Project Number Date
test_Tails_ISO_21651-persist-gnome-software-dconf-state 1 22 Jul 2026, 18:36

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 7:44.929 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
18.031
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.624
And I prepare Tails for memory erasure tests 0.322
When I start a process allocating 128 MiB of memory with a known pattern 2.184
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.005 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.175
Then I find very few patterns in the guest's memory after 5 seconds 6.719 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 0.861
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.481
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.511
And I prepare Tails for memory erasure tests 0.387
And I find very few patterns in the guest's memory 1.731 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.579
Then patterns cover at least 99% of the test FS size in the guest's memory 1.865 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.412
Then I find very few patterns in the guest's memory after 3 seconds 4.993 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.770
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.685
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.668
And I prepare Tails for memory erasure tests 0.322
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.041
Then I find very few patterns in the guest's memory 1.751 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.626
Then patterns cover at least 75% of the test FS size in the guest's memory 2.046 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.787
Then I find very few patterns in the guest's memory after 3 seconds 4.775 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.139
And I read the content of the test FS 0.474
Then patterns cover at least 99% of the test FS size in the guest's memory 1.934 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.421
Then I find very few patterns in the guest's memory after 3 seconds 4.697 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.575
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.755
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.617
And I prepare Tails for memory erasure tests 0.312
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.436
Then I find very few patterns in the guest's memory 1.740 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.043
Then patterns cover at least 99% of the test FS size in the guest's memory 1.853 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 4.644 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 4.515
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 1.818 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.341
Then I find very few patterns in the guest's memory after 3 seconds 4.629 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 1.195
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.217
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.573
And I prepare Tails for memory erasure tests 0.304
When I fill a 128 MiB file with a known pattern on the root filesystem 31.921
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.498
Then patterns cover at least 128 MiB in the guest's memory 1.433 
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 20.480 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.835
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:35.757
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.546
And I prepare Tails for memory erasure tests 0.315
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.999
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.891 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:339 3.508
After features/support/hooks.rb:108 0.014