Project Number Date
test_Tails_ISO_stable 6268 06 Apr 2026, 17:56

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 7:37.867 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
17.165
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 6.620
And I prepare Tails for memory erasure tests 0.371
When I start a process allocating 128 MiB of memory with a known pattern 1.225
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.048 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.223
Then I find very few patterns in the guest's memory after 5 seconds 6.675 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.637
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.555
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 19.271
And I prepare Tails for memory erasure tests 0.349
And I find very few patterns in the guest's memory 1.809 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.668
Then patterns cover at least 99% of the test FS size in the guest's memory 2.094 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.989 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.661
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.738
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 6.673
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.352
Then I find very few patterns in the guest's memory 1.959 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.413
Then patterns cover at least 75% of the test FS size in the guest's memory 2.203 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.826
Then I find very few patterns in the guest's memory after 3 seconds 4.914 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 0.196
And I read the content of the test FS 0.461
Then patterns cover at least 99% of the test FS size in the guest's memory 1.999 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.486
Then I find very few patterns in the guest's memory after 3 seconds 4.884 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.342
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.808
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.189
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.586
Then I find very few patterns in the guest's memory 1.736 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.393
Then patterns cover at least 99% of the test FS size in the guest's memory 1.920 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.627
Then I find very few patterns in the guest's memory after 3 seconds 4.975 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.424
And I read the content of the test FS 0.308
Then patterns cover at least 99% of the test FS size in the guest's memory 1.837 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.500
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:331 1.327
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.661
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 7.415
And I prepare Tails for memory erasure tests 0.466
When I fill a 128 MiB file with a known pattern on the root filesystem 12.808
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.517
Then patterns cover at least 128 MiB in the guest's memory 1.877 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.565 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.383
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:32.938
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 4:0.391
And I prepare Tails for memory erasure tests 0.376
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.208
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.947 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.864
After features/support/hooks.rb:100 0.028