Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 44 01 Jul 2026, 20:08

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 7:57.981 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
17.368
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 6.826
And I prepare Tails for memory erasure tests 0.315
When I start a process allocating 128 MiB of memory with a known pattern 1.169
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.137 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 6.729 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.975
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.847
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 6.754
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 1.748 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.597
Then patterns cover at least 99% of the test FS size in the guest's memory 2.273 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.311
Then I find very few patterns in the guest's memory after 3 seconds 4.756 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 0.966
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.964
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 6.790
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.442
Then I find very few patterns in the guest's memory 1.931 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.329
Then patterns cover at least 75% of the test FS size in the guest's memory 2.043 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.676
Then I find very few patterns in the guest's memory after 3 seconds 4.786 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.245
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 2.435 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.349
Then I find very few patterns in the guest's memory after 3 seconds 4.960 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.888
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.553
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 6.753
And I prepare Tails for memory erasure tests 0.498
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.433
Then I find very few patterns in the guest's memory 1.840 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.280
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.513
Then I find very few patterns in the guest's memory after 3 seconds 4.591 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.561
And I read the content of the test FS 0.292
Then patterns cover at least 99% of the test FS size in the guest's memory 2.520 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 4.960 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.828
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.206
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 6.617
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the root filesystem 31.967
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.059
Then patterns cover at least 128 MiB in the guest's memory 1.596 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.557 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 3.384
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:48.041
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.266
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.373
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.999 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.766
After features/support/hooks.rb:108 0.014