Project Number Date
test_Tails_ISO_devel 4159 08 Jan 2026, 22:21

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 16:52.446 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
49.098
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 9.747
And I prepare Tails for memory erasure tests 0.542
When I start a process allocating 128 MiB of memory with a known pattern 1.516
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 17.322 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.252
Then I find very few patterns in the guest's memory after 5 seconds 19.715 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.057
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:12.669
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 8.811
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 21.665 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.260
Then patterns cover at least 99% of the test FS size in the guest's memory 35.412 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.454
Then I find very few patterns in the guest's memory after 3 seconds 1:3.649 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.456
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:43.139
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 13.637
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.982
Then I find very few patterns in the guest's memory 57.886 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.386
Then patterns cover at least 75% of the test FS size in the guest's memory 1:5.917 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.904
Then I find very few patterns in the guest's memory after 3 seconds 34.944 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.201
And I read the content of the test FS 0.845
Then patterns cover at least 99% of the test FS size in the guest's memory 17.249 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.624
Then I find very few patterns in the guest's memory after 3 seconds 19.114 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.493
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:16.717
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 8.913
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.399
Then I find very few patterns in the guest's memory 13.473 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.023
Then patterns cover at least 99% of the test FS size in the guest's memory 13.699 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.663
Then I find very few patterns in the guest's memory after 3 seconds 17.160 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 5.583
And I read the content of the test FS 1.345
Then patterns cover at least 99% of the test FS size in the guest's memory 18.409 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.341
Then I find very few patterns in the guest's memory after 3 seconds 22.245 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 1.253
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.592
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 9.151
And I prepare Tails for memory erasure tests 0.402
When I fill a 128 MiB file with a known pattern on the root filesystem 11.243
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.932
Then patterns cover at least 128 MiB in the guest's memory 14.881 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.969 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.793
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:48.230
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 6:15.419
And I prepare Tails for memory erasure tests 0.422
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.711
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.666 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 3.592
After features/support/hooks.rb:100 0.032