Project Number Date
test_Tails_ISO_stable 6413 01 Jun 2026, 11:23

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 7:16.597 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
17.601
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.445
And I prepare Tails for memory erasure tests 0.442
When I start a process allocating 128 MiB of memory with a known pattern 1.216
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.940 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.682
Then I find very few patterns in the guest's memory after 5 seconds 6.874 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.645
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.438
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.499
And I prepare Tails for memory erasure tests 0.398
And I find very few patterns in the guest's memory 1.740 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.595
Then patterns cover at least 99% of the test FS size in the guest's memory 2.131 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.294
Then I find very few patterns in the guest's memory after 3 seconds 4.778 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:335 0.825
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.387
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.481
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.225
Then I find very few patterns in the guest's memory 1.814 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.543
Then patterns cover at least 75% of the test FS size in the guest's memory 1.933 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.690
Then I find very few patterns in the guest's memory after 3 seconds 4.716 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.388
Then patterns cover at least 99% of the test FS size in the guest's memory 1.894 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.346
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:335 0.833
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.800
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.711
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.355
Then I find very few patterns in the guest's memory 1.798 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.438
Then patterns cover at least 99% of the test FS size in the guest's memory 1.770 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 4.633 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 4.004
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 1.803 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory after 3 seconds 4.595 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:335 0.973
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.368
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.557
And I prepare Tails for memory erasure tests 0.359
When I fill a 128 MiB file with a known pattern on the root filesystem 24.516
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.960
Then patterns cover at least 128 MiB in the guest's memory 1.497 
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 20.470 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 3.728
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:19.000
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:40.516
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.349
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.809 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:335 3.731
After features/support/hooks.rb:104 0.008