Project Number Date
test_Tails_ISO_devel 4174 17 Jan 2026, 12:22

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 12:50.487 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
46.949
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 8.304
And I prepare Tails for memory erasure tests 0.487
When I start a process allocating 128 MiB of memory with a known pattern 2.275
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.756 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.432
Then I find very few patterns in the guest's memory after 5 seconds 18.693 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.120
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.386
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.013
Given I have started Tails from DVD without network and logged in 8.589
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 14.996 
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 2.907
Then patterns cover at least 99% of the test FS size in the guest's memory 14.846 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.264
Then I find very few patterns in the guest's memory after 3 seconds 17.374 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.084
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.872
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 8.770
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.470
Then I find very few patterns in the guest's memory 14.976 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.436
Then patterns cover at least 75% of the test FS size in the guest's memory 16.097 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.645
Then I find very few patterns in the guest's memory after 3 seconds 16.889 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 0.219
And I read the content of the test FS 0.728
Then patterns cover at least 99% of the test FS size in the guest's memory 16.095 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.373
Then I find very few patterns in the guest's memory after 3 seconds 17.736 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.175
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
2:0.124
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 8.521
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.134
Then I find very few patterns in the guest's memory 12.980 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.830
Then patterns cover at least 99% of the test FS size in the guest's memory 13.671 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.705
Then I find very few patterns in the guest's memory after 3 seconds 15.759 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 4.435
And I read the content of the test FS 0.434
Then patterns cover at least 99% of the test FS size in the guest's memory 13.548 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 16.046 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.924
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.401
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 8.352
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 11.779
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.344
Then patterns cover at least 128 MiB in the guest's memory 10.017 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.523 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.954
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:22.754
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 5:49.095
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.614
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.668 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.825
After features/support/hooks.rb:100 0.013