Project Number Date
test_Tails_ISO_devel 4168 15 Jan 2026, 12:20

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 13:0.502 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
46.003
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.236
And I prepare Tails for memory erasure tests 0.378
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.579 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 19.353 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.900
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.088
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 7.996
And I prepare Tails for memory erasure tests 0.400
And I find very few patterns in the guest's memory 14.522 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.823
Then patterns cover at least 99% of the test FS size in the guest's memory 14.364 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.317
Then I find very few patterns in the guest's memory after 3 seconds 16.664 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.890
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.194
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 8.310
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.753
Then I find very few patterns in the guest's memory 14.530 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.349
Then patterns cover at least 75% of the test FS size in the guest's memory 16.102 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.468
Then I find very few patterns in the guest's memory after 3 seconds 17.279 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.652
Then patterns cover at least 99% of the test FS size in the guest's memory 15.897 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.364
Then I find very few patterns in the guest's memory after 3 seconds 17.845 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.831
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:23.570
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 8.503
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.574
Then I find very few patterns in the guest's memory 13.015 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 5.055
Then patterns cover at least 99% of the test FS size in the guest's memory 12.985 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.690
Then I find very few patterns in the guest's memory after 3 seconds 15.614 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
# read cache
When I mount the USB drive again 5.004
And I read the content of the test FS 0.698
Then patterns cover at least 99% of the test FS size in the guest's memory 15.308 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 4.123
Then I find very few patterns in the guest's memory after 3 seconds 33.605 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.025
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.820
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 8.537
And I prepare Tails for memory erasure tests 0.457
When I fill a 128 MiB file with a known pattern on the root filesystem 12.791
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.228
Then patterns cover at least 128 MiB in the guest's memory 11.197 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 23.591 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.966
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:10.824
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:38.083
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.761
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.580 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 3.826
After features/support/hooks.rb:100 0.014