Project Number Date
test_Tails_ISO_stable 6090 24 Jan 2026, 11:51

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 7:18.064 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
18.342
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 6.555
And I prepare Tails for memory erasure tests 0.435
When I start a process allocating 128 MiB of memory with a known pattern 2.255
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.058 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.157
Then I find very few patterns in the guest's memory after 5 seconds 6.879 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.984
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.621
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 6.653
And I prepare Tails for memory erasure tests 0.381
And I find very few patterns in the guest's memory 1.910 
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 2.138
Then patterns cover at least 99% of the test FS size in the guest's memory 2.034 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.757
Then I find very few patterns in the guest's memory after 3 seconds 4.746 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.622
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.789
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 6.852
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.232
Then I find very few patterns in the guest's memory 1.840 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.687
Then patterns cover at least 75% 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 1.062
Then I find very few patterns in the guest's memory after 3 seconds 4.818 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.512
Then patterns cover at least 99% of the test FS size in the guest's memory 2.114 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.312
Then I find very few patterns in the guest's memory after 3 seconds 4.879 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.103
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.807
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 6.502
And I prepare Tails for memory erasure tests 0.314
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.406
Then I find very few patterns in the guest's memory 1.798 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.933
Then patterns cover at least 99% of the test FS size in the guest's memory 1.874 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.736 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 4.073
And I read the content of the test FS 0.264
Then patterns cover at least 99% of the test FS size in the guest's memory 2.129 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 4.840 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.941
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.024
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 6.582
And I prepare Tails for memory erasure tests 0.309
When I fill a 128 MiB file with a known pattern on the root filesystem 13.662
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.427
Then patterns cover at least 128 MiB in the guest's memory 1.552 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.485 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 3.583
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:27.479
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.394
And I prepare Tails for memory erasure tests 0.295
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.826
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.956 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 3.685
After features/support/hooks.rb:100 0.008