Project Number Date
test_Tails_ISO_devel 4080 20 Nov 2025, 14:43

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 16:30.833 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
59.364
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 8.561
And I prepare Tails for memory erasure tests 0.457
When I start a process allocating 128 MiB of memory with a known pattern 2.272
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 27.680 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.099
Then I find very few patterns in the guest's memory after 5 seconds 19.294 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 1.026
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.294
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 11.167
And I prepare Tails for memory erasure tests 0.447
And I find very few patterns in the guest's memory 13.973 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.057
Then patterns cover at least 99% of the test FS size in the guest's memory 20.460 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.510
Then I find very few patterns in the guest's memory after 3 seconds 21.678 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.654
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:14.319
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 8.742
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.844
Then I find very few patterns in the guest's memory 52.268 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.822
Then patterns cover at least 75% of the test FS size in the guest's memory 59.636 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.890
Then I find very few patterns in the guest's memory after 3 seconds 38.293 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# read cache
When I mount the USB drive again 0.222
And I read the content of the test FS 0.619
Then patterns cover at least 99% of the test FS size in the guest's memory 39.494 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.500
Then I find very few patterns in the guest's memory after 3 seconds 42.604 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.842
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:7.508
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 8.240
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.847
Then I find very few patterns in the guest's memory 16.397 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.922
Then patterns cover at least 99% of the test FS size in the guest's memory 13.621 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.690
Then I find very few patterns in the guest's memory after 3 seconds 15.890 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# read cache
When I mount the USB drive again 4.373
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 17.477 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.633
Then I find very few patterns in the guest's memory after 3 seconds 15.416 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 1.193
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.272
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 8.436
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the root filesystem 10.111
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.626
Then patterns cover at least 128 MiB in the guest's memory 9.891 
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 22.778 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 3.910
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:5.073
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 6:31.844
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.096
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 23.718 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
After features/support/hooks.rb:331 3.658
After features/support/hooks.rb:100 0.015