Project Number Date
test_Tails_ISO_devel 4403 19 May 2026, 14:37

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 8:7.346 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
18.599
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 6.737
And I prepare Tails for memory erasure tests 0.554
When I start a process allocating 128 MiB of memory with a known pattern 1.229
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.573 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.744
Then I find very few patterns in the guest's memory after 5 seconds 6.759 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 0.625
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.957
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 6.735
And I prepare Tails for memory erasure tests 0.715
And I find very few patterns in the guest's memory 2.227 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.767
Then patterns cover at least 99% of the test FS size in the guest's memory 2.233 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.323
Then I find very few patterns in the guest's memory after 3 seconds 4.954 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:335 0.813
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
34.692
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 6.604
And I prepare Tails for memory erasure tests 0.518
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.802
Then I find very few patterns in the guest's memory 2.165 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.845
Then patterns cover at least 75% of the test FS size in the guest's memory 2.192 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.697
Then I find very few patterns in the guest's memory after 3 seconds 5.039 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.153
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 2.713 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 5.134 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 0.702
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:1.449
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 7.068
And I prepare Tails for memory erasure tests 0.478
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.345
Then I find very few patterns in the guest's memory 1.960 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.444
Then patterns cover at least 99% of the test FS size in the guest's memory 2.112 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.490
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 4.878
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 2.344 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory after 3 seconds 4.799 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:335 0.981
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.016
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.740
And I prepare Tails for memory erasure tests 0.437
When I fill a 128 MiB file with a known pattern on the root filesystem 24.525
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.019
Then patterns cover at least 128 MiB in the guest's memory 1.681 
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 20.604 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 3.598
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:57.630
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:18.023
And I prepare Tails for memory erasure tests 0.328
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.056
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 21.201 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:335 3.723
After features/support/hooks.rb:104 0.025