Project Number Date
test_Tails_ISO_devel 4146 02 Jan 2026, 07:51

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 6:49.623 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
17.666
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.382
And I prepare Tails for memory erasure tests 0.334
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.840 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 6.685 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 0.604
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.832
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.582
And I prepare Tails for memory erasure tests 0.309
And I find very few patterns in the guest's memory 1.644 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.298
Then I find very few patterns in the guest's memory after 3 seconds 4.730 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 0.938
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.466
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.527
And I prepare Tails for memory erasure tests 0.287
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.016
Then I find very few patterns in the guest's memory 1.674 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.979
Then patterns cover at least 75% of the test FS size in the guest's memory 2.140 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory after 3 seconds 4.675 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.381
Then patterns cover at least 99% of the test FS size in the guest's memory 1.861 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.382
Then I find very few patterns in the guest's memory after 3 seconds 4.658 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 0.773
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.079
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.515
And I prepare Tails for memory erasure tests 0.327
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.432
Then I find very few patterns in the guest's memory 1.589 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.046
Then patterns cover at least 99% of the test FS size in the guest's memory 1.789 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 4.537 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# read cache
When I mount the USB drive again 4.140
And I read the content of the test FS 0.341
Then patterns cover at least 99% of the test FS size in the guest's memory 1.825 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 4.618 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 0.724
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.615
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.454
And I prepare Tails for memory erasure tests 0.276
When I fill a 128 MiB file with a known pattern on the root filesystem 12.126
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.895
Then patterns cover at least 128 MiB in the guest's memory 1.388 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.468 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 3.413
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:5.962
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:34.141
And I prepare Tails for memory erasure tests 0.271
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.655
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.890 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.747
After features/support/hooks.rb:100 0.016