Project Number Date
test_Tails_ISO_stable 6337 30 Apr 2026, 07:42

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 7:38.410 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
21.371
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 6.718
And I prepare Tails for memory erasure tests 0.400
When I start a process allocating 128 MiB of memory with a known pattern 4.944
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.129 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.300
Then I find very few patterns in the guest's memory after 5 seconds 6.878 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 1.080
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.920
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 6.775
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 1.766 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.602
Then patterns cover at least 99% of the test FS size in the guest's memory 2.085 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.455
Then I find very few patterns in the guest's memory after 3 seconds 4.820 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 1.375
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.990
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 6.994
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.422
Then I find very few patterns in the guest's memory 1.921 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.347
Then patterns cover at least 75% of the test FS size in the guest's memory 2.492 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.650
Then I find very few patterns in the guest's memory after 3 seconds 4.673 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 2.057 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.876 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.017
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.909
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 6.799
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.874
Then I find very few patterns in the guest's memory 1.855 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.574
Then patterns cover at least 99% of the test FS size in the guest's memory 1.873 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.691
Then I find very few patterns in the guest's memory after 3 seconds 4.774 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 5.534
And I read the content of the test FS 0.280
Then patterns cover at least 99% of the test FS size in the guest's memory 2.137 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.635 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 1.076
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.432
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 6.848
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the root filesystem 12.799
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 8.311
Then patterns cover at least 128 MiB in the guest's memory 1.557 
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 20.541 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:331 3.886
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:30.785
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 3:58.362
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.201
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.920 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 3.490
After features/support/hooks.rb:100 0.010