Project Number Date
test_Tails_ISO_devel 4127 18 Dec 2025, 08:38

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 13:40.167 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
44.897
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 8.086
And I prepare Tails for memory erasure tests 0.404
When I start a process allocating 128 MiB of memory with a known pattern 1.162
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.986 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 20.074 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.903
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.048
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 8.011
And I prepare Tails for memory erasure tests 0.372
And I find very few patterns in the guest's memory 14.311 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.595
Then patterns cover at least 99% of the test FS size in the guest's memory 16.408 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.101
Then I find very few patterns in the guest's memory after 3 seconds 19.247 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 2.967
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:41.892
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 8.592
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.061
Then I find very few patterns in the guest's memory 14.455 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.009
Then patterns cover at least 75% of the test FS size in the guest's memory 39.217 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.226
Then I find very few patterns in the guest's memory after 3 seconds 36.156 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.161
And I read the content of the test FS 0.516
Then patterns cover at least 99% of the test FS size in the guest's memory 32.554 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.220
Then I find very few patterns in the guest's memory after 3 seconds 21.335 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.663
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:10.929
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 7.815
And I prepare Tails for memory erasure tests 0.393
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.839
Then I find very few patterns in the guest's memory 14.502 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.375
Then patterns cover at least 99% of the test FS size in the guest's memory 14.265 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.390
Then I find very few patterns in the guest's memory after 3 seconds 16.160 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 2.212
And I read the content of the test FS 0.538
Then patterns cover at least 99% of the test FS size in the guest's memory 22.700 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.333
Then I find very few patterns in the guest's memory after 3 seconds 18.400 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.953
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.037
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 7.986
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the root filesystem 9.194
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.296
Then patterns cover at least 128 MiB in the guest's memory 25.040 
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 24.118 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.753
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:56.361
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:23.983
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.906
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 23.090 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 3.894
After features/support/hooks.rb:100 0.015