Project Number Date
test_Tails_ISO_devel 4257 27 Feb 2026, 09:06

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 13:9.321 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
47.885
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 8.358
And I prepare Tails for memory erasure tests 0.416
When I start a process allocating 128 MiB of memory with a known pattern 2.269
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.492 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.283
Then I find very few patterns in the guest's memory after 5 seconds 20.064 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.067
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.920
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 8.369
And I prepare Tails for memory erasure tests 0.394
And I find very few patterns in the guest's memory 14.198 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.785
Then patterns cover at least 99% of the test FS size in the guest's memory 15.877 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.295
Then I find very few patterns in the guest's memory after 3 seconds 16.999 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.112
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:40.522
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 8.168
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.454
Then I find very few patterns in the guest's memory 14.934 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.346
Then patterns cover at least 75% of the test FS size in the guest's memory 15.844 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.453
Then I find very few patterns in the guest's memory after 3 seconds 16.833 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.694
Then patterns cover at least 99% of the test FS size in the guest's memory 15.224 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.320
Then I find very few patterns in the guest's memory after 3 seconds 16.679 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 1.035
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:58.965
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 8.397
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.801
Then I find very few patterns in the guest's memory 12.965 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.018
Then patterns cover at least 99% of the test FS size in the guest's memory 13.944 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.790
Then I find very few patterns in the guest's memory after 3 seconds 15.889 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 4.495
And I read the content of the test FS 0.455
Then patterns cover at least 99% of the test FS size in the guest's memory 13.508 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.596
Then I find very few patterns in the guest's memory after 3 seconds 15.595 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 1.283
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.948
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 8.228
And I prepare Tails for memory erasure tests 0.475
When I fill a 128 MiB file with a known pattern on the root filesystem 12.237
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.152
Then patterns cover at least 128 MiB in the guest's memory 9.995 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.847 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 3.816
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:46.079
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 6:12.365
And I prepare Tails for memory erasure tests 0.564
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.625
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 23.508 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 3.603
After features/support/hooks.rb:100 0.012