Project Number Date
test_Tails_ISO_stable 6197 12 Mar 2026, 14:37

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 7:41.805 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
19.363
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 7.214
And I prepare Tails for memory erasure tests 0.430
When I start a process allocating 128 MiB of memory with a known pattern 2.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.278 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.174
Then I find very few patterns in the guest's memory after 5 seconds 7.039 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.005
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.318
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 7.243
And I prepare Tails for memory erasure tests 0.401
And I find very few patterns in the guest's memory 2.233 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.378
Then patterns cover at least 99% of the test FS size in the guest's memory 2.400 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.751
Then I find very few patterns in the guest's memory after 3 seconds 4.909 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.020
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.191
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 7.674
And I prepare Tails for memory erasure tests 0.508
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.443
Then I find very few patterns in the guest's memory 1.930 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.448
Then patterns cover at least 75% of the test FS size in the guest's memory 2.123 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.996
Then I find very few patterns in the guest's memory after 3 seconds 4.944 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.212
And I read the content of the test FS 0.485
Then patterns cover at least 99% of the test FS size in the guest's memory 2.146 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.306
Then I find very few patterns in the guest's memory after 3 seconds 4.969 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.625
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.879
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 7.173
And I prepare Tails for memory erasure tests 0.566
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.335
Then I find very few patterns in the guest's memory 1.836 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.038
Then patterns cover at least 99% of the test FS size in the guest's memory 1.750 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 4.650 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 4.324
And I read the content of the test FS 0.310
Then patterns cover at least 99% of the test FS size in the guest's memory 2.045 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.955 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.109
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.703
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 7.194
And I prepare Tails for memory erasure tests 0.497
When I fill a 128 MiB file with a known pattern on the root filesystem 12.896
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.815
Then patterns cover at least 128 MiB in the guest's memory 1.716 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.578 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.877
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:44.349
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:11.635
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.287
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.065 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.508
After features/support/hooks.rb:100 0.032