Project Number Date
test_Tails_ISO_stable 5989 07 Dec 2025, 19:56

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 14:7.028 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
47.756
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 8.341
And I prepare Tails for memory erasure tests 0.505
When I start a process allocating 128 MiB of memory with a known pattern 2.313
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.599 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.232
Then I find very few patterns in the guest's memory after 5 seconds 19.762 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.731
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.496
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 8.619
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 14.391 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.519
Then patterns cover at least 99% of the test FS size in the guest's memory 15.990 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.402
Then I find very few patterns in the guest's memory after 3 seconds 17.135 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.014
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:45.460
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 8.419
And I prepare Tails for memory erasure tests 0.451
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.541
Then I find very few patterns in the guest's memory 18.552 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.348
Then patterns cover at least 75% of the test FS size in the guest's memory 16.747 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.417
Then I find very few patterns in the guest's memory after 3 seconds 17.427 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.260
And I read the content of the test FS 0.865
Then patterns cover at least 99% of the test FS size in the guest's memory 15.441 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.451
Then I find very few patterns in the guest's memory after 3 seconds 16.534 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.127
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:1.099
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 8.357
And I prepare Tails for memory erasure tests 0.474
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.031
Then I find very few patterns in the guest's memory 13.599 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.921
Then patterns cover at least 99% of the test FS size in the guest's memory 23.339 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.753
Then I find very few patterns in the guest's memory after 3 seconds 33.479 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 4.399
And I read the content of the test FS 0.455
Then patterns cover at least 99% of the test FS size in the guest's memory 30.092 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.532
Then I find very few patterns in the guest's memory after 3 seconds 31.661 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.277
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.089
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 8.325
And I prepare Tails for memory erasure tests 0.484
When I fill a 128 MiB file with a known pattern on the root filesystem 11.250
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.054
Then patterns cover at least 128 MiB in the guest's memory 18.193 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.768 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.725
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:30.126
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:56.576
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.420
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 23.731 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.547
After features/support/hooks.rb:100 0.015