Project Number Date
test_Tails_ISO_devel 4317 04 Apr 2026, 08:06

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 8:41.239 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
21.190
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 6.758
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 5.010
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.945 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.352
Then I find very few patterns in the guest's memory after 5 seconds 6.804 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:331 1.571
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.848
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 6.953
And I prepare Tails for memory erasure tests 0.335
And I find very few patterns in the guest's memory 1.718 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.716
Then patterns cover at least 99% of the test FS size in the guest's memory 1.960 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.411
Then I find very few patterns in the guest's memory after 3 seconds 4.753 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:331 1.069
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
37.470
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 7.184
And I prepare Tails for memory erasure tests 0.302
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.212
Then I find very few patterns in the guest's memory 1.796 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.576
Then patterns cover at least 75% of the test FS size in the guest's memory 2.131 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 5.394
Then I find very few patterns in the guest's memory after 3 seconds 4.764 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# read cache
When I mount the USB drive again 0.284
And I read the content of the test FS 0.497
Then patterns cover at least 99% of the test FS size in the guest's memory 1.899 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.672
Then I find very few patterns in the guest's memory after 3 seconds 4.752 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:331 1.269
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.355
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 6.996
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.973
Then I find very few patterns in the guest's memory 1.830 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.515
Then patterns cover at least 99% of the test FS size in the guest's memory 1.822 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory after 3 seconds 4.711 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 5.076
And I read the content of the test FS 0.340
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838 
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 4.712 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 1.135
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.855
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 6.867
And I prepare Tails for memory erasure tests 0.381
When I fill a 128 MiB file with a known pattern on the root filesystem 12.827
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.897
Then patterns cover at least 128 MiB in the guest's memory 1.413 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.461 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 3.722
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:37.517
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 5:5.362
And I prepare Tails for memory erasure tests 0.279
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.979
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.890 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 3.749
After features/support/hooks.rb:100 0.009