Project Number Date
test_Tails_ISO_devel 4185 23 Jan 2026, 08:49

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 7:32.689 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
19.885
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 7.042
And I prepare Tails for memory erasure tests 0.371
When I start a process allocating 128 MiB of memory with a known pattern 2.273
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.318 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.954
Then I find very few patterns in the guest's memory after 5 seconds 6.925 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.954
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.382
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 6.939
And I prepare Tails for memory erasure tests 0.356
And I find very few patterns in the guest's memory 2.068 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.142
Then patterns cover at least 99% of the test FS size in the guest's memory 2.070 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.854
Then I find very few patterns in the guest's memory after 3 seconds 4.951 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 0.993
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.441
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 7.015
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.381
Then I find very few patterns in the guest's memory 1.895 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.960
Then patterns cover at least 75% of the test FS size in the guest's memory 2.244 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.257
Then I find very few patterns in the guest's memory after 3 seconds 5.310 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 0.179
And I read the content of the test FS 0.471
Then patterns cover at least 99% of the test FS size in the guest's memory 2.144 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.299
Then I find very few patterns in the guest's memory after 3 seconds 4.881 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.877
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.350
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 6.948
And I prepare Tails for memory erasure tests 0.394
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.921
Then I find very few patterns in the guest's memory 1.963 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.175
Then patterns cover at least 99% of the test FS size in the guest's memory 1.834 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 4.830 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 4.083
And I read the content of the test FS 0.343
Then patterns cover at least 99% of the test FS size in the guest's memory 1.955 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 4.898 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.065
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.094
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 6.751
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 14.206
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.577
Then patterns cover at least 128 MiB in the guest's memory 1.560 
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 20.591 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.526
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:40.534
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:8.826
And I prepare Tails for memory erasure tests 0.475
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.317
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.908 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 3.867
After features/support/hooks.rb:100 0.014