Project Number Date
test_Tails_ISO_devel 4289 23 Mar 2026, 11:06

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 7:22.840 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
18.248
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 6.658
And I prepare Tails for memory erasure tests 0.438
When I start a process allocating 128 MiB of memory with a known pattern 1.304
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.333 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.616
Then I find very few patterns in the guest's memory after 5 seconds 6.897 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.973
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.060
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 6.638
And I prepare Tails for memory erasure tests 0.377
And I find very few patterns in the guest's memory 2.083 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.584
Then patterns cover at least 99% of the test FS size in the guest's memory 1.967 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.000 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 0.729
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.274
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 6.610
And I prepare Tails for memory erasure tests 0.353
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.500
Then I find very few patterns in the guest's memory 1.889 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.135
Then patterns cover at least 75% of the test FS size in the guest's memory 2.242 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.812
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 2.104 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.341
Then I find very few patterns in the guest's memory after 3 seconds 4.918 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 1.027
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.159
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 6.895
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.864
Then I find very few patterns in the guest's memory 1.999 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.253
Then patterns cover at least 99% of the test FS size in the guest's memory 1.997 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.887 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 3.735
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.852 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 5.053 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 0.648
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.286
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 6.645
And I prepare Tails for memory erasure tests 0.373
When I fill a 128 MiB file with a known pattern on the root filesystem 12.895
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.090
Then patterns cover at least 128 MiB in the guest's memory 1.706 
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 20.569 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 3.765
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.810
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 4:0.572
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.842
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.064 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.456
After features/support/hooks.rb:100 0.008