Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 2 28 May 2026, 19:54

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 7:21.572 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
19.209
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 7.276
And I prepare Tails for memory erasure tests 0.355
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.029 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.542
Then I find very few patterns in the guest's memory after 5 seconds 6.758 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:335 1.358
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.743
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 6.795
And I prepare Tails for memory erasure tests 0.414
And I find very few patterns in the guest's memory 1.839 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.625
Then patterns cover at least 99% of the test FS size in the guest's memory 1.933 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.302
Then I find very few patterns in the guest's memory after 3 seconds 4.832 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:335 1.048
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.146
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 6.823
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.181
Then I find very few patterns in the guest's memory 1.701 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.436
Then patterns cover at least 75% of the test FS size in the guest's memory 2.162 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.674
Then I find very few patterns in the guest's memory after 3 seconds 4.880 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.138
And I read the content of the test FS 0.517
Then patterns cover at least 99% of the test FS size in the guest's memory 2.027 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.383
Then I find very few patterns in the guest's memory after 3 seconds 4.839 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 0.654
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
57.633
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 6.578
And I prepare Tails for memory erasure tests 0.391
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.054
Then I find very few patterns in the guest's memory 1.808 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.454
Then patterns cover at least 99% of the test FS size in the guest's memory 1.788 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory after 3 seconds 4.605 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
# read cache
When I mount the USB drive again 4.016
And I read the content of the test FS 0.311
Then patterns cover at least 99% of the test FS size in the guest's memory 1.921 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 4.749 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:335 0.891
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
53.774
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 6.536
And I prepare Tails for memory erasure tests 0.387
When I fill a 128 MiB file with a known pattern on the root filesystem 22.504
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.305
Then patterns cover at least 128 MiB in the guest's memory 1.536 
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 20.497 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 3.791
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:21.065
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:39.063
And I prepare Tails for memory erasure tests 0.326
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.629
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.040 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:335 3.693
After features/support/hooks.rb:104 0.020