Project Number Date
test_Tails_ISO_stable 6120 04 Feb 2026, 17:08

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 12:51.933 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
45.390
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 8.124
And I prepare Tails for memory erasure tests 0.391
When I start a process allocating 128 MiB of memory with a known pattern 1.148
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.215 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.133
Then I find very few patterns in the guest's memory after 5 seconds 19.377 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.948
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.510
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 7.601
And I prepare Tails for memory erasure tests 0.433
And I find very few patterns in the guest's memory 14.283 
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 0.657
Then patterns cover at least 99% of the test FS size in the guest's memory 14.864 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.090
Then I find very few patterns in the guest's memory after 3 seconds 17.578 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.826
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:39.475
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 7.786
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.834
Then I find very few patterns in the guest's memory 14.637 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.081
Then patterns cover at least 75% of the test FS size in the guest's memory 15.297 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.223
Then I find very few patterns in the guest's memory after 3 seconds 18.610 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.546
Then patterns cover at least 99% of the test FS size in the guest's memory 15.952 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.175
Then I find very few patterns in the guest's memory after 3 seconds 17.774 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 0.978
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:16.386
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 7.819
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.502
Then I find very few patterns in the guest's memory 12.821 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.319
Then patterns cover at least 99% of the test FS size in the guest's memory 16.056 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.421
Then I find very few patterns in the guest's memory after 3 seconds 21.350 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 2.055
And I read the content of the test FS 0.349
Then patterns cover at least 99% of the test FS size in the guest's memory 14.987 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.328
Then I find very few patterns in the guest's memory after 3 seconds 33.988 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 0.749
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.698
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 7.932
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the root filesystem 8.585
# 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 21.071 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 26.402 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 3.528
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:10.471
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 5:37.256
And I prepare Tails for memory erasure tests 0.416
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.112
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.674 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 3.620
After features/support/hooks.rb:100 0.015