Project Number Date
test_Tails_ISO_17367-per-setting-dconf-persistence 12 10 Aug 2026, 22:58

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 7:21.678 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
19.437
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 6.233
And I prepare Tails for memory erasure tests 0.310
When I start a process allocating 128 MiB of memory with a known pattern 2.146
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.848 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.244
Then I find very few patterns in the guest's memory after 5 seconds 7.653 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.765
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.126
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 6.250
And I prepare Tails for memory erasure tests 0.262
And I find very few patterns in the guest's memory 2.600 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.333
Then patterns cover at least 99% of the test FS size in the guest's memory 2.779 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.319
Then I find very few patterns in the guest's memory after 3 seconds 5.579 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.579
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.386
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 6.253
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.386
Then I find very few patterns in the guest's memory 2.655 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.549
Then patterns cover at least 75% of the test FS size in the guest's memory 3.014 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 5.702 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.522
Then patterns cover at least 99% of the test FS size in the guest's memory 2.981 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.375
Then I find very few patterns in the guest's memory after 3 seconds 5.838 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.790
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.382
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 6.192
And I prepare Tails for memory erasure tests 0.286
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.621
Then I find very few patterns in the guest's memory 2.695 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.052
Then patterns cover at least 99% of the test FS size in the guest's memory 2.678 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.621
Then I find very few patterns in the guest's memory after 3 seconds 5.589 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 3.780
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 2.617 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 5.457 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 0.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.316
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 6.155
And I prepare Tails for memory erasure tests 0.266
When I fill a 128 MiB file with a known pattern on the root filesystem 12.903
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.294
Then patterns cover at least 128 MiB in the guest's memory 2.041 
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 20.649 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 3.710
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:24.028
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 3:51.468
And I prepare Tails for memory erasure tests 0.257
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.332
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.965 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 3.632
After features/support/hooks.rb:108 0.027