Project Number Date
test_Tails_ISO_stable 5680 28 May 2025, 09:14

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 12:5.659 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
24.821
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 8.919
And I prepare Tails for memory erasure tests 0.452
When I start a process allocating 128 MiB of memory with a known pattern 1.416
Then patterns cover at least 128 MiB in the guest's memory 4.273 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.557
Then I find very few patterns in the guest's memory after 5 seconds 9.202 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 0.828
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.135
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 9.076
And I prepare Tails for memory erasure tests 0.514
And I find very few patterns in the guest's memory 4.957 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.091
Then patterns cover at least 99% of the test FS size in the guest's memory 5.433 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.347
Then I find very few patterns in the guest's memory after 3 seconds 7.715 
Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)
After features/support/hooks.rb:330 0.769
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.985
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 9.082
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.325
Then I find very few patterns in the guest's memory 4.012 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.809
Then patterns cover at least 75% of the test FS size in the guest's memory 4.392 
Pattern coverage: 88.401% (112 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.866
Then I find very few patterns in the guest's memory after 3 seconds 6.972 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
# read cache
When I mount the USB drive again 0.268
And I read the content of the test FS 0.653
Then patterns cover at least 99% of the test FS size in the guest's memory 6.673 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory after 3 seconds 6.902 
Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)
After features/support/hooks.rb:330 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:33.955
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 9.158
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.416
Then I find very few patterns in the guest's memory 4.252 
Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.380
Then patterns cover at least 99% of the test FS size in the guest's memory 7.975 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.237
Then I find very few patterns in the guest's memory after 3 seconds 8.451 
Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)
# read cache
When I mount the USB drive again 4.274
And I read the content of the test FS 1.008
Then patterns cover at least 99% of the test FS size in the guest's memory 3.476 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.758
Then I find very few patterns in the guest's memory after 3 seconds 6.050 
Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)
After features/support/hooks.rb:330 1.576
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.826
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 8.258
And I prepare Tails for memory erasure tests 0.474
When I fill a 128 MiB file with a known pattern on the root filesystem 19.210
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.121
Then patterns cover at least 128 MiB in the guest's memory 4.473 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.269 
Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)
After features/support/hooks.rb:330 3.567
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:44.935
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 6:59.207
And I prepare Tails for memory erasure tests 0.701
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.636
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.373 
Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)
After features/support/hooks.rb:330 3.539
After features/support/hooks.rb:100 0.013