Project Number Date
test_Tails_ISO_devel 4368 30 Apr 2026, 11:07

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 7:9.085 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
18.989
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 6.529
And I prepare Tails for memory erasure tests 0.493
When I start a process allocating 128 MiB of memory with a known pattern 2.301
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.072 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.805
Then I find very few patterns in the guest's memory after 5 seconds 6.786 
Pattern coverage: 0.000% (0 MiB out of 1549 MiB reference memory)
After features/support/hooks.rb:331 0.843
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.553
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 6.534
And I prepare Tails for memory erasure tests 0.415
And I find very few patterns in the guest's memory 1.907 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.515
Then patterns cover at least 99% of the test FS size in the guest's memory 2.067 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.275
Then I find very few patterns in the guest's memory after 3 seconds 4.837 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 0.705
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.241
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 6.483
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.459
Then I find very few patterns in the guest's memory 1.661 
Pattern coverage: 0.000% (0 MiB out of 1546 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.007
Then patterns cover at least 75% of the test FS size in the guest's memory 2.137 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.649
Then I find very few patterns in the guest's memory after 3 seconds 4.738 
Pattern coverage: 0.000% (0 MiB out of 1546 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.465
Then patterns cover at least 99% of the test FS size in the guest's memory 2.004 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.299
Then I find very few patterns in the guest's memory after 3 seconds 4.846 
Pattern coverage: 0.000% (0 MiB out of 1546 MiB reference memory)
After features/support/hooks.rb:331 1.051
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.441
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 6.546
And I prepare Tails for memory erasure tests 0.357
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.155
Then I find very few patterns in the guest's memory 1.987 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.122
Then patterns cover at least 99% of the test FS size in the guest's memory 2.102 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 4.651 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
# read cache
When I mount the USB drive again 3.609
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.768 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory after 3 seconds 4.914 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.177
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 6.599
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 12.364
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.701
Then patterns cover at least 128 MiB in the guest's memory 1.590 
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 20.512 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:331 3.399
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:21.682
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 3:49.391
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.982
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.961 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.571
After features/support/hooks.rb:100 0.020