Project Number Date
test_Tails_ISO_devel 4220 09 Feb 2026, 18:33

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 7:10.182 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
18.680
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 6.393
And I prepare Tails for memory erasure tests 0.367
When I start a process allocating 128 MiB of memory with a known pattern 2.249
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.935 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.922
Then I find very few patterns in the guest's memory after 5 seconds 6.812 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.083
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.252
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 6.530
And I prepare Tails for memory erasure tests 0.384
And I find very few patterns in the guest's memory 1.740 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.065
Then patterns cover at least 99% of the test FS size in the guest's memory 1.910 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.804
Then I find very few patterns in the guest's memory after 3 seconds 4.815 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.967
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.955
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 6.454
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.099
Then I find very few patterns in the guest's memory 1.815 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.631
Then patterns cover at least 75% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.017
Then I find very few patterns in the guest's memory after 3 seconds 4.982 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.228
And I read the content of the test FS 0.429
Then patterns cover at least 99% of the test FS size in the guest's memory 1.947 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.287
Then I find very few patterns in the guest's memory after 3 seconds 4.748 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.897
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.509
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 6.430
And I prepare Tails for memory erasure tests 0.321
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.899
Then I find very few patterns in the guest's memory 1.733 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.008
Then patterns cover at least 99% of the test FS size in the guest's memory 1.714 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.477 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.967
And I read the content of the test FS 0.295
Then patterns cover at least 99% of the test FS size in the guest's memory 2.143 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.408
Then I find very few patterns in the guest's memory after 3 seconds 4.641 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.717
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.375
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 6.604
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the root filesystem 13.847
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.710
Then patterns cover at least 128 MiB in the guest's memory 1.411 
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 20.482 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.673
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:20.408
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 3:49.235
And I prepare Tails for memory erasure tests 0.361
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.887
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.915 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
After features/support/hooks.rb:331 3.798
After features/support/hooks.rb:100 0.009