Project Number Date
test_Tails_ISO_devel 4341 14 Apr 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 7:31.115 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
18.258
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 6.695
And I prepare Tails for memory erasure tests 0.403
When I start a process allocating 128 MiB of memory with a known pattern 1.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.302 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.689
Then I find very few patterns in the guest's memory after 5 seconds 6.983 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.097
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.903
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 6.713
And I prepare Tails for memory erasure tests 0.376
And I find very few patterns in the guest's memory 1.726 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.394
Then patterns cover at least 99% of the test FS size in the guest's memory 2.241 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.319
Then I find very few patterns in the guest's memory after 3 seconds 5.130 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.842
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.013
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 6.899
And I prepare Tails for memory erasure tests 0.373
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.354
Then I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.583
Then patterns cover at least 75% of the test FS size in the guest's memory 2.267 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.737
Then I find very few patterns in the guest's memory after 3 seconds 5.028 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.170
And I read the content of the test FS 0.482
Then patterns cover at least 99% of the test FS size in the guest's memory 2.005 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.342
Then I find very few patterns in the guest's memory after 3 seconds 4.970 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.748
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.470
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 6.988
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.973
Then I find very few patterns in the guest's memory 1.806 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.236
Then patterns cover at least 99% of the test FS size in the guest's memory 2.259 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.562
Then I find very few patterns in the guest's memory after 3 seconds 4.959 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 3.821
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 1.849 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.774 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.887
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.222
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 6.863
And I prepare Tails for memory erasure tests 0.477
When I fill a 128 MiB file with a known pattern on the root filesystem 12.537
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.061
Then patterns cover at least 128 MiB in the guest's memory 1.701 
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 20.574 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.863
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:37.247
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 4:4.643
And I prepare Tails for memory erasure tests 0.324
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.060
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.211 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 3.607
After features/support/hooks.rb:100 0.012