Project Number Date
test_Tails_ISO_stable 6680 17 Sep 2026, 15:55

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 7:52.705 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
21.091
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.588
And I prepare Tails for memory erasure tests 0.415
When I start a process allocating 128 MiB of memory with a known pattern 2.174
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.004 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.210
Then I find very few patterns in the guest's memory after 5 seconds 8.697 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 0.685
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.598
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 6.733
And I prepare Tails for memory erasure tests 0.359
And I find very few patterns in the guest's memory 2.813 
Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.429
Then patterns cover at least 99% of the test FS size in the guest's memory 3.097 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.334
Then I find very few patterns in the guest's memory after 3 seconds 5.830 
Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)
After features/support/hooks.rb:339 0.631
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.340
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 6.536
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.211
Then I find very few patterns in the guest's memory 3.012 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.978
Then patterns cover at least 75% of the test FS size in the guest's memory 3.232 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.826
Then I find very few patterns in the guest's memory after 3 seconds 5.692 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.597
Then patterns cover at least 99% of the test FS size in the guest's memory 2.962 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 6.353 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
After features/support/hooks.rb:339 0.880
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.622
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 7.007
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" 27.057
Then I find very few patterns in the guest's memory 4.056 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.292
Then patterns cover at least 99% of the test FS size in the guest's memory 2.854 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.500
Then I find very few patterns in the guest's memory after 3 seconds 5.466 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
# read cache
When I mount the USB drive again 3.371
And I read the content of the test FS 0.394
Then patterns cover at least 99% of the test FS size in the guest's memory 2.874 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.611
Then I find very few patterns in the guest's memory after 3 seconds 5.695 
Pattern coverage: 0.000% (0 MiB out of 1394 MiB reference memory)
After features/support/hooks.rb:339 0.898
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.545
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.427
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the root filesystem 13.059
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.454
Then patterns cover at least 128 MiB in the guest's memory 2.475 
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 20.767 
Pattern coverage: 0.000% (0 MiB out of 1396 MiB reference memory)
After features/support/hooks.rb:339 3.577
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:46.508
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:14.012
And I prepare Tails for memory erasure tests 0.385
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.940
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 22.152 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 3.869
After features/support/hooks.rb:108 0.015