Project Number Date
test_Tails_ISO_stable 6238 26 Mar 2026, 12:51

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 7:33.237 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
17.637
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 6.866
And I prepare Tails for memory erasure tests 0.408
When I start a process allocating 128 MiB of memory with a known pattern 1.162
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.155 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.189
Then I find very few patterns in the guest's memory after 5 seconds 6.854 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 0.656
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.975
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 6.809
And I prepare Tails for memory erasure tests 0.368
And I find very few patterns in the guest's memory 1.898 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.616
Then patterns cover at least 99% of the test FS size in the guest's memory 2.160 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.347
Then I find very few patterns in the guest's memory after 3 seconds 4.774 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.062
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.746
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 6.744
And I prepare Tails for memory erasure tests 0.417
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.486
Then I find very few patterns in the guest's memory 2.057 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.230
Then patterns cover at least 75% of the test FS size in the guest's memory 2.083 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.777
Then I find very few patterns in the guest's memory after 3 seconds 4.897 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 0.218
And I read the content of the test FS 0.507
Then patterns cover at least 99% of the test FS size in the guest's memory 2.134 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.342
Then I find very few patterns in the guest's memory after 3 seconds 4.849 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.116
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.453
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 6.788
And I prepare Tails for memory erasure tests 0.360
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.753
Then I find very few patterns in the guest's memory 1.830 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.202
Then patterns cover at least 99% of the test FS size in the guest's memory 1.907 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.539
Then I find very few patterns in the guest's memory after 3 seconds 4.667 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.938
And I read the content of the test FS 0.324
Then patterns cover at least 99% of the test FS size in the guest's memory 1.935 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 4.690 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.882
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.114
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 6.735
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the root filesystem 13.536
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.400
Then patterns cover at least 128 MiB in the guest's memory 1.524 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.530 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.535
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:41.308
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:9.613
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.277
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.975 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 3.432
After features/support/hooks.rb:100 0.009