Project Number Date
test_Tails_ISO_stable 5976 29 Nov 2025, 13:32

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 13:9.998 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
44.589
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 7.908
And I prepare Tails for memory erasure tests 0.346
When I start a process allocating 128 MiB of memory with a known pattern 0.115
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.295 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.197
Then I find very few patterns in the guest's memory after 5 seconds 19.725 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.786
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.397
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 7.968
And I prepare Tails for memory erasure tests 0.475
And I find very few patterns in the guest's memory 17.372 
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 0.714
Then patterns cover at least 99% of the test FS size in the guest's memory 16.826 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.075
Then I find very few patterns in the guest's memory after 3 seconds 16.964 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 1.109
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:38.336
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 8.495
And I prepare Tails for memory erasure tests 0.463
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.969
Then I find very few patterns in the guest's memory 14.754 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.319
Then patterns cover at least 75% of the test FS size in the guest's memory 16.753 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.302
Then I find very few patterns in the guest's memory after 3 seconds 16.776 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 0.157
And I read the content of the test FS 0.444
Then patterns cover at least 99% of the test FS size in the guest's memory 14.992 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.167
Then I find very few patterns in the guest's memory after 3 seconds 16.739 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.656
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:52.319
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 7.767
And I prepare Tails for memory erasure tests 0.736
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.824
Then I find very few patterns in the guest's memory 12.697 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.594
Then patterns cover at least 99% of the test FS size in the guest's memory 13.333 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.444
Then I find very few patterns in the guest's memory after 3 seconds 15.644 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 2.132
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 14.608 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.411
Then I find very few patterns in the guest's memory after 3 seconds 16.801 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.634
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.630
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.974
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the root filesystem 9.449
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.320
Then patterns cover at least 128 MiB in the guest's memory 9.637 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 29.873 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.593
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:56.725
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 6:23.001
And I prepare Tails for memory erasure tests 0.463
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.074
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 24.175 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.594
After features/support/hooks.rb:100 0.015