Project Number Date
test_Tails_ISO_21373-poweroff-inhibit 9 02 Jun 2026, 20:07

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 7:50.694 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
17.748
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 6.936
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 1.160
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.136 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.186
Then I find very few patterns in the guest's memory after 5 seconds 6.916 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 1.043
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.475
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 6.954
And I prepare Tails for memory erasure tests 0.404
And I find very few patterns in the guest's memory 2.045 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.697
Then patterns cover at least 99% of the test FS size in the guest's memory 2.124 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.333
Then I find very few patterns in the guest's memory after 3 seconds 4.914 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.825
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.620
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 7.065
And I prepare Tails for memory erasure tests 0.400
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.613
Then I find very few patterns in the guest's memory 1.768 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.563
Then patterns cover at least 75% of the test FS size in the guest's memory 2.225 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.682
Then I find very few patterns in the guest's memory after 3 seconds 5.093 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.535
Then patterns cover at least 99% of the test FS size in the guest's memory 2.289 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.432
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:335 0.685
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
1:0.538
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 6.646
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.498
Then I find very few patterns in the guest's memory 1.700 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.385
Then patterns cover at least 99% of the test FS size in the guest's memory 1.845 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 5.071 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.204
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 1.999 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.401
Then I find very few patterns in the guest's memory after 3 seconds 4.601 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:335 0.782
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.380
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 6.755
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the root filesystem 25.180
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.929
Then patterns cover at least 128 MiB in the guest's memory 1.600 
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 20.510 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 3.755
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:43.932
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 4:4.364
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.237
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.960 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:335 3.882
After features/support/hooks.rb:104 0.009