Project Number Date
test_Tails_ISO_stable 6321 22 Apr 2026, 10:36

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 6:56.837 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
17.027
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 6.375
And I prepare Tails for memory erasure tests 0.580
When I start a process allocating 128 MiB of memory with a known pattern 1.154
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.934 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.187
Then I find very few patterns in the guest's memory after 5 seconds 6.794 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.704
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.970
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 6.524
And I prepare Tails for memory erasure tests 0.471
And I find very few patterns in the guest's memory 1.695 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.410
Then patterns cover at least 99% of the test FS size in the guest's memory 1.882 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.333
Then I find very few patterns in the guest's memory after 3 seconds 4.651 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.755
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.065
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 6.473
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.312
Then I find very few patterns in the guest's memory 1.825 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.012
Then patterns cover at least 75% of the test FS size in the guest's memory 1.941 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.673
Then I find very few patterns in the guest's memory after 3 seconds 4.670 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.441
Then patterns cover at least 99% of the test FS size in the guest's memory 1.885 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.337
Then I find very few patterns in the guest's memory after 3 seconds 4.865 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 0.724
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.510
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 6.473
And I prepare Tails for memory erasure tests 0.494
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.033
Then I find very few patterns in the guest's memory 1.773 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.094
Then patterns cover at least 99% of the test FS size in the guest's memory 1.779 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.524
Then I find very few patterns in the guest's memory after 3 seconds 4.688 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 3.479
And I read the content of the test FS 0.277
Then patterns cover at least 99% of the test FS size in the guest's memory 1.776 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.704 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 0.819
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.726
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 6.512
And I prepare Tails for memory erasure tests 0.468
When I fill a 128 MiB file with a known pattern on the root filesystem 11.729
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.947
Then patterns cover at least 128 MiB in the guest's memory 1.542 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.519 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.832
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:13.537
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 3:42.060
And I prepare Tails for memory erasure tests 0.316
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.140
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.015 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.709
After features/support/hooks.rb:100 0.010