Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 38 25 Jun 2026, 20:02

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 7:53.292 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
17.250
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.689
And I prepare Tails for memory erasure tests 0.365
When I start a process allocating 128 MiB of memory with a known pattern 1.203
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.923 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.202
Then I find very few patterns in the guest's memory after 5 seconds 6.865 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 1.018
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.516
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 6.685
And I prepare Tails for memory erasure tests 0.347
And I find very few patterns in the guest's memory 1.754 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.512
Then patterns cover at least 99% of the test FS size in the guest's memory 2.010 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.278
Then I find very few patterns in the guest's memory after 3 seconds 4.927 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.741
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.798
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 6.617
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.083
Then I find very few patterns in the guest's memory 1.775 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.656
Then patterns cover at least 75% of the test FS size in the guest's memory 2.015 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.813
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.443
Then patterns cover at least 99% of the test FS size in the guest's memory 1.958 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.324
Then I find very few patterns in the guest's memory after 3 seconds 4.842 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.942
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.228
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 6.637
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.805
Then I find very few patterns in the guest's memory 1.632 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.283
Then patterns cover at least 99% of the test FS size in the guest's memory 1.920 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 4.015
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.830 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.447
Then I find very few patterns in the guest's memory after 3 seconds 4.576 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 1.050
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.809
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 6.908
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the root filesystem 30.419
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.002
Then patterns cover at least 128 MiB in the guest's memory 1.614 
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 1476 MiB reference memory)
After features/support/hooks.rb:339 3.835
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:47.689
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 3:59.232
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.091
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.958 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.556
After features/support/hooks.rb:108 0.014