Project Number Date
test_Tails_ISO_devel 4334 11 Apr 2026, 08:02

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 7:42.668 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
18.646
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.493
And I prepare Tails for memory erasure tests 0.529
When I start a process allocating 128 MiB of memory with a known pattern 2.468
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.059 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.386
Then I find very few patterns in the guest's memory after 5 seconds 6.708 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.629
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
29.909
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 18.642
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 1.699 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.982
Then patterns cover at least 99% of the test FS size in the guest's memory 1.993 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.399
Then I find very few patterns in the guest's memory after 3 seconds 4.789 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.599
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.827
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.554
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.113
Then I find very few patterns in the guest's memory 1.727 
Pattern coverage: 0.000% (0 MiB out of 1476 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 2.120 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.847
Then I find very few patterns in the guest's memory after 3 seconds 4.750 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.196
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 1.945 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.431
Then I find very few patterns in the guest's memory after 3 seconds 4.762 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.057
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.323
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.686
And I prepare Tails for memory erasure tests 0.431
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.168
Then I find very few patterns in the guest's memory 1.561 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.485
Then patterns cover at least 99% of the test FS size in the guest's memory 1.782 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.582
Then I find very few patterns in the guest's memory after 3 seconds 4.780 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 6.533
And I read the content of the test FS 0.304
Then patterns cover at least 99% of the test FS size in the guest's memory 1.817 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.571
Then I find very few patterns in the guest's memory after 3 seconds 4.615 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.218
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.433
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.564
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the root filesystem 12.219
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 10.303
Then patterns cover at least 128 MiB in the guest's memory 1.498 
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 20.489 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.613
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:26.528
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:54.379
And I prepare Tails for memory erasure tests 0.283
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.877
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.983 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 3.784
After features/support/hooks.rb:100 0.009