Project Number Date
test_Tails_ISO_stable 6243 28 Mar 2026, 11:31

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 7:44.256 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
17.615
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 6.580
And I prepare Tails for memory erasure tests 0.503
When I start a process allocating 128 MiB of memory with a known pattern 1.157
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.171 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.316
Then I find very few patterns in the guest's memory after 5 seconds 6.885 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.675
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.346
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 6.662
And I prepare Tails for memory erasure tests 0.477
And I find very few patterns in the guest's memory 1.836 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.604
Then patterns cover at least 99% of the test FS size in the guest's memory 2.578 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.386
Then I find very few patterns in the guest's memory after 3 seconds 4.801 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.016
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.009
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 6.711
And I prepare Tails for memory erasure tests 0.595
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.619
Then I find very few patterns in the guest's memory 1.959 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.278
Then patterns cover at least 75% of the test FS size in the guest's memory 2.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.977
Then I find very few patterns in the guest's memory after 3 seconds 4.729 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.420
Then patterns cover at least 99% of the test FS size in the guest's memory 1.942 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 5.061 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.990
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:14.300
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 6.784
And I prepare Tails for memory erasure tests 0.626
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.417
Then I find very few patterns in the guest's memory 1.734 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.733
Then patterns cover at least 99% of the test FS size in the guest's memory 1.895 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.661
Then I find very few patterns in the guest's memory after 3 seconds 4.503 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 18.780
And I read the content of the test FS 0.307
Then patterns cover at least 99% of the test FS size in the guest's memory 1.709 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory after 3 seconds 4.628 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.313
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.826
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 6.982
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 13.460
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.740
Then patterns cover at least 128 MiB in the guest's memory 1.704 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.534 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.828
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.159
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 4:0.071
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.795
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.920 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 3.628
After features/support/hooks.rb:100 0.009