Project Number Date
test_Tails_ISO_stable 6687 22 Sep 2026, 11:37

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 7:42.845 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
19.939
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 6.134
And I prepare Tails for memory erasure tests 0.298
When I start a process allocating 128 MiB of memory with a known pattern 2.262
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.313 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.222
Then I find very few patterns in the guest's memory after 5 seconds 7.709 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.859
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.963
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 6.132
And I prepare Tails for memory erasure tests 0.299
And I find very few patterns in the guest's memory 3.049 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.446
Then patterns cover at least 99% of the test FS size in the guest's memory 3.133 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.326
Then I find very few patterns in the guest's memory after 3 seconds 5.576 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.756
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
48.760
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 18.015
And I prepare Tails for memory erasure tests 0.306
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.112
Then I find very few patterns in the guest's memory 2.624 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.625
Then patterns cover at least 75% of the test FS size in the guest's memory 3.137 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.618
Then I find very few patterns in the guest's memory after 3 seconds 5.639 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.590
Then patterns cover at least 99% of the test FS size in the guest's memory 2.879 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.547
Then I find very few patterns in the guest's memory after 3 seconds 6.501 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.979
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.881
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.353
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.917
Then I find very few patterns in the guest's memory 3.365 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.178
Then patterns cover at least 99% of the test FS size in the guest's memory 2.887 
Pattern coverage: 106.115% (97 MiB out of 91 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 5.646 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# read cache
When I mount the USB drive again 3.641
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 2.690 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.392
Then I find very few patterns in the guest's memory after 3 seconds 5.532 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.833
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.400
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 6.337
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the root filesystem 13.340
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.474
Then patterns cover at least 128 MiB in the guest's memory 2.100 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.815 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 3.616
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:27.899
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.552
And I prepare Tails for memory erasure tests 0.259
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.729
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.352 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 3.787
After features/support/hooks.rb:108 0.019