Project Number Date
test_Tails_ISO_stable 5928 03 Nov 2025, 15:52

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 15:39.900 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
45.572
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 8.833
And I prepare Tails for memory erasure tests 0.397
When I start a process allocating 128 MiB of memory with a known pattern 2.257
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.801 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.251
Then I find very few patterns in the guest's memory after 5 seconds 19.031 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 0.816
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.818
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 8.457
And I prepare Tails for memory erasure tests 0.444
And I find very few patterns in the guest's memory 14.233 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.546
Then patterns cover at least 99% of the test FS size in the guest's memory 14.909 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.423
Then I find very few patterns in the guest's memory after 3 seconds 16.803 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.134
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.302
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 8.662
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.703
Then I find very few patterns in the guest's memory 14.393 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.495
Then patterns cover at least 75% of the test FS size in the guest's memory 16.638 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.957
Then I find very few patterns in the guest's memory after 3 seconds 17.154 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.649
Then patterns cover at least 99% of the test FS size in the guest's memory 15.376 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 17.116 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 0.835
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:3.808
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 8.455
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.621
Then I find very few patterns in the guest's memory 13.146 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.340
Then patterns cover at least 99% of the test FS size in the guest's memory 14.523 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.748
Then I find very few patterns in the guest's memory after 3 seconds 15.792 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
# read cache
When I mount the USB drive again 4.528
And I read the content of the test FS 0.539
Then patterns cover at least 99% of the test FS size in the guest's memory 13.692 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.578
Then I find very few patterns in the guest's memory after 3 seconds 16.430 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 0.632
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:4.407
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 8.640
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the root filesystem 10.163
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.531
Then patterns cover at least 128 MiB in the guest's memory 19.884 
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 22.739 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.938
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
9:7.990
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 8:34.123
And I prepare Tails for memory erasure tests 0.316
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.196
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.343 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:331 3.904
After features/support/hooks.rb:100 0.012