Project Number Date
test_Tails_ISO_stable 5926 03 Nov 2025, 08:33

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 11:36.753 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
37.654
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.378
And I prepare Tails for memory erasure tests 0.663
When I start a process allocating 128 MiB of memory with a known pattern 2.323
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 10.461 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.893
Then I find very few patterns in the guest's memory after 5 seconds 14.935 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 0.778
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.793
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.417
And I prepare Tails for memory erasure tests 0.428
And I find very few patterns in the guest's memory 9.716 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.989
Then patterns cover at least 99% of the test FS size in the guest's memory 11.048 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.538
Then I find very few patterns in the guest's memory after 3 seconds 12.652 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.102
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:19.477
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.655
And I prepare Tails for memory erasure tests 0.488
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.702
Then I find very few patterns in the guest's memory 10.342 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.795
Then patterns cover at least 75% of the test FS size in the guest's memory 11.250 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.037
Then I find very few patterns in the guest's memory after 3 seconds 12.802 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.778
Then patterns cover at least 99% of the test FS size in the guest's memory 10.916 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.550
Then I find very few patterns in the guest's memory after 3 seconds 12.932 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.933
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.506
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.820
And I prepare Tails for memory erasure tests 0.419
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.654
Then I find very few patterns in the guest's memory 8.749 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.663
Then patterns cover at least 99% of the test FS size in the guest's memory 9.554 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.749
Then I find very few patterns in the guest's memory after 3 seconds 12.121 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# read cache
When I mount the USB drive again 4.238
And I read the content of the test FS 0.444
Then patterns cover at least 99% of the test FS size in the guest's memory 9.628 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.574
Then I find very few patterns in the guest's memory after 3 seconds 11.887 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.861
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.574
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.102
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the root filesystem 10.100
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.924
Then patterns cover at least 128 MiB in the guest's memory 6.952 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.074 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.658
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:21.747
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:49.688
And I prepare Tails for memory erasure tests 0.488
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.608
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.949 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:331 3.825
After features/support/hooks.rb:100 0.013