Project Number Date
test_Tails_ISO_stable 5607 29 Apr 2025, 12:48

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 13:3.898 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
30.149
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 9.562
And I prepare Tails for memory erasure tests 0.492
When I start a process allocating 128 MiB of memory with a known pattern 3.626
Then patterns cover at least 128 MiB in the guest's memory 5.814 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.791
Then I find very few patterns in the guest's memory after 5 seconds 9.862 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
After features/support/hooks.rb:330 0.758
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.462
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 8.462
And I prepare Tails for memory erasure tests 1.098
And I find very few patterns in the guest's memory 4.392 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.044
Then patterns cover at least 99% of the test FS size in the guest's memory 3.822 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.720
Then I find very few patterns in the guest's memory after 3 seconds 6.920 
Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)
After features/support/hooks.rb:330 0.713
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.042
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 8.750
And I prepare Tails for memory erasure tests 0.511
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.585
Then I find very few patterns in the guest's memory 4.607 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.399
Then patterns cover at least 75% of the test FS size in the guest's memory 4.532 
Pattern coverage: 90.176% (115 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.222
Then I find very few patterns in the guest's memory after 3 seconds 7.038 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
# read cache
When I mount the USB drive again 0.228
And I read the content of the test FS 1.111
Then patterns cover at least 99% of the test FS size in the guest's memory 4.351 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.523
Then I find very few patterns in the guest's memory after 3 seconds 7.179 
Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)
After features/support/hooks.rb:330 1.034
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:20.967
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 8.877
And I prepare Tails for memory erasure tests 0.539
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.753
Then I find very few patterns in the guest's memory 3.256 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.318
Then patterns cover at least 99% of the test FS size in the guest's memory 3.386 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.933
Then I find very few patterns in the guest's memory after 3 seconds 6.067 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
# read cache
When I mount the USB drive again 4.220
And I read the content of the test FS 1.052
Then patterns cover at least 99% of the test FS size in the guest's memory 4.330 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.895
Then I find very few patterns in the guest's memory after 3 seconds 7.336 
Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)
After features/support/hooks.rb:330 1.413
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
52.383
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.806
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 13.687
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.905
Then patterns cover at least 128 MiB in the guest's memory 5.356 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.146 
Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)
After features/support/hooks.rb:330 3.661
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:59.893
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 8:13.078
And I prepare Tails for memory erasure tests 1.121
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.335
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.340 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
After features/support/hooks.rb:330 3.528
After features/support/hooks.rb:100 0.012