Project Number Date
test_Tails_ISO_stable 5517 16 Mar 2025, 13:00

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 11:53.486 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
34.059
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 9.053
And I prepare Tails for memory erasure tests 0.440
When I start a process allocating 128 MiB of memory with a known pattern 2.382
Then patterns cover at least 128 MiB in the guest's memory 5.303 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 3.535
Then I find very few patterns in the guest's memory after 5 seconds 13.343 
Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)
After features/support/hooks.rb:330 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.901
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 9.713
And I prepare Tails for memory erasure tests 0.475
And I find very few patterns in the guest's memory 13.259 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.778
Then patterns cover at least 99% of the test FS size in the guest's memory 10.484 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.377
Then I find very few patterns in the guest's memory after 3 seconds 8.813 
Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)
After features/support/hooks.rb:330 0.866
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.851
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 8.391
And I prepare Tails for memory erasure tests 0.398
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.301
Then I find very few patterns in the guest's memory 4.086 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.326
Then patterns cover at least 75% of the test FS size in the guest's memory 4.987 
Pattern coverage: 86.239% (110 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.289
Then I find very few patterns in the guest's memory after 3 seconds 7.038 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
# read cache
When I mount the USB drive again 0.511
And I read the content of the test FS 0.818
Then patterns cover at least 99% of the test FS size in the guest's memory 4.165 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.894
Then I find very few patterns in the guest's memory after 3 seconds 6.642 
Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)
After features/support/hooks.rb:330 1.225
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:17.785
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 8.602
And I prepare Tails for memory erasure tests 0.486
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.206
Then I find very few patterns in the guest's memory 3.092 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.873
Then patterns cover at least 99% of the test FS size in the guest's memory 3.571 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.492
Then I find very few patterns in the guest's memory after 3 seconds 5.986 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
# read cache
When I mount the USB drive again 5.786
And I read the content of the test FS 1.094
Then patterns cover at least 99% of the test FS size in the guest's memory 3.738 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.175
Then I find very few patterns in the guest's memory after 3 seconds 6.677 
Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)
After features/support/hooks.rb:330 1.522
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.203
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 8.139
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 15.219
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.874
Then patterns cover at least 128 MiB in the guest's memory 2.830 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.040
Then I find very few patterns in the guest's memory after 20 seconds 20.699 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 3.535
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:32.684
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 6:45.636
And I prepare Tails for memory erasure tests 0.437
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.344
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.251 
Pattern coverage: 0.000% (0 MiB out of 920 MiB reference memory)
After features/support/hooks.rb:330 3.466
After features/support/hooks.rb:100 0.012