Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 13 04 Jun 2026, 20:03

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 7:40.571 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
19.179
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.648
And I prepare Tails for memory erasure tests 0.375
When I start a process allocating 128 MiB of memory with a known pattern 2.308
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.584 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.225
Then I find very few patterns in the guest's memory after 5 seconds 7.034 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 0.656
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.378
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 6.516
And I prepare Tails for memory erasure tests 0.349
And I find very few patterns in the guest's memory 1.816 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.901
Then patterns cover at least 99% of the test FS size in the guest's memory 2.336 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.373
Then I find very few patterns in the guest's memory after 3 seconds 5.082 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:335 0.875
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.733
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 6.516
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.309
Then I find very few patterns in the guest's memory 1.960 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.714
Then patterns cover at least 75% of the test FS size in the guest's memory 2.207 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.803
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.450
Then patterns cover at least 99% of the test FS size in the guest's memory 2.032 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory after 3 seconds 4.982 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:335 1.165
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
53.169
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 6.723
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.706
Then I find very few patterns in the guest's memory 1.794 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.395
Then patterns cover at least 99% of the test FS size in the guest's memory 2.310 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.619
Then I find very few patterns in the guest's memory after 3 seconds 4.755 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 3.333
And I read the content of the test FS 0.300
Then patterns cover at least 99% of the test FS size in the guest's memory 1.812 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.374
Then I find very few patterns in the guest's memory after 3 seconds 4.708 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:335 0.602
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.233
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 7.002
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the root filesystem 23.999
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.774
Then patterns cover at least 128 MiB in the guest's memory 1.530 
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 20.493 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:335 3.818
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:40.877
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:2.257
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.230
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.988 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:335 3.467
After features/support/hooks.rb:104 0.026