Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 15 13 Aug 2026, 23:07

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 7:27.511 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
20.098
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 6.463
And I prepare Tails for memory erasure tests 0.293
When I start a process allocating 128 MiB of memory with a known pattern 2.186
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.890 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 8.056 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.625
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.225
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 6.481
And I prepare Tails for memory erasure tests 0.355
And I find very few patterns in the guest's memory 2.798 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.441
Then patterns cover at least 99% of the test FS size in the guest's memory 2.890 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.381
Then I find very few patterns in the guest's memory after 3 seconds 5.876 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.973
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.562
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 6.396
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.099
Then I find very few patterns in the guest's memory 2.659 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.694
Then patterns cover at least 75% of the test FS size in the guest's memory 3.149 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.673
Then I find very few patterns in the guest's memory after 3 seconds 5.880 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.565
Then patterns cover at least 99% of the test FS size in the guest's memory 2.779 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 5.677 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.653
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.917
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 6.458
And I prepare Tails for memory erasure tests 0.292
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.650
Then I find very few patterns in the guest's memory 2.861 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.152
Then patterns cover at least 99% of the test FS size in the guest's memory 2.715 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.508
Then I find very few patterns in the guest's memory after 3 seconds 5.453 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 3.678
And I read the content of the test FS 0.335
Then patterns cover at least 99% of the test FS size in the guest's memory 2.698 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 5.645 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.847
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.064
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 0.323
When I fill a 128 MiB file with a known pattern on the root filesystem 12.641
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.725
Then patterns cover at least 128 MiB in the guest's memory 2.174 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.713 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 3.679
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:22.642
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 3:52.263
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.938
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.128 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:339 3.686
After features/support/hooks.rb:108 0.030