Project Number Date
test_Tails_ISO_21318-tor-browser-16.0 5 06 Jun 2026, 07:59

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 7:3.702 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
17.536
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.635
And I prepare Tails for memory erasure tests 0.323
When I start a process allocating 128 MiB of memory with a known pattern 1.163
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.962 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.799
Then I find very few patterns in the guest's memory after 5 seconds 6.651 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:335 0.691
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.237
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.457
And I prepare Tails for memory erasure tests 0.371
And I find very few patterns in the guest's memory 1.728 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.593
Then patterns cover at least 99% of the test FS size in the guest's memory 1.990 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.304
Then I find very few patterns in the guest's memory after 3 seconds 4.792 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:335 1.069
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
30.737
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.364
And I prepare Tails for memory erasure tests 0.332
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.203
Then I find very few patterns in the guest's memory 1.744 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.360
Then patterns cover at least 75% of the test FS size in the guest's memory 1.938 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.739
Then I find very few patterns in the guest's memory after 3 seconds 4.601 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.140
And I read the content of the test FS 0.452
Then patterns cover at least 99% of the test FS size in the guest's memory 1.810 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.384
Then I find very few patterns in the guest's memory after 3 seconds 4.665 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:335 1.063
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.054
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.457
And I prepare Tails for memory erasure tests 0.304
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.193
Then I find very few patterns in the guest's memory 1.659 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.360
Then patterns cover at least 99% of the test FS size in the guest's memory 1.823 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.503
Then I find very few patterns in the guest's memory after 3 seconds 4.774 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 3.916
And I read the content of the test FS 0.306
Then patterns cover at least 99% of the test FS size in the guest's memory 1.776 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 4.585 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:335 0.745
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
48.752
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.474
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the root filesystem 18.108
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.772
Then patterns cover at least 128 MiB in the guest's memory 1.552 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.023
Then I find very few patterns in the guest's memory after 20 seconds 20.530 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:335 3.809
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:15.384
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:35.933
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.347
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.799 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:335 3.781
After features/support/hooks.rb:104 0.008