Project Number Date
test_Tails_ISO_devel 4343 14 Apr 2026, 14:18

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 7:44.328 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
19.462
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.781
And I prepare Tails for memory erasure tests 0.432
When I start a process allocating 128 MiB of memory with a known pattern 2.267
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.993 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.806
Then I find very few patterns in the guest's memory after 5 seconds 7.181 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.549
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 6.752
And I prepare Tails for memory erasure tests 0.434
And I find very few patterns in the guest's memory 1.851 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.483
Then patterns cover at least 99% of the test FS size in the guest's memory 2.516 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.464
Then I find very few patterns in the guest's memory after 3 seconds 5.046 
Pattern coverage: 0.000% (0 MiB out of 1539 MiB reference memory)
After features/support/hooks.rb:331 0.800
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.935
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails from DVD without network and logged in 7.128
And I prepare Tails for memory erasure tests 0.495
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.677
Then I find very few patterns in the guest's memory 2.191 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.386
Then patterns cover at least 75% of the test FS size in the guest's memory 2.358 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.732
Then I find very few patterns in the guest's memory after 3 seconds 4.874 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
# read cache
When I mount the USB drive again 0.154
And I read the content of the test FS 0.396
Then patterns cover at least 99% of the test FS size in the guest's memory 1.969 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 5.141 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:331 0.892
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.228
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.948
And I prepare Tails for memory erasure tests 0.578
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.628
Then I find very few patterns in the guest's memory 2.486 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.093
Then patterns cover at least 99% of the test FS size in the guest's memory 2.029 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.655
Then I find very few patterns in the guest's memory after 3 seconds 4.702 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# read cache
When I mount the USB drive again 3.467
And I read the content of the test FS 0.417
Then patterns cover at least 99% of the test FS size in the guest's memory 1.954 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.418
Then I find very few patterns in the guest's memory after 3 seconds 4.847 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 1.165
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.126
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 7.136
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 13.348
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.984
Then patterns cover at least 128 MiB in the guest's memory 1.653 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.549 
Pattern coverage: 0.000% (0 MiB out of 1538 MiB reference memory)
After features/support/hooks.rb:331 3.485
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:47.027
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 4:14.377
And I prepare Tails for memory erasure tests 0.326
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.200
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.117 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 3.998
After features/support/hooks.rb:100 0.013