Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 8 03 Apr 2026, 02:18

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 7:7.807 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
17.660
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 6.598
And I prepare Tails for memory erasure tests 0.387
When I start a process allocating 128 MiB of memory with a known pattern 1.208
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.464 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 6.795 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 0.531
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.569
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 6.951
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 1.937 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.303
Then patterns cover at least 99% of the test FS size in the guest's memory 2.004 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.333
Then I find very few patterns in the guest's memory after 3 seconds 4.636 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 0.610
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.913
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 6.582
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.487
Then I find very few patterns in the guest's memory 1.751 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.197
Then patterns cover at least 75% of the test FS size in the guest's memory 1.992 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.762
Then I find very few patterns in the guest's memory after 3 seconds 4.860 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
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 2.128 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.806 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 0.890
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.568
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 6.629
And I prepare Tails for memory erasure tests 0.320
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.745
Then I find very few patterns in the guest's memory 1.638 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.097
Then patterns cover at least 99% of the test FS size in the guest's memory 1.853 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 4.575 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
# read cache
When I mount the USB drive again 3.943
And I read the content of the test FS 0.293
Then patterns cover at least 99% of the test FS size in the guest's memory 1.721 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.697 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 0.978
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.001
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.637
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the root filesystem 13.131
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.896
Then patterns cover at least 128 MiB in the guest's memory 1.462 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.570 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 3.581
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:19.093
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 3:47.559
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 10.249
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.885 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.688
After features/support/hooks.rb:100 0.008