Project Number Date
test_Tails_ISO_stable 6056 13 Jan 2026, 13:17

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 6:54.485 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
18.773
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 6.453
And I prepare Tails for memory erasure tests 0.402
When I start a process allocating 128 MiB of memory with a known pattern 2.259
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.882 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.880
Then I find very few patterns in the guest's memory after 5 seconds 6.894 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:331 0.962
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.091
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 6.590
And I prepare Tails for memory erasure tests 0.372
And I find very few patterns in the guest's memory 1.740 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.015
Then patterns cover at least 99% of the test FS size in the guest's memory 1.847 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.781
Then I find very few patterns in the guest's memory after 3 seconds 4.742 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:331 0.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.347
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 6.561
And I prepare Tails for memory erasure tests 0.316
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.242
Then I find very few patterns in the guest's memory 1.831 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.416
Then patterns cover at least 75% of the test FS size in the guest's memory 1.968 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.985
Then I find very few patterns in the guest's memory after 3 seconds 4.600 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.455
Then patterns cover at least 99% of the test FS size in the guest's memory 1.869 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.272
Then I find very few patterns in the guest's memory after 3 seconds 4.676 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:331 0.910
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.347
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 6.495
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.452
Then I find very few patterns in the guest's memory 1.659 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.041
Then patterns cover at least 99% of the test FS size in the guest's memory 1.694 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory after 3 seconds 4.712 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 4.147
And I read the content of the test FS 0.290
Then patterns cover at least 99% of the test FS size in the guest's memory 1.919 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 4.540 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 1.016
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.471
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 6.466
And I prepare Tails for memory erasure tests 0.312
When I fill a 128 MiB file with a known pattern on the root filesystem 13.199
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.649
Then patterns cover at least 128 MiB in the guest's memory 1.375 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.462 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 3.632
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:6.453
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 3:34.901
And I prepare Tails for memory erasure tests 0.298
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.262
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.984 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.817
After features/support/hooks.rb:100 0.008