Project Number Date
test_Tails_ISO_devel 4481 05 Jul 2026, 11:25

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 8:9.119 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
18.931
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 6.893
And I prepare Tails for memory erasure tests 0.333
When I start a process allocating 128 MiB of memory with a known pattern 1.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.180 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.600
Then I find very few patterns in the guest's memory after 5 seconds 7.724 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 1.033
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.763
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.010
Given I have started Tails from DVD without network and logged in 6.825
And I prepare Tails for memory erasure tests 0.329
And I find very few patterns in the guest's memory 1.792 
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 1.630
Then patterns cover at least 99% of the test FS size in the guest's memory 1.956 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.873 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 1.100
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.153
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 6.704
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.404
Then I find very few patterns in the guest's memory 1.865 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.891
Then patterns cover at least 75% of the test FS size in the guest's memory 2.285 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.804
Then I find very few patterns in the guest's memory after 3 seconds 5.120 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.390
Then patterns cover at least 99% of the test FS size in the guest's memory 1.897 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 4.881 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:339 0.632
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.914
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 7.023
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.488
Then I find very few patterns in the guest's memory 1.685 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.195
Then patterns cover at least 99% of the test FS size in the guest's memory 1.958 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.688
Then I find very few patterns in the guest's memory after 3 seconds 4.725 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 4.418
And I read the content of the test FS 0.365
Then patterns cover at least 99% of the test FS size in the guest's memory 1.729 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 4.844 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.927
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.789
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 7.283
And I prepare Tails for memory erasure tests 0.410
When I fill a 128 MiB file with a known pattern on the root filesystem 34.096
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.367
Then patterns cover at least 128 MiB in the guest's memory 1.741 
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 20.884 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 3.823
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:53.566
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:4.478
And I prepare Tails for memory erasure tests 0.349
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.351
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.381 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:339 3.702
After features/support/hooks.rb:108 0.010