Project Number Date
test_Tails_ISO_stable 5592 23 Apr 2025, 23:29

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 11:14.893 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
23.298
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 8.447
And I prepare Tails for memory erasure tests 0.480
When I start a process allocating 128 MiB of memory with a known pattern 1.312
Then patterns cover at least 128 MiB in the guest's memory 3.862 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.550
Then I find very few patterns in the guest's memory after 5 seconds 8.645 
Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)
After features/support/hooks.rb:330 1.655
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
25.454
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 8.438
And I prepare Tails for memory erasure tests 0.412
And I find very few patterns in the guest's memory 3.645 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.191
Then patterns cover at least 99% of the test FS size in the guest's memory 4.177 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.528
Then I find very few patterns in the guest's memory after 3 seconds 6.060 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
After features/support/hooks.rb:330 0.795
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
48.789
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 8.322
And I prepare Tails for memory erasure tests 0.423
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.123
Then I find very few patterns in the guest's memory 3.603 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.608
Then patterns cover at least 75% of the test FS size in the guest's memory 4.308 
Pattern coverage: 84.461% (107 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.835
Then I find very few patterns in the guest's memory after 3 seconds 6.797 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
# read cache
When I mount the USB drive again 0.237
And I read the content of the test FS 1.749
Then patterns cover at least 99% of the test FS size in the guest's memory 3.682 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.373
Then I find very few patterns in the guest's memory after 3 seconds 6.724 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 0.873
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.439
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 8.437
And I prepare Tails for memory erasure tests 0.419
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.353
Then I find very few patterns in the guest's memory 2.554 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.723
Then patterns cover at least 99% of the test FS size in the guest's memory 3.554 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.742
Then I find very few patterns in the guest's memory after 3 seconds 6.097 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# read cache
When I mount the USB drive again 4.416
And I read the content of the test FS 0.381
Then patterns cover at least 99% of the test FS size in the guest's memory 3.512 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.607
Then I find very few patterns in the guest's memory after 3 seconds 6.639 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
After features/support/hooks.rb:330 1.397
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
53.364
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 8.775
And I prepare Tails for memory erasure tests 0.432
When I fill a 128 MiB file with a known pattern on the root filesystem 16.961
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.025
Then patterns cover at least 128 MiB in the guest's memory 3.241 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.911 
Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)
After features/support/hooks.rb:330 3.501
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:30.546
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:46.689
And I prepare Tails for memory erasure tests 0.402
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.058
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.382 
Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)
After features/support/hooks.rb:330 3.526
After features/support/hooks.rb:100 0.010