Project Number Date
test_Tails_ISO_devel 4349 17 Apr 2026, 11:17

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 7:27.168 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
18.745
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 6.876
And I prepare Tails for memory erasure tests 0.384
When I start a process allocating 128 MiB of memory with a known pattern 2.326
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.981 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.269
Then I find very few patterns in the guest's memory after 5 seconds 6.907 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.208
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.860
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 6.779
And I prepare Tails for memory erasure tests 0.363
And I find very few patterns in the guest's memory 1.875 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.563
Then patterns cover at least 99% of the test FS size in the guest's memory 2.029 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 4.869 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.004
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.036
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 6.794
And I prepare Tails for memory erasure tests 0.457
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.369
Then I find very few patterns in the guest's memory 1.783 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.293
Then patterns cover at least 75% of the test FS size in the guest's memory 2.152 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.225
Then I find very few patterns in the guest's memory after 3 seconds 4.922 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.463
Then patterns cover at least 99% of the test FS size in the guest's memory 2.086 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.771 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.796
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.716
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 6.601
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.470
Then I find very few patterns in the guest's memory 1.758 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.623
Then patterns cover at least 99% of the test FS size in the guest's memory 1.957 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.014
Then I find very few patterns in the guest's memory after 3 seconds 4.908 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 4.471
And I read the content of the test FS 0.353
Then patterns cover at least 99% of the test FS size in the guest's memory 1.869 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory after 3 seconds 4.794 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.300
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.329
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 6.971
And I prepare Tails for memory erasure tests 0.497
When I fill a 128 MiB file with a known pattern on the root filesystem 13.662
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 8.186
Then patterns cover at least 128 MiB in the guest's memory 1.480 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.522 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 3.800
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:20.479
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 3:47.944
And I prepare Tails for memory erasure tests 0.286
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.233
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.010 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 3.742
After features/support/hooks.rb:100 0.022