Project Number Date
test_Tails_ISO_devel 4121 14 Dec 2025, 12:33

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 15:7.384 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
48.922
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 9.492
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 1.204
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.356 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.273
Then I find very few patterns in the guest's memory after 5 seconds 21.150 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 1.347
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.358
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.473
And I prepare Tails for memory erasure tests 0.384
And I find very few patterns in the guest's memory 14.292 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.751
Then patterns cover at least 99% of the test FS size in the guest's memory 15.321 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.605
Then I find very few patterns in the guest's memory after 3 seconds 17.530 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.426
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:55.384
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 8.656
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.654
Then I find very few patterns in the guest's memory 13.700 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.219
Then patterns cover at least 75% of the test FS size in the guest's memory 19.185 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.923
Then I find very few patterns in the guest's memory after 3 seconds 17.539 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# read cache
When I mount the USB drive again 0.276
And I read the content of the test FS 1.284
Then patterns cover at least 99% of the test FS size in the guest's memory 15.410 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 26.655 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.144
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:18.792
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 8.467
And I prepare Tails for memory erasure tests 0.380
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.863
Then I find very few patterns in the guest's memory 13.161 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.892
Then patterns cover at least 99% of the test FS size in the guest's memory 29.574 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.679
Then I find very few patterns in the guest's memory after 3 seconds 33.989 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 4.704
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 38.398 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.608
Then I find very few patterns in the guest's memory after 3 seconds 32.383 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.028
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:11.600
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 8.769
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 11.394
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.144
Then patterns cover at least 128 MiB in the guest's memory 21.885 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 26.024 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 4.059
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:54.324
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:21.782
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.542
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.620 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 3.891
After features/support/hooks.rb:100 0.015