Project Number Date
test_Tails_ISO_stable 5765 09 Jul 2025, 14:02

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 14:17.198 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
42.677
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 9.494
And I prepare Tails for memory erasure tests 0.449
When I start a process allocating 128 MiB of memory with a known pattern 1.244
Then patterns cover at least 128 MiB in the guest's memory 15.565 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.532
Then I find very few patterns in the guest's memory after 5 seconds 15.389 
Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)
After features/support/hooks.rb:330 1.536
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.046
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.014
Given I have started Tails from DVD without network and logged in 8.702
And I prepare Tails for memory erasure tests 0.765
And I find very few patterns in the guest's memory 11.988 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.635
Then patterns cover at least 99% of the test FS size in the guest's memory 15.463 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.367
Then I find very few patterns in the guest's memory after 3 seconds 17.123 
Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)
After features/support/hooks.rb:330 0.995
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:31.227
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 8.844
And I prepare Tails for memory erasure tests 0.562
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.051
Then I find very few patterns in the guest's memory 12.489 
Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.198
Then patterns cover at least 75% of the test FS size in the guest's memory 13.647 
Pattern coverage: 87.228% (111 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.703
Then I find very few patterns in the guest's memory after 3 seconds 14.361 
Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)
# read cache
When I mount the USB drive again 0.229
And I read the content of the test FS 0.669
Then patterns cover at least 99% of the test FS size in the guest's memory 11.568 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.090
Then I find very few patterns in the guest's memory after 3 seconds 14.810 
Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)
After features/support/hooks.rb:330 0.930
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:10.636
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 9.015
And I prepare Tails for memory erasure tests 0.572
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.759
Then I find very few patterns in the guest's memory 12.173 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.063
Then patterns cover at least 99% of the test FS size in the guest's memory 9.197 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory after 3 seconds 12.887 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
# read cache
When I mount the USB drive again 3.812
And I read the content of the test FS 0.444
Then patterns cover at least 99% of the test FS size in the guest's memory 21.597 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 21.986 
Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)
After features/support/hooks.rb:330 1.517
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.006
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 8.740
And I prepare Tails for memory erasure tests 0.533
When I fill a 128 MiB file with a known pattern on the root filesystem 22.920
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.565
Then patterns cover at least 128 MiB in the guest's memory 11.457 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.776 
Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)
After features/support/hooks.rb:330 3.503
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:49.604
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 7:1.498
And I prepare Tails for memory erasure tests 0.875
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.688
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.528 
Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)
After features/support/hooks.rb:330 3.609
After features/support/hooks.rb:100 0.012