Project Number Date
test_Tails_ISO_stable 5995 09 Dec 2025, 23:45

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 15:26.153 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
51.275
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.030
Given I have started Tails from DVD without network and logged in 9.866
And I prepare Tails for memory erasure tests 0.429
When I start a process allocating 128 MiB of memory with a known pattern 1.194
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.303 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.340
Then I find very few patterns in the guest's memory after 5 seconds 23.140 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 1.244
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.923
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 9.450
And I prepare Tails for memory erasure tests 0.513
And I find very few patterns in the guest's memory 14.932 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.867
Then patterns cover at least 99% of the test FS size in the guest's memory 16.520 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.459
Then I find very few patterns in the guest's memory after 3 seconds 18.180 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.247
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.464
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.503
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.737
Then I find very few patterns in the guest's memory 14.695 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.884
Then patterns cover at least 75% of the test FS size in the guest's memory 16.299 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.950
Then I find very few patterns in the guest's memory after 3 seconds 17.865 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.187
And I read the content of the test FS 0.620
Then patterns cover at least 99% of the test FS size in the guest's memory 15.880 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.586
Then I find very few patterns in the guest's memory after 3 seconds 16.842 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.614
After features/support/hooks.rb:100 0.018
Tags: @product @slow @not_release_blocker
3:32.248
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 9.318
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.061
Then I find very few patterns in the guest's memory 17.006 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.662
Then patterns cover at least 99% of the test FS size in the guest's memory 32.482 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.682
Then I find very few patterns in the guest's memory after 3 seconds 39.742 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 5.794
And I read the content of the test FS 0.419
Then patterns cover at least 99% of the test FS size in the guest's memory 33.743 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.600
Then I find very few patterns in the guest's memory after 3 seconds 34.298 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.131
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.235
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 8.828
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 11.391
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.805
Then patterns cover at least 128 MiB in the guest's memory 19.755 
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 24.026 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.598
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:11.004
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 6:38.068
And I prepare Tails for memory erasure tests 0.645
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.620
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.657 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.935
After features/support/hooks.rb:100 0.115