Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 17 08 Jun 2026, 18:07

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 7:34.744 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
17.915
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.763
And I prepare Tails for memory erasure tests 0.361
When I start a process allocating 128 MiB of memory with a known pattern 1.160
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.867 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.666
Then I find very few patterns in the guest's memory after 5 seconds 7.095 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
After features/support/hooks.rb:335 0.958
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.631
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.849
And I prepare Tails for memory erasure tests 0.387
And I find very few patterns in the guest's memory 1.687 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.573
Then patterns cover at least 99% of the test FS size in the guest's memory 1.933 
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 4.880 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:335 0.732
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.735
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.017
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.248
Then I find very few patterns in the guest's memory 1.771 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.574
Then patterns cover at least 75% of the test FS size in the guest's memory 2.412 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory after 3 seconds 4.859 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.425
Then patterns cover at least 99% of the test FS size in the guest's memory 1.963 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.369
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
After features/support/hooks.rb:335 1.034
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.679
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.102
And I prepare Tails for memory erasure tests 0.398
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.716
Then I find very few patterns in the guest's memory 1.653 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.270
Then patterns cover at least 99% of the test FS size in the guest's memory 1.874 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 4.895 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# read cache
When I mount the USB drive again 4.107
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 1.843 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 4.549 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:335 0.620
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.099
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.698
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 24.563
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.143
Then patterns cover at least 128 MiB in the guest's memory 1.542 
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 20.754 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:335 3.516
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:31.682
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.864
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.469
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.973 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
After features/support/hooks.rb:335 3.619
After features/support/hooks.rb:104 0.012