Project Number Date
test_Tails_ISO_devel 4217 07 Feb 2026, 11:52

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 7:31.218 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
18.857
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.798
And I prepare Tails for memory erasure tests 0.399
When I start a process allocating 128 MiB of memory with a known pattern 2.231
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.303 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 6.911 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.923
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.466
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.800
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 2.113 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.351
Then patterns cover at least 99% of the test FS size in the guest's memory 2.189 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.851
Then I find very few patterns in the guest's memory after 3 seconds 4.741 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.770
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.210
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.021
Given I have started Tails from DVD without network and logged in 6.569
And I prepare Tails for memory erasure tests 0.547
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.417
Then I find very few patterns in the guest's memory 1.882 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.808
Then patterns cover at least 75% of the test FS size in the guest's memory 2.017 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.023
Then I find very few patterns in the guest's memory after 3 seconds 4.726 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.148
And I read the content of the test FS 0.558
Then patterns cover at least 99% of the test FS size in the guest's memory 2.211 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.257
Then I find very few patterns in the guest's memory after 3 seconds 5.042 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 1.120
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.675
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.827
And I prepare Tails for memory erasure tests 0.426
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.075
Then I find very few patterns in the guest's memory 1.883 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.156
Then patterns cover at least 99% of the test FS size in the guest's memory 1.948 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.533
Then I find very few patterns in the guest's memory after 3 seconds 4.817 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 4.409
And I read the content of the test FS 0.330
Then patterns cover at least 99% of the test FS size in the guest's memory 2.090 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.459
Then I find very few patterns in the guest's memory after 3 seconds 4.716 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.725
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.062
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.699
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the root filesystem 14.210
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.688
Then patterns cover at least 128 MiB in the guest's memory 1.545 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.532 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 3.527
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.945
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:0.516
And I prepare Tails for memory erasure tests 0.585
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.933
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.902 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.851
After features/support/hooks.rb:100 0.011