Project Number Date
test_Tails_ISO_devel 4099 03 Dec 2025, 18:38

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 15:8.765 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
43.620
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 7.913
And I prepare Tails for memory erasure tests 0.366
When I start a process allocating 128 MiB of memory with a known pattern 1.158
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.498 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.138
Then I find very few patterns in the guest's memory after 5 seconds 19.545 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:331 0.968
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.302
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 7.947
And I prepare Tails for memory erasure tests 0.412
And I find very few patterns in the guest's memory 14.087 
Pattern coverage: 0.000% (0 MiB out of 1548 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.580
Then patterns cover at least 99% of the test FS size in the guest's memory 16.373 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.082
Then I find very few patterns in the guest's memory after 3 seconds 19.819 
Pattern coverage: 0.000% (0 MiB out of 1548 MiB reference memory)
After features/support/hooks.rb:331 0.762
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.252
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 7.816
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.826
Then I find very few patterns in the guest's memory 16.301 
Pattern coverage: 0.000% (0 MiB out of 1540 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 17.767 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.257
Then I find very few patterns in the guest's memory after 3 seconds 18.220 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
# read cache
When I mount the USB drive again 0.158
And I read the content of the test FS 0.513
Then patterns cover at least 99% of the test FS size in the guest's memory 14.726 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.157
Then I find very few patterns in the guest's memory after 3 seconds 16.978 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
After features/support/hooks.rb:331 0.716
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:52.612
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 7.879
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.716
Then I find very few patterns in the guest's memory 13.428 
Pattern coverage: 0.000% (0 MiB out of 1548 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.429
Then patterns cover at least 99% of the test FS size in the guest's memory 16.995 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory after 3 seconds 29.481 
Pattern coverage: 0.000% (0 MiB out of 1548 MiB reference memory)
# read cache
When I mount the USB drive again 3.045
And I read the content of the test FS 0.740
Then patterns cover at least 99% of the test FS size in the guest's memory 32.969 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.380
Then I find very few patterns in the guest's memory after 3 seconds 32.719 
Pattern coverage: 0.000% (0 MiB out of 1548 MiB reference memory)
After features/support/hooks.rb:331 1.220
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.220
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 7.657
And I prepare Tails for memory erasure tests 0.356
When I fill a 128 MiB file with a known pattern on the root filesystem 9.922
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.338
Then patterns cover at least 128 MiB in the guest's memory 21.343 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.052
Then I find very few patterns in the guest's memory after 20 seconds 25.548 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
After features/support/hooks.rb:331 3.600
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:46.757
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 7:13.218
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.496
When I trigger shutdown 0.332
Then I find very few patterns in the guest's memory after 20 seconds 23.347 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.769
After features/support/hooks.rb:100 0.016