Project Number Date
test_Tails_ISO_devel 4095 01 Dec 2025, 16:11

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 14:44.823 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
47.911
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.014
Given I have started Tails from DVD without network and logged in 10.005
And I prepare Tails for memory erasure tests 0.447
When I start a process allocating 128 MiB of memory with a known pattern 2.319
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.482 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.956
Then I find very few patterns in the guest's memory after 5 seconds 18.700 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 0.870
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.218
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 8.532
And I prepare Tails for memory erasure tests 0.417
And I find very few patterns in the guest's memory 15.726 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.768
Then patterns cover at least 99% of the test FS size in the guest's memory 15.357 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.418
Then I find very few patterns in the guest's memory after 3 seconds 16.996 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 0.778
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:47.726
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails from DVD without network and logged in 8.664
And I prepare Tails for memory erasure tests 0.472
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.114
Then I find very few patterns in the guest's memory 15.147 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.014
Then patterns cover at least 75% of the test FS size in the guest's memory 18.155 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.016
Then I find very few patterns in the guest's memory after 3 seconds 18.138 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# read cache
When I mount the USB drive again 0.234
And I read the content of the test FS 0.726
Then patterns cover at least 99% of the test FS size in the guest's memory 15.710 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.490
Then I find very few patterns in the guest's memory after 3 seconds 17.841 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 0.837
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:53.179
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 10.394
And I prepare Tails for memory erasure tests 0.468
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.964
Then I find very few patterns in the guest's memory 14.981 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.543
Then patterns cover at least 99% of the test FS size in the guest's memory 14.426 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory after 3 seconds 25.669 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# read cache
When I mount the USB drive again 4.951
And I read the content of the test FS 0.499
Then patterns cover at least 99% of the test FS size in the guest's memory 30.902 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.761
Then I find very few patterns in the guest's memory after 3 seconds 35.997 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 1.102
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.420
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 9.179
And I prepare Tails for memory erasure tests 0.597
When I fill a 128 MiB file with a known pattern on the root filesystem 11.362
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.654
Then patterns cover at least 128 MiB in the guest's memory 19.704 
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 22.905 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.952
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:10.367
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 6:36.661
And I prepare Tails for memory erasure tests 0.740
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.331
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.620 
Pattern coverage: 0.000% (0 MiB out of 1526 MiB reference memory)
After features/support/hooks.rb:331 3.833
After features/support/hooks.rb:100 0.014