Project Number Date
test_Tails_ISO_devel 4344 14 Apr 2026, 16:42

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 7:32.962 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
18.022
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.680
And I prepare Tails for memory erasure tests 0.531
When I start a process allocating 128 MiB of memory with a known pattern 1.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.185 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.426
Then I find very few patterns in the guest's memory after 5 seconds 6.997 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.803
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.462
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.718
And I prepare Tails for memory erasure tests 0.548
And I find very few patterns in the guest's memory 1.669 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.582
Then patterns cover at least 99% of the test FS size in the guest's memory 2.064 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.102
Then I find very few patterns in the guest's memory after 3 seconds 4.776 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.805
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.325
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.785
And I prepare Tails for memory erasure tests 0.753
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.221
Then I find very few patterns in the guest's memory 1.818 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.658
Then patterns cover at least 75% of the test FS size in the guest's memory 2.342 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory after 3 seconds 4.843 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 0.405
And I read the content of the test FS 0.492
Then patterns cover at least 99% of the test FS size in the guest's memory 1.967 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 4.784 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.113
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:12.743
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 6.831
And I prepare Tails for memory erasure tests 0.579
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.958
Then I find very few patterns in the guest's memory 1.744 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.550
Then patterns cover at least 99% of the test FS size in the guest's memory 1.926 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.578
Then I find very few patterns in the guest's memory after 3 seconds 4.635 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 9.620
And I read the content of the test FS 0.351
Then patterns cover at least 99% of the test FS size in the guest's memory 1.877 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 4.576 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 1.035
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.369
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.552
And I prepare Tails for memory erasure tests 0.603
When I fill a 128 MiB file with a known pattern on the root filesystem 12.950
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 8.125
Then patterns cover at least 128 MiB in the guest's memory 1.599 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.533 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.759
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:20.038
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.050
And I prepare Tails for memory erasure tests 0.324
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.743
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.915 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 3.743
After features/support/hooks.rb:100 0.014