Project Number Date
test_Tails_ISO_devel 4292 25 Mar 2026, 11:24

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 7:40.244 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
19.581
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 6.784
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 3.311
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.979 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.323
Then I find very few patterns in the guest's memory after 5 seconds 6.756 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 1.125
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.683
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 6.683
And I prepare Tails for memory erasure tests 0.438
And I find very few patterns in the guest's memory 1.865 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.624
Then patterns cover at least 99% of the test FS size in the guest's memory 1.973 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.380
Then I find very few patterns in the guest's memory after 3 seconds 4.718 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 1.218
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.283
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 6.706
And I prepare Tails for memory erasure tests 0.509
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.307
Then I find very few patterns in the guest's memory 1.708 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.270
Then patterns cover at least 75% of the test FS size in the guest's memory 2.056 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.858
Then I find very few patterns in the guest's memory after 3 seconds 4.915 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
# read cache
When I mount the USB drive again 0.193
And I read the content of the test FS 0.466
Then patterns cover at least 99% of the test FS size in the guest's memory 1.993 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.505
Then I find very few patterns in the guest's memory after 3 seconds 4.791 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 1.113
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:14.090
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 6.470
And I prepare Tails for memory erasure tests 0.561
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.606
Then I find very few patterns in the guest's memory 2.113 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.859
Then patterns cover at least 99% of the test FS size in the guest's memory 1.942 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.706
Then I find very few patterns in the guest's memory after 3 seconds 4.808 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# read cache
When I mount the USB drive again 7.645
And I read the content of the test FS 0.287
Then patterns cover at least 99% of the test FS size in the guest's memory 1.861 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 4.710 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 0.757
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.710
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 6.680
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the root filesystem 12.607
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.008
Then patterns cover at least 128 MiB in the guest's memory 1.454 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.471 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 3.851
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:31.895
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 3:58.812
And I prepare Tails for memory erasure tests 0.348
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.720
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.008 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.363
After features/support/hooks.rb:100 0.010