Project Number Date
test_Tails_ISO_devel 4049 03 Nov 2025, 09:35

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 15:45.342 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
50.695
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 8.521
And I prepare Tails for memory erasure tests 0.395
When I start a process allocating 128 MiB of memory with a known pattern 2.273
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.743 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.229
Then I find very few patterns in the guest's memory after 5 seconds 24.531 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 0.648
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.124
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 8.451
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 13.645 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.443
Then patterns cover at least 99% of the test FS size in the guest's memory 15.399 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.360
Then I find very few patterns in the guest's memory after 3 seconds 16.414 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.758
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:53.817
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 8.310
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.545
Then I find very few patterns in the guest's memory 16.996 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.533
Then patterns cover at least 75% of the test FS size in the guest's memory 21.624 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.923
Then I find very few patterns in the guest's memory after 3 seconds 29.541 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 0.234
And I read the content of the test FS 1.377
Then patterns cover at least 99% of the test FS size in the guest's memory 49.256 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 35.483 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.812
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:18.434
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 8.339
And I prepare Tails for memory erasure tests 0.352
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.112
Then I find very few patterns in the guest's memory 28.059 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.514
Then patterns cover at least 99% of the test FS size in the guest's memory 30.639 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.847
Then I find very few patterns in the guest's memory after 3 seconds 31.029 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 3.902
And I read the content of the test FS 0.494
Then patterns cover at least 99% of the test FS size in the guest's memory 29.330 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 33.269 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 1.170
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:8.421
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 8.145
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 9.998
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.108
Then patterns cover at least 128 MiB in the guest's memory 24.023 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.686 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.778
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:37.848
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 6:5.552
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.628
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.296 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 3.600
After features/support/hooks.rb:100 0.014