Project Number Date
test_Tails_ISO_devel 4086 25 Nov 2025, 02:09

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 19:20.520 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
1:20.476
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 8.524
And I prepare Tails for memory erasure tests 0.435
When I start a process allocating 128 MiB of memory with a known pattern 1.212
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 33.517 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.150
Then I find very few patterns in the guest's memory after 5 seconds 36.635 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.926
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:56.105
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 9.286
And I prepare Tails for memory erasure tests 0.328
And I find very few patterns in the guest's memory 31.005 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.534
Then patterns cover at least 99% of the test FS size in the guest's memory 41.791 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.074
Then I find very few patterns in the guest's memory after 3 seconds 33.084 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.725
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:8.596
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.741
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.347
Then I find very few patterns in the guest's memory 39.742 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.960
Then patterns cover at least 75% of the test FS size in the guest's memory 44.256 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.251
Then I find very few patterns in the guest's memory after 3 seconds 43.201 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.589
Then patterns cover at least 99% of the test FS size in the guest's memory 51.716 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.177
Then I find very few patterns in the guest's memory after 3 seconds 51.931 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:1.987
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 10.701
And I prepare Tails for memory erasure tests 0.348
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.968
Then I find very few patterns in the guest's memory 38.362 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.924
Then patterns cover at least 99% of the test FS size in the guest's memory 40.247 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 47.746 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.031
And I read the content of the test FS 0.503
Then patterns cover at least 99% of the test FS size in the guest's memory 30.038 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.298
Then I find very few patterns in the guest's memory after 3 seconds 35.427 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.463
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.729
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 7.787
And I prepare Tails for memory erasure tests 0.717
When I fill a 128 MiB file with a known pattern on the root filesystem 9.312
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.372
Then patterns cover at least 128 MiB in the guest's memory 12.453 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 23.069 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 3.499
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:59.624
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:26.074
And I prepare Tails for memory erasure tests 0.459
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.523
When I trigger shutdown 0.030
Then I find very few patterns in the guest's memory after 20 seconds 23.536 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.775
After features/support/hooks.rb:100 0.017