Project Number Date
test_Tails_ISO_closed-issues-design-doc 1 28 May 2026, 17:57

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 8:17.124 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
29.707
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 18.723
And I prepare Tails for memory erasure tests 0.402
When I start a process allocating 128 MiB of memory with a known pattern 1.253
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.130 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.224
Then I find very few patterns in the guest's memory after 5 seconds 6.974 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:335 1.111
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.351
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.089
And I prepare Tails for memory erasure tests 0.465
And I find very few patterns in the guest's memory 1.728 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.722
Then patterns cover at least 99% of the test FS size in the guest's memory 2.082 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.374
Then I find very few patterns in the guest's memory after 3 seconds 4.888 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 0.975
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.317
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.183
And I prepare Tails for memory erasure tests 0.466
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.235
Then I find very few patterns in the guest's memory 1.853 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.749
Then patterns cover at least 75% of the test FS size in the guest's memory 2.154 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.903
Then I find very few patterns in the guest's memory after 3 seconds 4.834 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
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 2.048 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 4.863 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:335 1.023
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:1.515
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.799
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.670
Then I find very few patterns in the guest's memory 1.686 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.523
Then patterns cover at least 99% of the test FS size in the guest's memory 2.032 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.633
Then I find very few patterns in the guest's memory after 3 seconds 4.761 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 3.655
And I read the content of the test FS 0.312
Then patterns cover at least 99% of the test FS size in the guest's memory 1.851 
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 4.689 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 1.157
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.359
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.005
Given I have started Tails from DVD without network and logged in 7.117
And I prepare Tails for memory erasure tests 0.519
When I fill a 128 MiB file with a known pattern on the root filesystem 26.543
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.155
Then patterns cover at least 128 MiB in the guest's memory 1.535 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.478 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:335 3.822
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:55.871
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:14.875
And I prepare Tails for memory erasure tests 1.442
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.454
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.092 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:335 3.507
After features/support/hooks.rb:104 0.015