Project Number Date
test_Tails_ISO_devel 4483 06 Jul 2026, 11:29

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 8:2.088 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
17.980
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 6.581
And I prepare Tails for memory erasure tests 0.427
When I start a process allocating 128 MiB of memory with a known pattern 1.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.465 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.285
Then I find very few patterns in the guest's memory after 5 seconds 6.999 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 1.005
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.828
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 6.744
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 1.895 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.624
Then patterns cover at least 99% of the test FS size in the guest's memory 1.988 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.325
Then I find very few patterns in the guest's memory after 3 seconds 4.843 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 1.007
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.816
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 6.565
And I prepare Tails for memory erasure tests 0.492
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.465
Then I find very few patterns in the guest's memory 1.835 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.527
Then patterns cover at least 75% of the test FS size in the guest's memory 2.253 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.774
Then I find very few patterns in the guest's memory after 3 seconds 4.764 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 0.174
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 2.130 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.340
Then I find very few patterns in the guest's memory after 3 seconds 5.065 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:339 1.206
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.647
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 6.675
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.432
Then I find very few patterns in the guest's memory 1.934 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.210
Then patterns cover at least 99% of the test FS size in the guest's memory 1.822 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.500
Then I find very few patterns in the guest's memory after 3 seconds 4.721 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 3.568
And I read the content of the test FS 0.284
Then patterns cover at least 99% of the test FS size in the guest's memory 1.812 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.376
Then I find very few patterns in the guest's memory after 3 seconds 4.931 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:339 0.698
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.460
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 6.782
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the root filesystem 30.095
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.129
Then patterns cover at least 128 MiB in the guest's memory 1.552 
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 20.546 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:339 3.685
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:53.353
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.508
And I prepare Tails for memory erasure tests 0.326
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.288
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.223 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 3.415
After features/support/hooks.rb:108 0.027