Project Number Date
test_Tails_ISO_stable 5927 03 Nov 2025, 13:25

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 12:20.409 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
37.827
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 8.962
And I prepare Tails for memory erasure tests 0.414
When I start a process allocating 128 MiB of memory with a known pattern 2.289
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 10.640 
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 15.279 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 1.054
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
47.881
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 8.659
And I prepare Tails for memory erasure tests 0.549
And I find very few patterns in the guest's memory 9.532 
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 1.548
Then patterns cover at least 99% of the test FS size in the guest's memory 12.985 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.448
Then I find very few patterns in the guest's memory after 3 seconds 14.157 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.345
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:24.135
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 9.181
And I prepare Tails for memory erasure tests 0.445
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.707
Then I find very few patterns in the guest's memory 9.298 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.786
Then patterns cover at least 75% of the test FS size in the guest's memory 12.402 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.041
Then I find very few patterns in the guest's memory after 3 seconds 14.730 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
# read cache
When I mount the USB drive again 0.232
And I read the content of the test FS 1.127
Then patterns cover at least 99% of the test FS size in the guest's memory 12.740 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.461
Then I find very few patterns in the guest's memory after 3 seconds 12.978 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 0.985
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.904
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 8.777
And I prepare Tails for memory erasure tests 0.452
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.818
Then I find very few patterns in the guest's memory 9.376 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.647
Then patterns cover at least 99% of the test FS size in the guest's memory 9.717 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.854
Then I find very few patterns in the guest's memory after 3 seconds 13.181 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
# read cache
When I mount the USB drive again 5.018
And I read the content of the test FS 0.690
Then patterns cover at least 99% of the test FS size in the guest's memory 10.124 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.621
Then I find very few patterns in the guest's memory after 3 seconds 12.622 
Pattern coverage: 0.000% (0 MiB out of 1499 MiB reference memory)
After features/support/hooks.rb:331 1.065
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
51.707
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 8.685
And I prepare Tails for memory erasure tests 0.591
When I fill a 128 MiB file with a known pattern on the root filesystem 10.337
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.804
Then patterns cover at least 128 MiB in the guest's memory 7.005 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 22.269 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.530
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:54.952
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 6:21.845
And I prepare Tails for memory erasure tests 0.473
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.882
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 23.735 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 3.751
After features/support/hooks.rb:100 0.014