Project Number Date
test_Tails_ISO_stable 6734 10 Oct 2026, 11:36

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 7:29.091 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
19.808
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.492
And I prepare Tails for memory erasure tests 0.317
When I start a process allocating 128 MiB of memory with a known pattern 2.235
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.808 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.201
Then I find very few patterns in the guest's memory after 5 seconds 7.753 
Pattern coverage: 0.000% (0 MiB out of 1383 MiB reference memory)
After features/support/hooks.rb:339 0.909
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.508
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.318
And I prepare Tails for memory erasure tests 0.293
And I find very few patterns in the guest's memory 2.614 
Pattern coverage: 0.000% (0 MiB out of 1382 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.662
Then patterns cover at least 99% of the test FS size in the guest's memory 2.840 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.456
Then I find very few patterns in the guest's memory after 3 seconds 6.323 
Pattern coverage: 0.000% (0 MiB out of 1382 MiB reference memory)
After features/support/hooks.rb:339 0.700
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.226
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.352
And I prepare Tails for memory erasure tests 0.301
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.285
Then I find very few patterns in the guest's memory 2.657 
Pattern coverage: 0.000% (0 MiB out of 1380 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.878
Then patterns cover at least 75% of the test FS size in the guest's memory 3.673 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.937
Then I find very few patterns in the guest's memory after 3 seconds 5.725 
Pattern coverage: 0.000% (0 MiB out of 1380 MiB reference memory)
# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.563
Then patterns cover at least 99% of the test FS size in the guest's memory 2.863 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 6.368 
Pattern coverage: 0.000% (0 MiB out of 1380 MiB reference memory)
After features/support/hooks.rb:339 1.005
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.880
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.312
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.723
Then I find very few patterns in the guest's memory 2.735 
Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.321
Then patterns cover at least 99% of the test FS size in the guest's memory 2.882 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.487
Then I find very few patterns in the guest's memory after 3 seconds 5.491 
Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)
# read cache
When I mount the USB drive again 3.924
And I read the content of the test FS 0.381
Then patterns cover at least 99% of the test FS size in the guest's memory 3.308 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory after 3 seconds 5.494 
Pattern coverage: 0.000% (0 MiB out of 1386 MiB reference memory)
After features/support/hooks.rb:339 0.824
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.493
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.394
And I prepare Tails for memory erasure tests 0.332
When I fill a 128 MiB file with a known pattern on the root filesystem 12.333
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.417
Then patterns cover at least 128 MiB in the guest's memory 2.275 
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 20.734 
Pattern coverage: 0.000% (0 MiB out of 1380 MiB reference memory)
After features/support/hooks.rb:339 3.604
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:21.172
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.554
And I prepare Tails for memory erasure tests 0.249
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.274
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 21.084 
Pattern coverage: 0.000% (0 MiB out of 1417 MiB reference memory)
After features/support/hooks.rb:339 3.591
After features/support/hooks.rb:108 0.022