Project Number Date
test_Tails_ISO_stable 6034 04 Jan 2026, 12:25

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 13:51.944 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
45.459
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.479
And I prepare Tails for memory erasure tests 0.524
When I start a process allocating 128 MiB of memory with a known pattern 2.372
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.093 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.242
Then I find very few patterns in the guest's memory after 5 seconds 18.747 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.040
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.516
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 9.345
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 14.745 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.081
Then patterns cover at least 99% of the test FS size in the guest's memory 15.448 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.543
Then I find very few patterns in the guest's memory after 3 seconds 16.937 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.074
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:10.210
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 9.002
And I prepare Tails for memory erasure tests 0.417
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.558
Then I find very few patterns in the guest's memory 14.164 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.678
Then patterns cover at least 75% of the test FS size in the guest's memory 16.301 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.153
Then I find very few patterns in the guest's memory after 3 seconds 17.271 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.216
And I read the content of the test FS 0.722
Then patterns cover at least 99% of the test FS size in the guest's memory 26.390 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 34.855 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.217
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:9.922
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 8.255
And I prepare Tails for memory erasure tests 0.495
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.763
Then I find very few patterns in the guest's memory 23.041 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.810
Then patterns cover at least 99% of the test FS size in the guest's memory 13.505 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.741
Then I find very few patterns in the guest's memory after 3 seconds 15.921 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 4.394
And I read the content of the test FS 0.621
Then patterns cover at least 99% of the test FS size in the guest's memory 13.717 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.633
Then I find very few patterns in the guest's memory after 3 seconds 16.021 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 1.128
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.041
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 8.662
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 10.110
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.961
Then patterns cover at least 128 MiB in the guest's memory 10.109 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.782 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.851
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:51.793
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:18.682
And I prepare Tails for memory erasure tests 0.375
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.165
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.560 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.853
After features/support/hooks.rb:100 0.018