Project Number Date
test_Tails_ISO_devel 4103 06 Dec 2025, 12:49

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 14:20.049 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
47.999
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 9.349
And I prepare Tails for memory erasure tests 0.469
When I start a process allocating 128 MiB of memory with a known pattern 2.392
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.235 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.287
Then I find very few patterns in the guest's memory after 5 seconds 19.266 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.235
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.271
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.874
And I prepare Tails for memory erasure tests 0.416
And I find very few patterns in the guest's memory 14.169 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.662
Then patterns cover at least 99% of the test FS size in the guest's memory 16.488 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.455
Then I find very few patterns in the guest's memory after 3 seconds 17.205 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.843
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:48.036
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 9.549
And I prepare Tails for memory erasure tests 0.569
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.825
Then I find very few patterns in the guest's memory 13.704 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.414
Then patterns cover at least 75% of the test FS size in the guest's memory 16.373 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.044
Then I find very few patterns in the guest's memory after 3 seconds 16.983 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.261
And I read the content of the test FS 0.603
Then patterns cover at least 99% of the test FS size in the guest's memory 17.365 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.474
Then I find very few patterns in the guest's memory after 3 seconds 19.866 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.954
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:19.408
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.594
And I prepare Tails for memory erasure tests 0.547
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.655
Then I find very few patterns in the guest's memory 29.537 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.387
Then patterns cover at least 99% of the test FS size in the guest's memory 31.708 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.031
Then I find very few patterns in the guest's memory after 3 seconds 39.938 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.391
And I read the content of the test FS 0.434
Then patterns cover at least 99% of the test FS size in the guest's memory 27.412 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 16.271 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.933
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.955
And I prepare Tails for memory erasure tests 0.440
When I fill a 128 MiB file with a known pattern on the root filesystem 11.325
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.999
Then patterns cover at least 128 MiB in the guest's memory 11.360 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.841 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 4.081
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:27.399
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:51.470
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.452
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 27.083 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:331 3.496
After features/support/hooks.rb:100 0.012