Project Number Date
test_Tails_ISO_devel 4427 02 Jun 2026, 11:09

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 7:16.188 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
18.217
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 6.596
And I prepare Tails for memory erasure tests 0.375
When I start a process allocating 128 MiB of memory with a known pattern 2.301
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.033 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.169
Then I find very few patterns in the guest's memory after 5 seconds 6.741 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 0.991
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.370
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 6.628
And I prepare Tails for memory erasure tests 0.356
And I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.546
Then patterns cover at least 99% of the test FS size in the guest's memory 2.006 
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 4.765 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 0.860
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.041
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 6.519
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.481
Then I find very few patterns in the guest's memory 1.843 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.525
Then patterns cover at least 75% of the test FS size in the guest's memory 2.090 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.716
Then I find very few patterns in the guest's memory after 3 seconds 4.806 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.155
And I read the content of the test FS 0.458
Then patterns cover at least 99% of the test FS size in the guest's memory 1.941 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.351
Then I find very few patterns in the guest's memory after 3 seconds 4.817 
Pattern coverage: 0.000% (0 MiB out of 1480 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
55.348
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 6.521
And I prepare Tails for memory erasure tests 0.325
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.040
Then I find very few patterns in the guest's memory 1.661 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.291
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 0.560
Then I find very few patterns in the guest's memory after 3 seconds 4.730 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 3.854
And I read the content of the test FS 0.296
Then patterns cover at least 99% of the test FS size in the guest's memory 1.896 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.420
Then I find very few patterns in the guest's memory after 3 seconds 4.918 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:335 0.965
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.120
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 6.550
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the root filesystem 21.593
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.738
Then patterns cover at least 128 MiB in the guest's memory 1.435 
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 20.476 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 3.458
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:21.089
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 3:44.565
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the persistent filesystem 15.242
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.893 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:335 3.612
After features/support/hooks.rb:104 0.010