Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 24 10 Jun 2026, 20:01

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 7:40.620 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
19.874
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.013
Given I have started Tails from DVD without network and logged in 7.403
And I prepare Tails for memory erasure tests 0.385
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 1.986 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.651
Then I find very few patterns in the guest's memory after 5 seconds 7.146 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:335 1.234
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.006
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 7.109
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 1.775 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.640
Then patterns cover at least 99% of the test FS size in the guest's memory 1.894 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.317
Then I find very few patterns in the guest's memory after 3 seconds 4.854 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:335 1.148
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.787
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.011
Given I have started Tails from DVD without network and logged in 7.271
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.402
Then I find very few patterns in the guest's memory 1.826 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.519
Then patterns cover at least 75% of the test FS size in the guest's memory 2.387 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.748
Then I find very few patterns in the guest's memory after 3 seconds 5.054 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.452
Then patterns cover at least 99% of the test FS size in the guest's memory 2.350 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:335 1.012
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.962
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 6.650
And I prepare Tails for memory erasure tests 0.464
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.476
Then I find very few patterns in the guest's memory 1.759 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.463
Then patterns cover at least 99% of the test FS size in the guest's memory 1.914 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.566
Then I find very few patterns in the guest's memory after 3 seconds 4.902 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# read cache
When I mount the USB drive again 4.276
And I read the content of the test FS 0.302
Then patterns cover at least 99% of the test FS size in the guest's memory 2.115 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.447
Then I find very few patterns in the guest's memory after 3 seconds 4.622 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:335 0.844
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.637
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.010
Given I have started Tails from DVD without network and logged in 6.943
And I prepare Tails for memory erasure tests 0.549
When I fill a 128 MiB file with a known pattern on the root filesystem 28.060
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.009
Then patterns cover at least 128 MiB in the guest's memory 1.516 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.550 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:335 3.549
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:30.352
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.140
And I prepare Tails for memory erasure tests 0.327
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.700
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.175 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:335 3.535
After features/support/hooks.rb:104 0.011