Project Number Date
test_Tails_ISO_stable 5966 24 Nov 2025, 12:43

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 15:46.946 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
50.152
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 11.024
And I prepare Tails for memory erasure tests 0.569
When I start a process allocating 128 MiB of memory with a known pattern 2.361
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.833 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.243
Then I find very few patterns in the guest's memory after 5 seconds 19.119 
Pattern coverage: 0.000% (0 MiB out of 1540 MiB reference memory)
After features/support/hooks.rb:331 0.703
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.016
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 8.541
And I prepare Tails for memory erasure tests 0.409
And I find very few patterns in the guest's memory 14.590 
Pattern coverage: 0.000% (0 MiB out of 1545 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.781
Then patterns cover at least 99% of the test FS size in the guest's memory 15.071 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.416
Then I find very few patterns in the guest's memory after 3 seconds 17.205 
Pattern coverage: 0.000% (0 MiB out of 1545 MiB reference memory)
After features/support/hooks.rb:331 0.923
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:53.698
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 8.814
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.697
Then I find very few patterns in the guest's memory 17.481 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.970
Then patterns cover at least 75% of the test FS size in the guest's memory 33.934 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.954
Then I find very few patterns in the guest's memory after 3 seconds 34.418 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
# read cache
When I mount the USB drive again 0.240
And I read the content of the test FS 1.118
Then patterns cover at least 99% of the test FS size in the guest's memory 34.014 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 31.166 
Pattern coverage: 0.000% (0 MiB out of 1544 MiB reference memory)
After features/support/hooks.rb:331 0.942
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:19.023
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 8.826
And I prepare Tails for memory erasure tests 0.463
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.318
Then I find very few patterns in the guest's memory 13.508 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.911
Then patterns cover at least 99% of the test FS size in the guest's memory 14.080 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.631
Then I find very few patterns in the guest's memory after 3 seconds 31.473 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# read cache
When I mount the USB drive again 4.308
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 14.081 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.582
Then I find very few patterns in the guest's memory after 3 seconds 15.381 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 1.009
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.281
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 10.185
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the root filesystem 10.780
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.148
Then patterns cover at least 128 MiB in the guest's memory 9.860 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.863 
Pattern coverage: 0.000% (0 MiB out of 1542 MiB reference memory)
After features/support/hooks.rb:331 3.983
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:48.774
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 7:14.602
And I prepare Tails for memory erasure tests 0.382
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.159
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 24.621 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.529
After features/support/hooks.rb:100 0.019