Project Number Date
test_Tails_ISO_stable 5932 05 Nov 2025, 12:23

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 14:9.457 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
46.382
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 8.540
And I prepare Tails for memory erasure tests 0.557
When I start a process allocating 128 MiB of memory with a known pattern 2.368
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.175 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.223
Then I find very few patterns in the guest's memory after 5 seconds 19.517 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.753
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.039
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 8.994
And I prepare Tails for memory erasure tests 0.411
And I find very few patterns in the guest's memory 14.888 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.140
Then patterns cover at least 99% of the test FS size in the guest's memory 16.400 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.410
Then I find very few patterns in the guest's memory after 3 seconds 17.792 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 2.109
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:5.469
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 9.762
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.037
Then I find very few patterns in the guest's memory 14.387 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.519
Then patterns cover at least 75% of the test FS size in the guest's memory 16.579 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.918
Then I find very few patterns in the guest's memory after 3 seconds 22.087 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 0.201
And I read the content of the test FS 0.614
Then patterns cover at least 99% of the test FS size in the guest's memory 15.042 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.464
Then I find very few patterns in the guest's memory after 3 seconds 34.416 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.239
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:23.522
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 8.227
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.534
Then I find very few patterns in the guest's memory 20.881 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.676
Then patterns cover at least 99% of the test FS size in the guest's memory 13.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.673
Then I find very few patterns in the guest's memory after 3 seconds 19.216 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 4.655
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 16.702 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 24.610 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 0.977
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.074
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 8.439
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 10.935
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.831
Then patterns cover at least 128 MiB in the guest's memory 10.618 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.768 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 3.589
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:56.969
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 6:23.784
And I prepare Tails for memory erasure tests 0.350
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.409
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.412 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:331 3.763
After features/support/hooks.rb:100 0.021