Project Number Date
test_Tails_ISO_devel 4592 03 Sep 2026, 17:50

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 7:52.928 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
20.767
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.642
And I prepare Tails for memory erasure tests 0.365
When I start a process allocating 128 MiB of memory with a known pattern 2.206
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.900 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.749
Then I find very few patterns in the guest's memory after 5 seconds 7.902 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 1.004
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.603
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.583
And I prepare Tails for memory erasure tests 0.351
And I find very few patterns in the guest's memory 2.583 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.657
Then patterns cover at least 99% of the test FS size in the guest's memory 3.091 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.502
Then I find very few patterns in the guest's memory after 3 seconds 5.832 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 0.641
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
39.010
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.568
And I prepare Tails for memory erasure tests 0.372
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.608
Then I find very few patterns in the guest's memory 3.490 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.033
Then patterns cover at least 75% of the test FS size in the guest's memory 3.344 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.801
Then I find very few patterns in the guest's memory after 3 seconds 5.712 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 0.207
And I read the content of the test FS 0.616
Then patterns cover at least 99% of the test FS size in the guest's memory 3.190 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.621 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.818
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.550
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.496
And I prepare Tails for memory erasure tests 0.329
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.275
Then I find very few patterns in the guest's memory 2.808 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.502
Then patterns cover at least 99% of the test FS size in the guest's memory 2.902 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 5.720 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 4.031
And I read the content of the test FS 0.562
Then patterns cover at least 99% of the test FS size in the guest's memory 3.289 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 5.660 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.875
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.040
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.475
And I prepare Tails for memory erasure tests 0.357
When I fill a 128 MiB file with a known pattern on the root filesystem 11.950
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.349
Then patterns cover at least 128 MiB in the guest's memory 2.152 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.750 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 3.519
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:44.955
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:13.313
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.163
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.135 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:339 3.808
After features/support/hooks.rb:108 0.010