Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 7 02 Jun 2026, 17:21

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 7:56.205 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
30.649
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 19.461
And I prepare Tails for memory erasure tests 0.359
When I start a process allocating 128 MiB of memory with a known pattern 1.155
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.453 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.197
Then I find very few patterns in the guest's memory after 5 seconds 7.020 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 0.784
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.129
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.003
Given I have started Tails from DVD without network and logged in 6.648
And I prepare Tails for memory erasure tests 0.385
And I find very few patterns in the guest's memory 1.706 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.686
Then patterns cover at least 99% of the test FS size in the guest's memory 2.344 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.385
Then I find very few patterns in the guest's memory after 3 seconds 4.972 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 0.760
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
34.233
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 6.856
And I prepare Tails for memory erasure tests 0.495
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.498
Then I find very few patterns in the guest's memory 1.922 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.912
Then patterns cover at least 75% of the test FS size in the guest's memory 2.420 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.759
Then I find very few patterns in the guest's memory after 3 seconds 4.863 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.327 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 5.036 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:335 1.165
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:0.245
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.008
Given I have started Tails from DVD without network and logged in 7.043
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.692
Then I find very few patterns in the guest's memory 2.062 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.630
Then patterns cover at least 99% of the test FS size in the guest's memory 2.162 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 4.685 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 4.317
And I read the content of the test FS 0.388
Then patterns cover at least 99% of the test FS size in the guest's memory 1.911 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.546
Then I find very few patterns in the guest's memory after 3 seconds 4.921 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 1.176
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.885
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 6.768
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the root filesystem 26.163
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.247
Then patterns cover at least 128 MiB in the guest's memory 1.757 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.557 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 3.722
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:35.063
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.699
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.813
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.082 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:335 3.754
After features/support/hooks.rb:104 0.009