Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 4 31 May 2026, 19:52

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 7:28.386 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
17.807
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 6.813
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 1.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.916 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.562
Then I find very few patterns in the guest's memory after 5 seconds 6.943 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:335 1.020
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.551
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 6.770
And I prepare Tails for memory erasure tests 0.462
And I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.580
Then patterns cover at least 99% of the test FS size in the guest's memory 1.900 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.312
Then I find very few patterns in the guest's memory after 3 seconds 4.771 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 0.808
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.262
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 6.808
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.243
Then I find very few patterns in the guest's memory 1.673 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.661
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 0.838
Then I find very few patterns in the guest's memory after 3 seconds 4.844 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.419
Then patterns cover at least 99% of the test FS size in the guest's memory 2.026 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.655 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:335 0.973
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.993
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 6.908
And I prepare Tails for memory erasure tests 0.512
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.483
Then I find very few patterns in the guest's memory 1.627 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.733 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 4.837 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 4.529
And I read the content of the test FS 0.293
Then patterns cover at least 99% of the test FS size in the guest's memory 1.992 
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 4.629 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 0.772
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.193
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 6.529
And I prepare Tails for memory erasure tests 0.575
When I fill a 128 MiB file with a known pattern on the root filesystem 24.741
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.183
Then patterns cover at least 128 MiB in the guest's memory 1.625 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.531 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:335 3.379
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:26.576
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 3:40.786
And I prepare Tails for memory erasure tests 0.322
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.618
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.844 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:335 3.709
After features/support/hooks.rb:104 0.010