Project Number Date
test_Tails_ISO_stable 6027 30 Dec 2025, 11:58

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 14:20.918 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
47.848
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 9.397
And I prepare Tails for memory erasure tests 0.457
When I start a process allocating 128 MiB of memory with a known pattern 2.335
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.543 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.272
Then I find very few patterns in the guest's memory after 5 seconds 18.841 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.370
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.678
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.588
And I prepare Tails for memory erasure tests 0.413
And I find very few patterns in the guest's memory 14.185 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.816
Then patterns cover at least 99% of the test FS size in the guest's memory 22.244 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.491
Then I find very few patterns in the guest's memory after 3 seconds 16.938 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.767
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:51.134
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 8.750
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.697
Then I find very few patterns in the guest's memory 14.628 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.882
Then patterns cover at least 75% of the test FS size in the guest's memory 16.263 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.993
Then I find very few patterns in the guest's memory after 3 seconds 18.235 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.201
And I read the content of the test FS 0.572
Then patterns cover at least 99% of the test FS size in the guest's memory 18.417 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.570
Then I find very few patterns in the guest's memory after 3 seconds 22.423 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.969
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:8.706
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 8.475
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.014
Then I find very few patterns in the guest's memory 14.316 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.886
Then patterns cover at least 99% of the test FS size in the guest's memory 28.858 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.605
Then I find very few patterns in the guest's memory after 3 seconds 32.885 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.491
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 30.503 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory after 3 seconds 31.209 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.189
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.580
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 8.623
And I prepare Tails for memory erasure tests 0.421
When I fill a 128 MiB file with a known pattern on the root filesystem 12.537
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.204
Then patterns cover at least 128 MiB in the guest's memory 12.976 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.804 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 4.026
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:27.970
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.024
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:44.198
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.243
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 26.098 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 4.813
After features/support/hooks.rb:100 0.016