Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 23 26 Aug 2026, 23:00

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 7:35.310 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
19.370
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 6.138
And I prepare Tails for memory erasure tests 0.317
When I start a process allocating 128 MiB of memory with a known pattern 2.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.823 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.220
Then I find very few patterns in the guest's memory after 5 seconds 7.645 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 0.898
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.494
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 6.148
And I prepare Tails for memory erasure tests 0.263
And I find very few patterns in the guest's memory 2.982 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.508
Then patterns cover at least 99% of the test FS size in the guest's memory 3.169 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.369
Then I find very few patterns in the guest's memory after 3 seconds 6.052 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.686
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
50.625
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 6.158
And I prepare Tails for memory erasure tests 0.311
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.183
Then I find very few patterns in the guest's memory 5.676 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.381
Then patterns cover at least 75% of the test FS size in the guest's memory 6.435 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.618
Then I find very few patterns in the guest's memory after 3 seconds 8.664 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.182
And I read the content of the test FS 0.527
Then patterns cover at least 99% of the test FS size in the guest's memory 6.182 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 7.891 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 0.563
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.629
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 6.318
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.807
Then I find very few patterns in the guest's memory 3.179 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.246
Then patterns cover at least 99% of the test FS size in the guest's memory 2.732 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 5.594 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 3.906
And I read the content of the test FS 0.318
Then patterns cover at least 99% of the test FS size in the guest's memory 2.664 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 5.650 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.556
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.656
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 6.241
And I prepare Tails for memory erasure tests 0.356
When I fill a 128 MiB file with a known pattern on the root filesystem 13.920
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.329
Then patterns cover at least 128 MiB in the guest's memory 2.095 
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 20.704 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 3.343
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:19.533
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 3:48.260
And I prepare Tails for memory erasure tests 0.265
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.030
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.964 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.608
After features/support/hooks.rb:108 0.009