Project Number Date
test_Tails_ISO_devel 4244 21 Feb 2026, 12:02

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 13:2.027 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
46.805
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 8.374
And I prepare Tails for memory erasure tests 0.394
When I start a process allocating 128 MiB of memory with a known pattern 2.267
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.825 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 19.735 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 1.059
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.242
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 8.269
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 20.867 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.467
Then patterns cover at least 99% of the test FS size in the guest's memory 15.417 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.141
Then I find very few patterns in the guest's memory after 3 seconds 17.672 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.188
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.952
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 8.134
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.595
Then I find very few patterns in the guest's memory 14.799 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.386
Then patterns cover at least 75% of the test FS size in the guest's memory 16.308 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.331
Then I find very few patterns in the guest's memory after 3 seconds 17.208 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.622
Then patterns cover at least 99% of the test FS size in the guest's memory 15.383 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.345
Then I find very few patterns in the guest's memory after 3 seconds 17.263 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.990
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:59.344
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 8.364
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.860
Then I find very few patterns in the guest's memory 12.767 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.635
Then patterns cover at least 99% of the test FS size in the guest's memory 14.508 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.638
Then I find very few patterns in the guest's memory after 3 seconds 15.808 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# read cache
When I mount the USB drive again 4.643
And I read the content of the test FS 0.535
Then patterns cover at least 99% of the test FS size in the guest's memory 13.206 
Pattern coverage: 106.115% (97 MiB out of 91 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 15.582 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.100
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.932
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 8.310
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the root filesystem 11.474
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.107
Then patterns cover at least 128 MiB in the guest's memory 9.829 
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 22.784 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:331 3.724
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:32.750
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 5:52.352
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.047
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 30.888 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 3.772
After features/support/hooks.rb:100 0.014