Project Number Date
test_Tails_ISO_stable 5936 07 Nov 2025, 12:08

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 14:45.827 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
46.442
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 9.016
And I prepare Tails for memory erasure tests 0.444
When I start a process allocating 128 MiB of memory with a known pattern 2.245
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.558 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.213
Then I find very few patterns in the guest's memory after 5 seconds 18.963 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 0.964
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.412
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 8.652
And I prepare Tails for memory erasure tests 0.409
And I find very few patterns in the guest's memory 14.148 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.676
Then patterns cover at least 99% of the test FS size in the guest's memory 15.328 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.433
Then I find very few patterns in the guest's memory after 3 seconds 17.764 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 1.027
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:56.491
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 8.513
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.614
Then I find very few patterns in the guest's memory 25.142 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.794
Then patterns cover at least 75% of the test FS size in the guest's memory 43.054 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.012
Then I find very few patterns in the guest's memory after 3 seconds 42.862 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# read cache
When I mount the USB drive again 0.252
And I read the content of the test FS 1.072
Then patterns cover at least 99% of the test FS size in the guest's memory 27.042 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.483
Then I find very few patterns in the guest's memory after 3 seconds 17.277 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 1.004
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:7.185
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 8.590
And I prepare Tails for memory erasure tests 0.384
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.372
Then I find very few patterns in the guest's memory 13.997 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.782
Then patterns cover at least 99% of the test FS size in the guest's memory 14.177 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.667
Then I find very few patterns in the guest's memory after 3 seconds 16.010 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 4.552
And I read the content of the test FS 0.438
Then patterns cover at least 99% of the test FS size in the guest's memory 13.670 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 15.962 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.774
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.510
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 8.427
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 12.114
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.519
Then patterns cover at least 128 MiB in the guest's memory 10.063 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 22.969 
Pattern coverage: 0.000% (0 MiB out of 1518 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
7:0.785
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 6:27.331
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.455
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.579 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.784
After features/support/hooks.rb:100 0.017