Project Number Date
test_Tails_ISO_stable 6033 03 Jan 2026, 11:11

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 6:46.631 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
18.569
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 6.710
And I prepare Tails for memory erasure tests 0.356
When I start a process allocating 128 MiB of memory with a known pattern 2.223
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.884 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.686
Then I find very few patterns in the guest's memory after 5 seconds 6.707 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.616
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.702
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 6.617
And I prepare Tails for memory erasure tests 0.322
And I find very few patterns in the guest's memory 1.651 
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 1.334
Then patterns cover at least 99% of the test FS size in the guest's memory 1.794 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.314
Then I find very few patterns in the guest's memory after 3 seconds 4.667 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.036
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.884
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 6.493
And I prepare Tails for memory erasure tests 0.294
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.113
Then I find very few patterns in the guest's memory 1.768 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.958
Then patterns cover at least 75% of the test FS size in the guest's memory 1.932 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.631
Then I find very few patterns in the guest's memory after 3 seconds 4.705 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.150
And I read the content of the test FS 0.626
Then patterns cover at least 99% of the test FS size in the guest's memory 2.169 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 4.625 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.917
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.822
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 6.394
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.702
Then I find very few patterns in the guest's memory 1.639 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.076
Then patterns cover at least 99% of the test FS size in the guest's memory 1.831 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.574 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.656
And I read the content of the test FS 0.285
Then patterns cover at least 99% of the test FS size in the guest's memory 1.765 
Pattern coverage: 106.115% (97 MiB out of 91 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 1476 MiB reference memory)
After features/support/hooks.rb:331 1.017
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.633
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 6.476
And I prepare Tails for memory erasure tests 0.286
When I fill a 128 MiB file with a known pattern on the root filesystem 12.190
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.735
Then patterns cover at least 128 MiB in the guest's memory 1.422 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.023
Then I find very few patterns in the guest's memory after 20 seconds 20.499 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.462
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:3.019
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 3:31.263
And I prepare Tails for memory erasure tests 0.283
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.581
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.886 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 3.756
After features/support/hooks.rb:100 0.008