Project Number Date
test_Tails_ISO_21651-persist-gnome-software-dconf-state 5 24 Jul 2026, 03:44

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 7:45.381 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
17.861
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 6.480
And I prepare Tails for memory erasure tests 0.311
When I start a process allocating 128 MiB of memory with a known pattern 2.191
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.907 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.201
Then I find very few patterns in the guest's memory after 5 seconds 6.769 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.972
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.085
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 6.528
And I prepare Tails for memory erasure tests 0.374
And I find very few patterns in the guest's memory 1.631 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.597
Then patterns cover at least 99% of the test FS size in the guest's memory 1.922 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.366
Then I find very few patterns in the guest's memory after 3 seconds 4.663 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.675
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.480
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 6.632
And I prepare Tails for memory erasure tests 0.356
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.004
Then I find very few patterns in the guest's memory 1.664 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.661
Then patterns cover at least 75% of the test FS size in the guest's memory 1.949 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.943
Then I find very few patterns in the guest's memory after 3 seconds 4.730 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
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 1.840 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.481
Then I find very few patterns in the guest's memory after 3 seconds 4.689 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
58.058
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 6.680
And I prepare Tails for memory erasure tests 0.357
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.467
Then I find very few patterns in the guest's memory 1.685 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.125
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.466
Then I find very few patterns in the guest's memory after 3 seconds 4.705 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
# read cache
When I mount the USB drive again 4.716
And I read the content of the test FS 0.306
Then patterns cover at least 99% of the test FS size in the guest's memory 1.700 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 4.546 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 0.703
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.153
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 6.438
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the root filesystem 33.013
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.456
Then patterns cover at least 128 MiB in the guest's memory 1.408 
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 20.466 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.426
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:37.742
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 3:48.759
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 27.685
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.897 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:339 3.506
After features/support/hooks.rb:108 0.011