Project Number Date
test_Tails_ISO_stable 5918 29 Oct 2025, 20:55

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 13:37.790 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
46.710
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 8.984
And I prepare Tails for memory erasure tests 0.430
When I start a process allocating 128 MiB of memory with a known pattern 2.240
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.979 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.946
Then I find very few patterns in the guest's memory after 5 seconds 19.127 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 0.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.384
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 8.679
And I prepare Tails for memory erasure tests 0.378
And I find very few patterns in the guest's memory 14.139 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.931
Then patterns cover at least 99% of the test FS size in the guest's memory 15.124 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.443
Then I find very few patterns in the guest's memory after 3 seconds 17.687 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.101
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.303
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 8.547
And I prepare Tails for memory erasure tests 0.452
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.575
Then I find very few patterns in the guest's memory 17.233 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.143
Then patterns cover at least 75% of the test FS size in the guest's memory 15.425 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.962
Then I find very few patterns in the guest's memory after 3 seconds 17.294 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.765
Then patterns cover at least 99% of the test FS size in the guest's memory 14.606 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.511
Then I find very few patterns in the guest's memory after 3 seconds 17.577 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.142
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:12.283
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 8.366
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.695
Then I find very few patterns in the guest's memory 13.996 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.015
Then patterns cover at least 99% of the test FS size in the guest's memory 14.102 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.722
Then I find very few patterns in the guest's memory after 3 seconds 16.682 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# read cache
When I mount the USB drive again 5.079
And I read the content of the test FS 0.660
Then patterns cover at least 99% of the test FS size in the guest's memory 17.286 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.629
Then I find very few patterns in the guest's memory after 3 seconds 16.642 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.087
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.911
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 8.585
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 10.835
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.681
Then patterns cover at least 128 MiB in the guest's memory 9.492 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.886 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 3.820
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:2.196
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 6:28.969
And I prepare Tails for memory erasure tests 0.367
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.348
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.501 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 3.915
After features/support/hooks.rb:100 0.014