Project Number Date
test_Tails_ISO_stable 5997 10 Dec 2025, 11:48

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 13:58.903 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
47.503
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 9.383
And I prepare Tails for memory erasure tests 0.420
When I start a process allocating 128 MiB of memory with a known pattern 2.345
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.636 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.264
Then I find very few patterns in the guest's memory after 5 seconds 19.452 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.213
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.399
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 8.878
And I prepare Tails for memory erasure tests 0.416
And I find very few patterns in the guest's memory 14.585 
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 1.862
Then patterns cover at least 99% of the test FS size in the guest's memory 15.533 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.414
Then I find very few patterns in the guest's memory after 3 seconds 17.707 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.223
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:42.481
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 8.971
And I prepare Tails for memory erasure tests 0.513
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.884
Then I find very few patterns in the guest's memory 22.642 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.074
Then patterns cover at least 75% of the test FS size in the guest's memory 25.969 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.034
Then I find very few patterns in the guest's memory after 3 seconds 17.992 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.226
And I read the content of the test FS 0.716
Then patterns cover at least 99% of the test FS size in the guest's memory 35.282 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 37.652 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.774
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:14.289
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 8.278
And I prepare Tails for memory erasure tests 0.400
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.489
Then I find very few patterns in the guest's memory 17.330 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.882
Then patterns cover at least 99% of the test FS size in the guest's memory 17.076 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.803
Then I find very few patterns in the guest's memory after 3 seconds 17.641 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 4.716
And I read the content of the test FS 0.604
Then patterns cover at least 99% of the test FS size in the guest's memory 13.757 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.641
Then I find very few patterns in the guest's memory after 3 seconds 18.666 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.965
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.112
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 8.667
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 11.623
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.524
Then patterns cover at least 128 MiB in the guest's memory 10.360 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.537 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 3.691
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:18.117
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:44.034
And I prepare Tails for memory erasure tests 0.393
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.844
When I trigger shutdown 0.075
Then I find very few patterns in the guest's memory after 20 seconds 23.769 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 4.059
After features/support/hooks.rb:100 0.015