Project Number Date
test_Tails_ISO_devel 4209 04 Feb 2026, 13:00

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 14:3.097 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
52.725
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 8.449
And I prepare Tails for memory erasure tests 0.348
When I start a process allocating 128 MiB of memory with a known pattern 2.232
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 18.502 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.216
Then I find very few patterns in the guest's memory after 5 seconds 22.976 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.738
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.271
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 8.227
And I prepare Tails for memory erasure tests 0.480
And I find very few patterns in the guest's memory 14.605 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.344
Then patterns cover at least 99% of the test FS size in the guest's memory 15.690 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.411
Then I find very few patterns in the guest's memory after 3 seconds 17.510 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 1.163
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:46.291
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 8.603
And I prepare Tails for memory erasure tests 0.349
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.499
Then I find very few patterns in the guest's memory 14.650 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.641
Then patterns cover at least 75% of the test FS size in the guest's memory 16.575 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.949
Then I find very few patterns in the guest's memory after 3 seconds 19.628 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# read cache
When I mount the USB drive again 0.197
And I read the content of the test FS 0.600
Then patterns cover at least 99% of the test FS size in the guest's memory 15.449 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.338
Then I find very few patterns in the guest's memory after 3 seconds 17.808 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 0.771
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:5.883
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 8.885
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.482
Then I find very few patterns in the guest's memory 12.920 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.602
Then patterns cover at least 99% of the test FS size in the guest's memory 14.066 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.655
Then I find very few patterns in the guest's memory after 3 seconds 15.756 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# read cache
When I mount the USB drive again 4.235
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 13.977 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.653
Then I find very few patterns in the guest's memory after 3 seconds 22.802 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 1.104
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.992
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 8.775
And I prepare Tails for memory erasure tests 0.466
When I fill a 128 MiB file with a known pattern on the root filesystem 12.097
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.164
Then patterns cover at least 128 MiB in the guest's memory 10.233 
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 23.242 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 3.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:19.933
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 6:42.178
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.576
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 26.740 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.482
After features/support/hooks.rb:100 0.014