Project Number Date
test_Tails_ISO_devel 4424 01 Jun 2026, 11:04

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 7:27.676 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
16.806
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.442
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 1.171
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.946 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.167
Then I find very few patterns in the guest's memory after 5 seconds 6.728 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.965
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
16.748
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 6.486
And I prepare Tails for memory erasure tests 0.389
And I find very few patterns in the guest's memory 1.581 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.500
Then patterns cover at least 99% of the test FS size in the guest's memory 1.865 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.285
Then I find very few patterns in the guest's memory after 3 seconds 4.641 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:335 1.080
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.076
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 6.400
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.039
Then I find very few patterns in the guest's memory 1.631 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.711
Then patterns cover at least 75% of the test FS size in the guest's memory 1.852 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.750
Then I find very few patterns in the guest's memory after 3 seconds 4.688 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
# read cache
When I mount the USB drive again 0.149
And I read the content of the test FS 0.414
Then patterns cover at least 99% of the test FS size in the guest's memory 2.039 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.632 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:335 0.661
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
55.632
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.398
And I prepare Tails for memory erasure tests 0.459
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.921
Then I find very few patterns in the guest's memory 1.608 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.386
Then patterns cover at least 99% of the test FS size in the guest's memory 1.689 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory after 3 seconds 4.507 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 4.104
And I read the content of the test FS 0.291
Then patterns cover at least 99% of the test FS size in the guest's memory 1.732 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 4.510 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:335 0.673
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
51.230
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 6.508
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 20.276
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.982
Then patterns cover at least 128 MiB in the guest's memory 1.525 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.539 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 3.864
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:36.182
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 3:54.607
And I prepare Tails for memory erasure tests 0.284
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.253
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.025 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:335 3.587
After features/support/hooks.rb:104 0.008