Project Number Date
test_Tails_ISO_devel 4417 27 May 2026, 11:22

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 7:44.516 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
17.997
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.465
And I prepare Tails for memory erasure tests 0.344
When I start a process allocating 128 MiB of memory with a known pattern 2.238
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.909 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.173
Then I find very few patterns in the guest's memory after 5 seconds 6.866 
Pattern coverage: 0.000% (0 MiB out of 1543 MiB reference memory)
After features/support/hooks.rb:335 1.007
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.654
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.532
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 1.782 
Pattern coverage: 0.000% (0 MiB out of 1545 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.584
Then patterns cover at least 99% of the test FS size in the guest's memory 1.885 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.337
Then I find very few patterns in the guest's memory after 3 seconds 5.113 
Pattern coverage: 0.000% (0 MiB out of 1545 MiB reference memory)
After features/support/hooks.rb:335 0.627
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.537
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.841
And I prepare Tails for memory erasure tests 0.412
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.348
Then I find very few patterns in the guest's memory 1.741 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.703
Then patterns cover at least 75% of the test FS size in the guest's memory 2.161 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.689
Then I find very few patterns in the guest's memory after 3 seconds 4.817 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# read cache
When I mount the USB drive again 0.177
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.040 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.764 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:335 0.685
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.915
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 6.783
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.291
Then I find very few patterns in the guest's memory 1.819 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.389
Then patterns cover at least 99% of the test FS size in the guest's memory 1.824 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 4.959 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# read cache
When I mount the USB drive again 4.474
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 1.925 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.474
Then I find very few patterns in the guest's memory after 3 seconds 4.737 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:335 0.887
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
49.374
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.892
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the root filesystem 17.673
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.037
Then patterns cover at least 128 MiB in the guest's memory 1.709 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.577 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:335 3.820
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:48.036
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.764
And I prepare Tails for memory erasure tests 0.351
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.965
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.949 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:335 3.752
After features/support/hooks.rb:104 0.009