Project Number Date
test_Tails_ISO_closed-issues-design-doc 4 29 May 2026, 15:18

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 7:38.421 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
18.510
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 6.795
And I prepare Tails for memory erasure tests 0.321
When I start a process allocating 128 MiB of memory with a known pattern 2.229
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.042 
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 6.933 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:335 0.884
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.363
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 6.621
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 1.759 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.595
Then patterns cover at least 99% of the test FS size in the guest's memory 1.975 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.297
Then I find very few patterns in the guest's memory after 3 seconds 4.779 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:335 0.946
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.148
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 6.700
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.134
Then I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.744
Then patterns cover at least 75% of the test FS size in the guest's memory 2.254 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.844
Then I find very few patterns in the guest's memory after 3 seconds 4.731 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.200
And I read the content of the test FS 0.395
Then patterns cover at least 99% of the test FS size in the guest's memory 2.020 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.346
Then I find very few patterns in the guest's memory after 3 seconds 4.720 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 0.628
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.417
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 6.588
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" 30.658
Then I find very few patterns in the guest's memory 1.770 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.408
Then patterns cover at least 99% of the test FS size in the guest's memory 1.905 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.540
Then I find very few patterns in the guest's memory after 3 seconds 4.745 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 4.263
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.755 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.369
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 0.910
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.153
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 6.619
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the root filesystem 26.384
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.809
Then patterns cover at least 128 MiB in the guest's memory 1.444 
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 20.477 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:335 3.425
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:33.828
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:52.369
And I prepare Tails for memory erasure tests 0.352
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.274
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.827 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:335 3.410
After features/support/hooks.rb:104 0.009