Project Number Date
test_Tails_ISO_stable 5970 26 Nov 2025, 13:54

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 13:0.876 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
54.471
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 8.223
And I prepare Tails for memory erasure tests 0.495
When I start a process allocating 128 MiB of memory with a known pattern 1.221
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 25.297 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.150
Then I find very few patterns in the guest's memory after 5 seconds 19.082 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 0.952
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.048
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 8.079
And I prepare Tails for memory erasure tests 0.382
And I find very few patterns in the guest's memory 14.087 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 15.821 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.098
Then I find very few patterns in the guest's memory after 3 seconds 16.961 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.905
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:38.957
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 8.186
And I prepare Tails for memory erasure tests 0.325
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.438
Then I find very few patterns in the guest's memory 14.149 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.182
Then patterns cover at least 75% of the test FS size in the guest's memory 15.294 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.248
Then I find very few patterns in the guest's memory after 3 seconds 19.870 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.185
And I read the content of the test FS 0.657
Then patterns cover at least 99% of the test FS size in the guest's memory 15.334 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.169
Then I find very few patterns in the guest's memory after 3 seconds 16.915 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 1.059
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:53.411
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 8.075
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.025
Then I find very few patterns in the guest's memory 13.410 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.292
Then patterns cover at least 99% of the test FS size in the guest's memory 13.750 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 16.779 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# read cache
When I mount the USB drive again 2.860
And I read the content of the test FS 0.632
Then patterns cover at least 99% of the test FS size in the guest's memory 14.853 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.319
Then I find very few patterns in the guest's memory after 3 seconds 15.608 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 0.974
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.359
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 8.719
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 9.398
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.311
Then patterns cover at least 128 MiB in the guest's memory 11.751 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.728 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.912
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:44.629
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:11.726
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.480
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 24.042 
Pattern coverage: 0.000% (0 MiB out of 1552 MiB reference memory)
After features/support/hooks.rb:331 3.541
After features/support/hooks.rb:100 0.028