 14.850 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.055
Then patterns cover at least 99% of the test FS size in the guest's memory 17.663 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.477
Then I find very few patterns in the guest's memory after 3 seconds 25.194 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.127
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:45.036
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 8.334
And I prepare Tails for memory erasure tests 1.213
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.321
Then I find very few patterns in the guest's memory 20.383 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.820
Then patterns cover at least 75% of the test FS size in the guest's memory 36.609 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.007
Then I find very few patterns in the guest's memory after 3 seconds 43.214 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.215
And I read the content of the test FS 0.673
Then patterns cover at least 99% of the test FS size in the guest's memory 25.378 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.452
Then I find very few patterns in the guest's memory after 3 seconds 17.411 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.350
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:16.233
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 8.947
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.496
Then I find very few patterns in the guest's memory 17.342 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.681
Then patterns cover at least 99% of the test FS size in the guest's memory 14.836 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.717
Then I find very few patterns in the guest's memory after 3 seconds 20.201 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 4.597
And I read the content of the test FS 0.570
Then patterns cover at least 99% of the test FS size in the guest's memory 14.043 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.578
Then I find very few patterns in the guest's memory after 3 seconds 15.769 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.222
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.572
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 8.766
And I prepare Tails for memory erasure tests 0.474
When I fill a 128 MiB file with a known pattern on the root filesystem 11.081
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.643
Then patterns cover at least 128 MiB in the guest's memory 10.722 
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 22.873 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.670
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:1.918
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 6:28.913
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.916
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 23.625 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.909
After features/support/hooks.rb:100 0.029