Project Number Date
test_Tails_ISO_stable 6642 07 Sep 2026, 11:30

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 7:11.161 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
19.301
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 6.084
And I prepare Tails for memory erasure tests 0.313
When I start a process allocating 128 MiB of memory with a known pattern 2.170
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.936 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.194
Then I find very few patterns in the guest's memory after 5 seconds 7.601 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.906
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.871
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.099
And I prepare Tails for memory erasure tests 0.344
And I find very few patterns in the guest's memory 2.683 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.547
Then patterns cover at least 99% of the test FS size in the guest's memory 2.950 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.411
Then I find very few patterns in the guest's memory after 3 seconds 5.834 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 0.837
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.179
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.154
And I prepare Tails for memory erasure tests 0.305
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.143
Then I find very few patterns in the guest's memory 2.665 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.744
Then patterns cover at least 75% of the test FS size in the guest's memory 3.100 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory after 3 seconds 5.678 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
# read cache
When I mount the USB drive again 0.169
And I read the content of the test FS 0.485
Then patterns cover at least 99% of the test FS size in the guest's memory 2.948 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 5.710 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 1.020
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.148
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 6.232
And I prepare Tails for memory erasure tests 0.305
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.365
Then I find very few patterns in the guest's memory 2.421 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.322
Then patterns cover at least 99% of the test FS size in the guest's memory 2.739 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.526 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 4.035
And I read the content of the test FS 0.381
Then patterns cover at least 99% of the test FS size in the guest's memory 2.658 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.379
Then I find very few patterns in the guest's memory after 3 seconds 5.316 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.598
After features/support/hooks.rb:108 0.007
Tags: @product @slow @not_release_blocker
43.481
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 6.113
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the root filesystem 12.750
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.453
Then patterns cover at least 128 MiB in the guest's memory 2.079 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.724 
Pattern coverage: 0.000% (0 MiB out of 1416 MiB reference memory)
After features/support/hooks.rb:339 3.516
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:11.179
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.185
And I prepare Tails for memory erasure tests 0.256
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.639
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.091 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
After features/support/hooks.rb:339 3.493
After features/support/hooks.rb:108 0.008