Project Number Date
test_Tails_ISO_21651-persist-gnome-software-dconf-state 7 26 Jul 2026, 03:53

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 7:49.112 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
19.321
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 6.739
And I prepare Tails for memory erasure tests 0.366
When I start a process allocating 128 MiB of memory with a known pattern 2.296
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.914 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.917
Then I find very few patterns in the guest's memory after 5 seconds 7.085 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.951
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.191
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 7.016
And I prepare Tails for memory erasure tests 0.334
And I find very few patterns in the guest's memory 1.915 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.633
Then patterns cover at least 99% of the test FS size in the guest's memory 2.013 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.386
Then I find very few patterns in the guest's memory after 3 seconds 4.891 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 1.107
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.692
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.976
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.200
Then I find very few patterns in the guest's memory 1.788 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.619
Then patterns cover at least 75% of the test FS size in the guest's memory 2.226 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.706
Then I find very few patterns in the guest's memory after 3 seconds 5.154 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 0.132
And I read the content of the test FS 0.478
Then patterns cover at least 99% of the test FS size in the guest's memory 1.947 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.686 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 1.140
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.998
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.795
And I prepare Tails for memory erasure tests 0.334
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.387
Then I find very few patterns in the guest's memory 1.599 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.185
Then patterns cover at least 99% of the test FS size in the guest's memory 1.786 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 4.664 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
# read cache
When I mount the USB drive again 4.268
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 2.003 
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 4.706 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 0.856
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.889
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.949
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 33.505
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.863
Then patterns cover at least 128 MiB in the guest's memory 1.625 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.535 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.862
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.019
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 3:48.282
And I prepare Tails for memory erasure tests 0.287
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.536
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.907 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 3.895
After features/support/hooks.rb:108 0.013