Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 7 07 Aug 2026, 23:02

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 7:42.901 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
20.476
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 6.469
And I prepare Tails for memory erasure tests 0.286
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.970 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.892
Then I find very few patterns in the guest's memory after 5 seconds 7.661 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.687
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.516
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 6.259
And I prepare Tails for memory erasure tests 0.284
And I find very few patterns in the guest's memory 2.845 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.693
Then patterns cover at least 99% of the test FS size in the guest's memory 3.190 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.488
Then I find very few patterns in the guest's memory after 3 seconds 5.755 
Pattern coverage: 0.000% (0 MiB out of 1467 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
37.166
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 6.215
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.377
Then I find very few patterns in the guest's memory 2.717 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.928
Then patterns cover at least 75% of the test FS size in the guest's memory 3.029 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory after 3 seconds 5.817 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 2.984 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 5.743 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 0.596
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.469
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 6.468
And I prepare Tails for memory erasure tests 0.274
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.696
Then I find very few patterns in the guest's memory 2.649 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.284
Then patterns cover at least 99% of the test FS size in the guest's memory 2.660 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 5.718 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 4.043
And I read the content of the test FS 0.475
Then patterns cover at least 99% of the test FS size in the guest's memory 2.780 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.511 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 0.784
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.232
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 6.281
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the root filesystem 12.407
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.407
Then patterns cover at least 128 MiB in the guest's memory 2.066 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.697 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 3.846
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.039
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 4:9.023
And I prepare Tails for memory erasure tests 0.260
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.655
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.095 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:339 3.715
After features/support/hooks.rb:108 0.012