Project Number Date
test_Tails_ISO_stable 5938 08 Nov 2025, 12:05

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 13:43.291 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
46.506
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 9.025
And I prepare Tails for memory erasure tests 0.409
When I start a process allocating 128 MiB of memory with a known pattern 2.237
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.520 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.269
Then I find very few patterns in the guest's memory after 5 seconds 19.044 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.005
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.055
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 8.665
And I prepare Tails for memory erasure tests 0.387
And I find very few patterns in the guest's memory 14.188 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.695
Then patterns cover at least 99% of the test FS size in the guest's memory 15.028 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.467
Then I find very few patterns in the guest's memory after 3 seconds 16.621 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.973
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:48.148
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 8.436
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.846
Then I find very few patterns in the guest's memory 16.664 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.955
Then patterns cover at least 75% of the test FS size in the guest's memory 18.560 
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 19.403 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# read cache
When I mount the USB drive again 0.203
And I read the content of the test FS 0.763
Then patterns cover at least 99% of the test FS size in the guest's memory 15.016 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.440
Then I find very few patterns in the guest's memory after 3 seconds 17.540 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.860
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:22.100
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 8.959
And I prepare Tails for memory erasure tests 0.551
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.699
Then I find very few patterns in the guest's memory 31.664 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.054
Then patterns cover at least 99% of the test FS size in the guest's memory 13.709 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 17.186 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# read cache
When I mount the USB drive again 4.423
And I read the content of the test FS 0.466
Then patterns cover at least 99% of the test FS size in the guest's memory 14.399 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.654
Then I find very few patterns in the guest's memory after 3 seconds 15.594 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 1.219
After features/support/hooks.rb:100 0.011
Tags: @product @slow @not_release_blocker
55.580
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.022
Given I have started Tails from DVD without network and logged in 8.870
And I prepare Tails for memory erasure tests 0.428
When I fill a 128 MiB file with a known pattern on the root filesystem 10.280
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.073
Then patterns cover at least 128 MiB in the guest's memory 10.096 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 22.821 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 3.722
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:53.899
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 6:20.798
And I prepare Tails for memory erasure tests 0.618
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.998
When I trigger shutdown 0.041
Then I find very few patterns in the guest's memory after 20 seconds 23.442 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:331 5.082
After features/support/hooks.rb:100 0.015