Project Number Date
test_Tails_ISO_stable 5984 05 Dec 2025, 07:26

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 14:49.820 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
46.675
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.510
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 2.468
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.481 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.241
Then I find very few patterns in the guest's memory after 5 seconds 19.512 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.361
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 9.436
And I prepare Tails for memory erasure tests 0.487
And I find very few patterns in the guest's memory 15.616 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.892
Then patterns cover at least 99% of the test FS size in the guest's memory 16.425 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.475
Then I find very few patterns in the guest's memory after 3 seconds 17.027 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 1.595
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.015
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.034
Given I have started Tails from DVD without network and logged in 9.510
And I prepare Tails for memory erasure tests 0.451
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.388
Then I find very few patterns in the guest's memory 14.161 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.498
Then patterns cover at least 75% of the test FS size in the guest's memory 15.404 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.886
Then I find very few patterns in the guest's memory after 3 seconds 17.146 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# read cache
When I mount the USB drive again 0.210
And I read the content of the test FS 0.842
Then patterns cover at least 99% of the test FS size in the guest's memory 16.523 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.454
Then I find very few patterns in the guest's memory after 3 seconds 18.536 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 1.255
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:10.753
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 8.798
And I prepare Tails for memory erasure tests 0.413
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.494
Then I find very few patterns in the guest's memory 14.853 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.852
Then patterns cover at least 99% of the test FS size in the guest's memory 28.738 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.707
Then I find very few patterns in the guest's memory after 3 seconds 32.382 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# read cache
When I mount the USB drive again 4.353
And I read the content of the test FS 0.431
Then patterns cover at least 99% of the test FS size in the guest's memory 32.529 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.585
Then I find very few patterns in the guest's memory after 3 seconds 31.611 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 1.189
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.722
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 9.924
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the root filesystem 10.633
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.469
Then patterns cover at least 128 MiB in the guest's memory 23.350 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.889 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 3.746
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:57.293
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 6:21.409
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.955
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 26.528 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.586
After features/support/hooks.rb:100 0.014