Project Number Date
test_Tails_ISO_stable 6127 08 Feb 2026, 12:55

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 15:0.992 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
53.222
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 8.287
And I prepare Tails for memory erasure tests 0.381
When I start a process allocating 128 MiB of memory with a known pattern 2.246
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 21.368 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.341
Then I find very few patterns in the guest's memory after 5 seconds 19.598 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.787
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.380
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 8.373
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 19.472 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.666
Then patterns cover at least 99% of the test FS size in the guest's memory 15.622 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.132
Then I find very few patterns in the guest's memory after 3 seconds 19.710 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 12.987
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:27.114
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 11.962
And I prepare Tails for memory erasure tests 1.535
When I plug and mount a 128 MiB USB drive with a vfat filesystem 13.275
Then I find very few patterns in the guest's memory 33.156 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.377
Then patterns cover at least 75% of the test FS size in the guest's memory 35.444 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.509
Then I find very few patterns in the guest's memory after 3 seconds 34.364 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.665
Then patterns cover at least 99% of the test FS size in the guest's memory 40.437 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.274
Then I find very few patterns in the guest's memory after 3 seconds 30.928 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 1.197
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:4.917
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 8.342
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" 31.591
Then I find very few patterns in the guest's memory 12.778 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.923
Then patterns cover at least 99% of the test FS size in the guest's memory 13.797 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.640
Then I find very few patterns in the guest's memory after 3 seconds 15.734 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 4.685
And I read the content of the test FS 0.708
Then patterns cover at least 99% of the test FS size in the guest's memory 18.021 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 15.760 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.112
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.610
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 8.131
And I prepare Tails for memory erasure tests 0.553
When I fill a 128 MiB file with a known pattern on the root filesystem 12.421
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.044
Then patterns cover at least 128 MiB in the guest's memory 12.613 
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 22.836 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 3.583
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:29.746
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 5:56.518
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.130
When I trigger shutdown 0.043
Then I find very few patterns in the guest's memory after 20 seconds 23.663 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.905
After features/support/hooks.rb:100 0.015