Project Number Date
test_Tails_ISO_devel 4108 08 Dec 2025, 15:45

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 15:13.163 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
46.914
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 8.637
And I prepare Tails for memory erasure tests 1.085
When I start a process allocating 128 MiB of memory with a known pattern 2.325
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.392 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.204
Then I find very few patterns in the guest's memory after 5 seconds 19.268 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 1.037
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:8.464
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 9.853
And I prepare Tails for memory erasure tests 0.442
And I find very few patterns in the guest's memory 18.440 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.692
Then patterns cover at least 99% of the test FS size in the guest's memory 19.920 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.529
Then I find very few patterns in the guest's memory after 3 seconds 17.585 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 1.002
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:58.525
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 8.535
And I prepare Tails for memory erasure tests 0.642
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.241
Then I find very few patterns in the guest's memory 14.090 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.187
Then patterns cover at least 75% of the test FS size in the guest's memory 36.941 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.929
Then I find very few patterns in the guest's memory after 3 seconds 35.035 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
# read cache
When I mount the USB drive again 0.224
And I read the content of the test FS 0.747
Then patterns cover at least 99% of the test FS size in the guest's memory 34.390 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 36.126 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 1.087
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:21.916
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.951
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.898
Then I find very few patterns in the guest's memory 19.606 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.916
Then patterns cover at least 99% of the test FS size in the guest's memory 13.972 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.898
Then I find very few patterns in the guest's memory after 3 seconds 16.681 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
# read cache
When I mount the USB drive again 5.086
And I read the content of the test FS 0.783
Then patterns cover at least 99% of the test FS size in the guest's memory 22.429 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.497
Then I find very few patterns in the guest's memory after 3 seconds 15.733 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 1.207
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.059
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 8.714
And I prepare Tails for memory erasure tests 0.911
When I fill a 128 MiB file with a known pattern on the root filesystem 11.009
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.169
Then patterns cover at least 128 MiB in the guest's memory 10.707 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.534 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.707
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:59.283
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 6:23.005
And I prepare Tails for memory erasure tests 0.415
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.114
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 25.732 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.562
After features/support/hooks.rb:100 0.014