Project Number Date
test_Tails_ISO_devel 4131 19 Dec 2025, 11:50

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 6:45.673 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
16.591
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 6.488
And I prepare Tails for memory erasure tests 0.309
When I start a process allocating 128 MiB of memory with a known pattern 1.143
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.828 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.164
Then I find very few patterns in the guest's memory after 5 seconds 6.657 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 0.595
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.824
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 6.489
And I prepare Tails for memory erasure tests 0.309
And I find very few patterns in the guest's memory 1.616 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.431
Then patterns cover at least 99% of the test FS size in the guest's memory 1.784 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.343
Then I find very few patterns in the guest's memory after 3 seconds 4.850 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:331 0.892
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.334
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 6.498
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.001
Then I find very few patterns in the guest's memory 1.651 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.024
Then patterns cover at least 75% of the test FS size in the guest's memory 1.904 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.660
Then I find very few patterns in the guest's memory after 3 seconds 4.648 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.389
Then patterns cover at least 99% of the test FS size in the guest's memory 1.961 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.347
Then I find very few patterns in the guest's memory after 3 seconds 4.738 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.908
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.028
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 6.365
And I prepare Tails for memory erasure tests 0.282
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.830
Then I find very few patterns in the guest's memory 1.633 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.036
Then patterns cover at least 99% of the test FS size in the guest's memory 1.727 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.487
Then I find very few patterns in the guest's memory after 3 seconds 4.537 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 3.976
And I read the content of the test FS 0.285
Then patterns cover at least 99% of the test FS size in the guest's memory 1.804 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.664 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.745
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.385
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 6.451
And I prepare Tails for memory erasure tests 0.309
When I fill a 128 MiB file with a known pattern on the root filesystem 11.996
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.700
Then patterns cover at least 128 MiB in the guest's memory 1.438 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.481 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 3.656
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:3.508
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:32.138
And I prepare Tails for memory erasure tests 0.317
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.213
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.833 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.732
After features/support/hooks.rb:100 0.009