Project Number Date
test_Tails_ISO_stable 5697 03 Jun 2025, 18:44

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 12:19.938 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
25.522
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 8.390
And I prepare Tails for memory erasure tests 0.536
When I start a process allocating 128 MiB of memory with a known pattern 2.347
Then patterns cover at least 128 MiB in the guest's memory 4.475 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 1.036
Then I find very few patterns in the guest's memory after 5 seconds 8.735 
Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)
After features/support/hooks.rb:330 0.887
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.661
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 8.586
And I prepare Tails for memory erasure tests 0.490
And I find very few patterns in the guest's memory 3.931 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.119
Then patterns cover at least 99% of the test FS size in the guest's memory 4.459 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.501
Then I find very few patterns in the guest's memory after 3 seconds 6.573 
Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)
After features/support/hooks.rb:330 0.738
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.616
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 8.101
And I prepare Tails for memory erasure tests 0.457
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.023
Then I find very few patterns in the guest's memory 3.700 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.553
Then patterns cover at least 75% of the test FS size in the guest's memory 4.135 
Pattern coverage: 86.916% (110 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.957
Then I find very few patterns in the guest's memory after 3 seconds 6.575 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
# read cache
When I mount the USB drive again 0.244
And I read the content of the test FS 0.621
Then patterns cover at least 99% of the test FS size in the guest's memory 4.119 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.352
Then I find very few patterns in the guest's memory after 3 seconds 6.772 
Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)
After features/support/hooks.rb:330 0.911
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:26.055
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 8.143
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.769
Then I find very few patterns in the guest's memory 3.260 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.013
Then patterns cover at least 99% of the test FS size in the guest's memory 3.512 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.777
Then I find very few patterns in the guest's memory after 3 seconds 6.498 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# read cache
When I mount the USB drive again 5.767
And I read the content of the test FS 0.408
Then patterns cover at least 99% of the test FS size in the guest's memory 6.408 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.906
Then I find very few patterns in the guest's memory after 3 seconds 6.152 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 1.373
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.869
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 8.244
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 15.810
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.187
Then patterns cover at least 128 MiB in the guest's memory 3.380 
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 20.802 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 3.519
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:20.213
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 7:34.791
And I prepare Tails for memory erasure tests 1.236
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.743
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.424 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
After features/support/hooks.rb:330 3.544
After features/support/hooks.rb:100 0.014