Project Number Date
test_Tails_ISO_stable 5991 08 Dec 2025, 19:43

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 14:54.673 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
53.305
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 8.375
And I prepare Tails for memory erasure tests 0.441
When I start a process allocating 128 MiB of memory with a known pattern 2.500
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 22.628 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.227
Then I find very few patterns in the guest's memory after 5 seconds 19.132 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.192
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.328
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 8.895
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 14.236 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.045
Then patterns cover at least 99% of the test FS size in the guest's memory 20.869 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.447
Then I find very few patterns in the guest's memory after 3 seconds 17.396 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.221
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:1.018
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 8.545
And I prepare Tails for memory erasure tests 0.407
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.566
Then I find very few patterns in the guest's memory 16.717 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.658
Then patterns cover at least 75% of the test FS size in the guest's memory 22.186 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.996
Then I find very few patterns in the guest's memory after 3 seconds 17.522 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.293
And I read the content of the test FS 0.905
Then patterns cover at least 99% of the test FS size in the guest's memory 14.333 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 29.376 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 2.997
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:56.415
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.049
Given I have started Tails from DVD without network and logged in 10.286
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.882
Then I find very few patterns in the guest's memory 35.075 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.868
Then patterns cover at least 99% of the test FS size in the guest's memory 14.070 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory after 3 seconds 15.565 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 4.485
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 20.717 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 3.409
Then I find very few patterns in the guest's memory after 3 seconds 29.511 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.712
After features/support/hooks.rb:100 0.011
Tags: @product @slow @not_release_blocker
1:19.539
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails from DVD without network and logged in 8.932
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 11.150
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.865
Then patterns cover at least 128 MiB in the guest's memory 21.353 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.031
Then I find very few patterns in the guest's memory after 20 seconds 34.769 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 7.817
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:40.065
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 6:0.413
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the persistent filesystem 12.390
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 26.896 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.582
After features/support/hooks.rb:100 0.014