Project Number Date
test_Tails_ISO_devel 4328 08 Apr 2026, 11:26

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 8:7.399 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
18.277
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 7.147
And I prepare Tails for memory erasure tests 0.442
When I start a process allocating 128 MiB of memory with a known pattern 1.242
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.043 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.693
Then I find very few patterns in the guest's memory after 5 seconds 6.707 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.406
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.175
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 7.264
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 1.775 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.526
Then patterns cover at least 99% of the test FS size in the guest's memory 1.984 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.428
Then I find very few patterns in the guest's memory after 3 seconds 4.835 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 0.765
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.984
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 7.056
And I prepare Tails for memory erasure tests 0.442
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.421
Then I find very few patterns in the guest's memory 1.754 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.217
Then patterns cover at least 75% of the test FS size in the guest's memory 2.068 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.129
Then I find very few patterns in the guest's memory after 3 seconds 4.763 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
# read cache
When I mount the USB drive again 0.193
And I read the content of the test FS 0.509
Then patterns cover at least 99% of the test FS size in the guest's memory 2.041 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.549
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.213
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:27.531
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 6.861
And I prepare Tails for memory erasure tests 0.494
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.859
Then I find very few patterns in the guest's memory 1.624 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.914
Then patterns cover at least 99% of the test FS size in the guest's memory 1.901 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.741
Then I find very few patterns in the guest's memory after 3 seconds 4.624 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 29.144
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.759 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.586
Then I find very few patterns in the guest's memory after 3 seconds 4.720 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.072
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.356
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 6.933
And I prepare Tails for memory erasure tests 0.422
When I fill a 128 MiB file with a known pattern on the root filesystem 13.543
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 18.183
Then patterns cover at least 128 MiB in the guest's memory 1.706 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.560 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.352
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:29.073
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.012
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:56.898
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.867
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.929 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 3.863
After features/support/hooks.rb:100 0.008