Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 17 15 Aug 2026, 23:08

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 7:30.465 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
20.402
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 6.267
And I prepare Tails for memory erasure tests 0.388
When I start a process allocating 128 MiB of memory with a known pattern 2.194
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.869 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.743
Then I find very few patterns in the guest's memory after 5 seconds 7.938 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.870
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.768
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 6.623
And I prepare Tails for memory erasure tests 0.354
And I find very few patterns in the guest's memory 2.602 
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 1.472
Then patterns cover at least 99% of the test FS size in the guest's memory 2.793 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 5.543 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.958
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.272
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 6.665
And I prepare Tails for memory erasure tests 0.269
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.403
Then I find very few patterns in the guest's memory 2.670 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.889
Then patterns cover at least 75% of the test FS size in the guest's memory 3.596 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.823
Then I find very few patterns in the guest's memory after 3 seconds 5.737 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.654
Then patterns cover at least 99% of the test FS size in the guest's memory 3.119 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 5.823 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.971
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.416
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 6.627
And I prepare Tails for memory erasure tests 0.340
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.109
Then I find very few patterns in the guest's memory 2.877 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.348
Then patterns cover at least 99% of the test FS size in the guest's memory 2.813 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.595
Then I find very few patterns in the guest's memory after 3 seconds 5.632 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.012
And I read the content of the test FS 0.349
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.389 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 0.916
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.594
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 6.485
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the root filesystem 13.047
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.724
Then patterns cover at least 128 MiB in the guest's memory 2.326 
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 20.710 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 3.401
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:23.011
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:52.122
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.425
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.160 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.652
After features/support/hooks.rb:108 0.009