Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 40 27 Jun 2026, 19:58

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 7:38.734 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
17.892
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.490
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 2.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.899 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.187
Then I find very few patterns in the guest's memory after 5 seconds 6.669 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:339 0.867
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.199
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 6.612
And I prepare Tails for memory erasure tests 0.391
And I find very few patterns in the guest's memory 1.685 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.540
Then patterns cover at least 99% of the test FS size in the guest's memory 1.904 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.310
Then I find very few patterns in the guest's memory after 3 seconds 4.755 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:339 1.034
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.421
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 6.551
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.049
Then I find very few patterns in the guest's memory 1.686 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.526
Then patterns cover at least 75% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory after 3 seconds 4.869 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.500
Then patterns cover at least 99% of the test FS size in the guest's memory 1.887 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.368
Then I find very few patterns in the guest's memory after 3 seconds 4.758 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:339 1.030
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
55.289
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 6.492
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.706
Then I find very few patterns in the guest's memory 1.694 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.325
Then patterns cover at least 99% of the test FS size in the guest's memory 1.866 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.486
Then I find very few patterns in the guest's memory after 3 seconds 4.520 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# read cache
When I mount the USB drive again 3.740
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 1.753 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.460
Then I find very few patterns in the guest's memory after 3 seconds 4.588 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:339 1.054
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.088
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 6.601
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the root filesystem 33.951
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.163
Then patterns cover at least 128 MiB in the guest's memory 1.485 
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 20.490 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:339 3.481
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.843
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.770
And I prepare Tails for memory erasure tests 0.470
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.709
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.887 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:339 3.435
After features/support/hooks.rb:108 0.027