Project Number Date
test_Tails_ISO_stable 6019 22 Dec 2025, 11:57

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 14:48.523 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
47.626
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 8.619
And I prepare Tails for memory erasure tests 0.383
When I start a process allocating 128 MiB of memory with a known pattern 2.268
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.779 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.324
Then I find very few patterns in the guest's memory after 5 seconds 20.249 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.916
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.569
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 8.474
And I prepare Tails for memory erasure tests 0.365
And I find very few patterns in the guest's memory 14.526 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.721
Then patterns cover at least 99% of the test FS size in the guest's memory 15.772 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.392
Then I find very few patterns in the guest's memory after 3 seconds 17.317 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.991
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:57.504
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 8.583
And I prepare Tails for memory erasure tests 0.460
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.281
Then I find very few patterns in the guest's memory 14.608 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.467
Then patterns cover at least 75% of the test FS size in the guest's memory 20.797 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.013
Then I find very few patterns in the guest's memory after 3 seconds 18.372 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.262
And I read the content of the test FS 1.350
Then patterns cover at least 99% of the test FS size in the guest's memory 15.008 
Pattern coverage: 100.000% (127 MiB out of 127 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 25.804 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.842
After features/support/hooks.rb:100 0.003
Tags: @product @slow @not_release_blocker
3:30.557
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 8.541
And I prepare Tails for memory erasure tests 0.531
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.153
Then I find very few patterns in the guest's memory 30.634 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 11.187
Then patterns cover at least 99% of the test FS size in the guest's memory 35.851 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 5.602
Then I find very few patterns in the guest's memory after 3 seconds 37.937 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
# read cache
When I mount the USB drive again 7.014
And I read the content of the test FS 1.556
Then patterns cover at least 99% of the test FS size in the guest's memory 14.689 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 20.255 
Pattern coverage: 0.000% (0 MiB out of 1449 MiB reference memory)
After features/support/hooks.rb:331 1.561
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.281
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 8.571
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 10.741
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.066
Then patterns cover at least 128 MiB in the guest's memory 11.681 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.825 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 4.201
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:36.984
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:3.348
And I prepare Tails for memory erasure tests 0.462
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.289
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.873 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 8.467
After features/support/hooks.rb:100 0.061