Project Number Date
test_Tails_ISO_stable 6008 15 Dec 2025, 12:28

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 14:23.289 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
48.454
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 8.914
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 1.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.591 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.162
Then I find very few patterns in the guest's memory after 5 seconds 22.180 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.725
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.253
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 15.124
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 14.599 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.592
Then patterns cover at least 99% of the test FS size in the guest's memory 15.186 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.082
Then I find very few patterns in the guest's memory after 3 seconds 18.306 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 1.322
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:10.099
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 16.916
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.411
Then I find very few patterns in the guest's memory 18.969 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.256
Then patterns cover at least 75% of the test FS size in the guest's memory 28.103 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.357
Then I find very few patterns in the guest's memory after 3 seconds 22.865 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.188
And I read the content of the test FS 0.485
Then patterns cover at least 99% of the test FS size in the guest's memory 15.531 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.153
Then I find very few patterns in the guest's memory after 3 seconds 18.471 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.953
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:9.164
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.122
And I prepare Tails for memory erasure tests 0.371
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.705
Then I find very few patterns in the guest's memory 13.166 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.346
Then patterns cover at least 99% of the test FS size in the guest's memory 13.839 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 18.961 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 2.274
And I read the content of the test FS 0.339
Then patterns cover at least 99% of the test FS size in the guest's memory 14.375 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 24.722 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.793
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.463
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 8.251
And I prepare Tails for memory erasure tests 0.503
When I fill a 128 MiB file with a known pattern on the root filesystem 9.623
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.319
Then patterns cover at least 128 MiB in the guest's memory 12.402 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 23.344 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.848
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:16.853
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:44.068
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.132
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.227 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 3.852
After features/support/hooks.rb:100 0.014