Project Number Date
test_Tails_ISO_stable 6737 12 Oct 2026, 12:05

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 7:45.970 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
20.298
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 6.337
And I prepare Tails for memory erasure tests 0.332
When I start a process allocating 128 MiB of memory with a known pattern 2.204
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.123 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.227
Then I find very few patterns in the guest's memory after 5 seconds 8.073 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.921
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.920
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 6.551
And I prepare Tails for memory erasure tests 0.468
And I find very few patterns in the guest's memory 3.436 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.480
Then patterns cover at least 99% of the test FS size in the guest's memory 2.968 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.366
Then I find very few patterns in the guest's memory after 3 seconds 5.648 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.808
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.570
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 6.325
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.512
Then I find very few patterns in the guest's memory 2.799 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.686
Then patterns cover at least 75% of the test FS size in the guest's memory 3.160 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 6.161 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# read cache
When I mount the USB drive again 0.158
And I read the content of the test FS 0.649
Then patterns cover at least 99% of the test FS size in the guest's memory 2.970 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.442
Then I find very few patterns in the guest's memory after 3 seconds 5.687 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 0.623
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.532
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 6.405
And I prepare Tails for memory erasure tests 0.378
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.946
Then I find very few patterns in the guest's memory 2.694 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.286
Then patterns cover at least 99% of the test FS size in the guest's memory 2.992 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 5.587 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 4.489
And I read the content of the test FS 0.350
Then patterns cover at least 99% of the test FS size in the guest's memory 2.655 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.799 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.690
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.649
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 6.457
And I prepare Tails for memory erasure tests 0.316
When I fill a 128 MiB file with a known pattern on the root filesystem 12.881
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.632
Then patterns cover at least 128 MiB in the guest's memory 2.442 
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 20.914 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.394
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.999
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 4:3.380
And I prepare Tails for memory erasure tests 0.322
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.964
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.326 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 3.712
After features/support/hooks.rb:108 0.014