Project Number Date
test_Tails_ISO_stable 6405 26 May 2026, 20:04

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 8:0.323 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
18.644
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.767
And I prepare Tails for memory erasure tests 0.370
When I start a process allocating 128 MiB of memory with a known pattern 1.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.626 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.652
Then I find very few patterns in the guest's memory after 5 seconds 7.028 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:335 0.968
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
19.359
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.006
Given I have started Tails from DVD without network and logged in 6.979
And I prepare Tails for memory erasure tests 0.513
And I find very few patterns in the guest's memory 2.151 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.916
Then patterns cover at least 99% of the test FS size in the guest's memory 2.299 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.098 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:335 1.102
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
35.090
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails from DVD without network and logged in 7.091
And I prepare Tails for memory erasure tests 0.489
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.160
Then I find very few patterns in the guest's memory 2.047 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.946
Then patterns cover at least 75% of the test FS size in the guest's memory 2.147 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.745
Then I find very few patterns in the guest's memory after 3 seconds 5.062 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 0.210
And I read the content of the test FS 0.487
Then patterns cover at least 99% of the test FS size in the guest's memory 2.222 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 5.033 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:335 0.724
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.523
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.758
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" 26.614
Then I find very few patterns in the guest's memory 2.145 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.673
Then patterns cover at least 99% of the test FS size in the guest's memory 2.088 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.661
Then I find very few patterns in the guest's memory after 3 seconds 4.654 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 3.440
And I read the content of the test FS 0.347
Then patterns cover at least 99% of the test FS size in the guest's memory 2.205 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.082 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:335 1.126
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.543
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.082
And I prepare Tails for memory erasure tests 0.360
When I fill a 128 MiB file with a known pattern on the root filesystem 26.889
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.606
Then patterns cover at least 128 MiB in the guest's memory 1.784 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.810 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:335 3.603
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:51.161
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.007
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:10.113
And I prepare Tails for memory erasure tests 0.329
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.743
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.968 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:335 3.666
After features/support/hooks.rb:104 0.048