Project Number Date
test_Tails_ISO_devel 4451 16 Jun 2026, 14:07

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 8:4.212 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
18.019
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.899
And I prepare Tails for memory erasure tests 0.484
When I start a process allocating 128 MiB of memory with a known pattern 1.163
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.196 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.222
Then I find very few patterns in the guest's memory after 5 seconds 7.052 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:339 0.995
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.966
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 7.257
And I prepare Tails for memory erasure tests 0.450
And I find very few patterns in the guest's memory 2.112 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.791
Then patterns cover at least 99% of the test FS size in the guest's memory 2.012 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.362
Then I find very few patterns in the guest's memory after 3 seconds 4.978 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.974
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.958
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 7.429
And I prepare Tails for memory erasure tests 0.451
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.436
Then I find very few patterns in the guest's memory 1.733 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.749
Then patterns cover at least 75% of the test FS size in the guest's memory 2.246 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.729
Then I find very few patterns in the guest's memory after 3 seconds 4.922 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.552
Then patterns cover at least 99% of the test FS size in the guest's memory 2.289 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.464
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 0.874
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.997
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.789
And I prepare Tails for memory erasure tests 0.576
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.468
Then I find very few patterns in the guest's memory 1.761 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.385
Then patterns cover at least 99% of the test FS size in the guest's memory 2.065 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 5.204 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 4.764
And I read the content of the test FS 0.346
Then patterns cover at least 99% of the test FS size in the guest's memory 2.009 
Pattern coverage: 106.115% (97 MiB out of 91 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 4.681 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.775
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.921
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.976
And I prepare Tails for memory erasure tests 0.496
When I fill a 128 MiB file with a known pattern on the root filesystem 27.150
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.189
Then patterns cover at least 128 MiB in the guest's memory 1.585 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.516 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:339 3.660
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:54.348
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:15.062
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.963
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.997 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:339 3.441
After features/support/hooks.rb:108 0.011