Project Number Date
test_Tails_ISO_stable 6298 14 Apr 2026, 19:47

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 8:3.142 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
20.728
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 7.120
And I prepare Tails for memory erasure tests 0.572
When I start a process allocating 128 MiB of memory with a known pattern 2.718
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.109 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.955
Then I find very few patterns in the guest's memory after 5 seconds 7.252 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.089
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.080
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 7.763
And I prepare Tails for memory erasure tests 0.596
And I find very few patterns in the guest's memory 1.987 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.619
Then patterns cover at least 99% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.205
Then I find very few patterns in the guest's memory after 3 seconds 4.953 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.125
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.646
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 6.945
And I prepare Tails for memory erasure tests 0.455
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.609
Then I find very few patterns in the guest's memory 1.819 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.655
Then patterns cover at least 75% of the test FS size in the guest's memory 2.245 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.958
Then I find very few patterns in the guest's memory after 3 seconds 5.194 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 0.531
And I read the content of the test FS 0.586
Then patterns cover at least 99% of the test FS size in the guest's memory 2.448 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 4.751 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.736
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:18.118
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 7.093
And I prepare Tails for memory erasure tests 0.677
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.207
Then I find very few patterns in the guest's memory 1.970 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.866
Then patterns cover at least 99% of the test FS size in the guest's memory 2.165 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.722
Then I find very few patterns in the guest's memory after 3 seconds 4.663 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 14.122
And I read the content of the test FS 0.283
Then patterns cover at least 99% of the test FS size in the guest's memory 2.103 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.561
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.891
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.304
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 7.192
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 12.784
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.399
Then patterns cover at least 128 MiB in the guest's memory 1.814 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.051
Then I find very few patterns in the guest's memory after 20 seconds 20.564 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.809
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:42.264
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 4:9.482
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.463
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.002 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:331 3.636
After features/support/hooks.rb:100 0.008