Project Number Date
test_Tails_ISO_devel 4353 21 Apr 2026, 07:40

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 7:16.023 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
17.727
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 6.523
And I prepare Tails for memory erasure tests 0.349
When I start a process allocating 128 MiB of memory with a known pattern 1.440
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.324 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.235
Then I find very few patterns in the guest's memory after 5 seconds 6.853 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.022
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.493
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 6.509
And I prepare Tails for memory erasure tests 0.425
And I find very few patterns in the guest's memory 1.753 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.671
Then patterns cover at least 99% of the test FS size in the guest's memory 2.102 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.286
Then I find very few patterns in the guest's memory after 3 seconds 4.743 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.789
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.671
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 6.520
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.588
Then I find very few patterns in the guest's memory 1.881 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.040
Then patterns cover at least 75% of the test FS size in the guest's memory 2.041 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.727
Then I find very few patterns in the guest's memory after 3 seconds 4.739 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.462
Then patterns cover at least 99% of the test FS size in the guest's memory 1.875 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.367
Then I find very few patterns in the guest's memory after 3 seconds 4.889 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.673
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.439
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 6.654
And I prepare Tails for memory erasure tests 0.379
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.226
Then I find very few patterns in the guest's memory 1.754 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.999
Then patterns cover at least 99% of the test FS size in the guest's memory 1.836 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory after 3 seconds 4.722 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 3.356
And I read the content of the test FS 0.348
Then patterns cover at least 99% of the test FS size in the guest's memory 1.751 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.423
Then I find very few patterns in the guest's memory after 3 seconds 4.513 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.883
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.747
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 7.015
And I prepare Tails for memory erasure tests 0.517
When I fill a 128 MiB file with a known pattern on the root filesystem 12.440
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.761
Then patterns cover at least 128 MiB in the guest's memory 1.501 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.503 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 3.904
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.944
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 4:1.767
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.927
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.923 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 3.860
After features/support/hooks.rb:100 0.085