Project Number Date
test_Tails_ISO_devel 4382 08 May 2026, 10:55

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 7:17.852 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
17.399
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 6.400
And I prepare Tails for memory erasure tests 0.451
When I start a process allocating 128 MiB of memory with a known pattern 1.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.948 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.570
Then I find very few patterns in the guest's memory after 5 seconds 6.835 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.834
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.299
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 6.662
And I prepare Tails for memory erasure tests 0.353
And I find very few patterns in the guest's memory 1.799 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.565
Then patterns cover at least 99% of the test FS size in the guest's memory 1.903 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.278
Then I find very few patterns in the guest's memory after 3 seconds 4.736 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.895
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.642
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.567
And I prepare Tails for memory erasure tests 0.407
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.339
Then I find very few patterns in the guest's memory 1.829 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.425
Then patterns cover at least 75% of the test FS size in the guest's memory 1.986 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.644
Then I find very few patterns in the guest's memory after 3 seconds 4.798 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.142
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 1.930 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.738 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.631
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.521
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.475
And I prepare Tails for memory erasure tests 0.292
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.699
Then I find very few patterns in the guest's memory 1.721 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.419
Then patterns cover at least 99% of the test FS size in the guest's memory 1.786 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.552
Then I find very few patterns in the guest's memory after 3 seconds 4.645 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 3.596
And I read the content of the test FS 0.332
Then patterns cover at least 99% of the test FS size in the guest's memory 1.779 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.391
Then I find very few patterns in the guest's memory after 3 seconds 4.827 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.748
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.402
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.548
And I prepare Tails for memory erasure tests 0.304
When I fill a 128 MiB file with a known pattern on the root filesystem 26.682
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.811
Then patterns cover at least 128 MiB in the guest's memory 1.474 
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 20.573 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 3.708
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:18.587
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 3:37.821
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.499
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.921 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.591
After features/support/hooks.rb:100 0.008