Project Number Date
test_Tails_ISO_devel 4576 29 Aug 2026, 10:58

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 7:13.443 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
19.518
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 6.192
And I prepare Tails for memory erasure tests 0.384
When I start a process allocating 128 MiB of memory with a known pattern 2.159
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.827 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.198
Then I find very few patterns in the guest's memory after 5 seconds 7.756 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.631
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.540
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 6.205
And I prepare Tails for memory erasure tests 0.324
And I find very few patterns in the guest's memory 2.695 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.459
Then patterns cover at least 99% of the test FS size in the guest's memory 2.796 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.356
Then I find very few patterns in the guest's memory after 3 seconds 5.703 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.626
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
47.990
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.027
Given I have started Tails from DVD without network and logged in 17.815
And I prepare Tails for memory erasure tests 0.267
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.289
Then I find very few patterns in the guest's memory 2.664 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.650
Then patterns cover at least 75% of the test FS size in the guest's memory 3.049 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.650
Then I find very few patterns in the guest's memory after 3 seconds 5.560 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 3.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.516
Then I find very few patterns in the guest's memory after 3 seconds 5.607 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.795
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.081
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 6.131
And I prepare Tails for memory erasure tests 0.326
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.574
Then I find very few patterns in the guest's memory 2.562 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.153
Then patterns cover at least 99% of the test FS size in the guest's memory 2.602 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.541 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 4.145
And I read the content of the test FS 0.299
Then patterns cover at least 99% of the test FS size in the guest's memory 2.596 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 5.348 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 0.636
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.549
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 6.201
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 12.759
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.454
Then patterns cover at least 128 MiB in the guest's memory 2.111 
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 20.680 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 3.446
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:2.762
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 3:30.555
And I prepare Tails for memory erasure tests 0.256
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.711
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.234 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 3.371
After features/support/hooks.rb:108 0.065