Project Number Date
test_Tails_ISO_devel 4346 15 Apr 2026, 11:05

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 7:9.551 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
17.676
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 6.637
And I prepare Tails for memory erasure tests 0.418
When I start a process allocating 128 MiB of memory with a known pattern 1.174
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.018 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.639
Then I find very few patterns in the guest's memory after 5 seconds 6.787 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 0.572
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.137
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.552
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 1.701 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.454
Then patterns cover at least 99% of the test FS size in the guest's memory 1.891 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.357
Then I find very few patterns in the guest's memory after 3 seconds 4.796 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.739
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.655
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.601
And I prepare Tails for memory erasure tests 0.420
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.244
Then I find very few patterns in the guest's memory 1.766 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.147
Then patterns cover at least 75% of the test FS size in the guest's memory 2.030 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.842
Then I find very few patterns in the guest's memory after 3 seconds 4.898 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.188
And I read the content of the test FS 0.452
Then patterns cover at least 99% of the test FS size in the guest's memory 1.970 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.381
Then I find very few patterns in the guest's memory after 3 seconds 4.710 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.584
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.946
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.527
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.498
Then I find very few patterns in the guest's memory 1.782 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.166
Then patterns cover at least 99% of the test FS size in the guest's memory 1.752 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.548
Then I find very few patterns in the guest's memory after 3 seconds 4.627 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 4.217
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.843 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 4.684 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.775
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.737
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 6.581
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the root filesystem 13.068
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.714
Then patterns cover at least 128 MiB in the guest's memory 1.475 
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 20.492 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.838
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:22.398
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.044
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.954
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 21.040 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
After features/support/hooks.rb:331 3.422
After features/support/hooks.rb:100 0.036