Project Number Date
test_Tails_ISO_devel 4205 03 Feb 2026, 08:55

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 11:58.643 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
42.004
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 7.300
And I prepare Tails for memory erasure tests 0.362
When I start a process allocating 128 MiB of memory with a known pattern 0.109
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.109 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.122
Then I find very few patterns in the guest's memory after 5 seconds 19.000 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.776
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.939
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 7.545
And I prepare Tails for memory erasure tests 0.356
And I find very few patterns in the guest's memory 23.329 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.581
Then patterns cover at least 99% of the test FS size in the guest's memory 21.863 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.080
Then I find very few patterns in the guest's memory after 3 seconds 17.182 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.930
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:35.856
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 7.256
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.665
Then I find very few patterns in the guest's memory 14.101 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.136
Then patterns cover at least 75% of the test FS size in the guest's memory 15.723 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.207
Then I find very few patterns in the guest's memory after 3 seconds 17.067 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.492
Then patterns cover at least 99% of the test FS size in the guest's memory 15.453 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.124
Then I find very few patterns in the guest's memory after 3 seconds 17.125 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.073
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:54.723
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 7.294
And I prepare Tails for memory erasure tests 0.319
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.484
Then I find very few patterns in the guest's memory 12.829 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.264
Then patterns cover at least 99% of the test FS size in the guest's memory 14.352 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.394
Then I find very few patterns in the guest's memory after 3 seconds 15.791 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 2.423
And I read the content of the test FS 0.303
Then patterns cover at least 99% of the test FS size in the guest's memory 14.065 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.291
Then I find very few patterns in the guest's memory after 3 seconds 16.908 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.726
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.350
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 7.377
And I prepare Tails for memory erasure tests 0.367
When I fill a 128 MiB file with a known pattern on the root filesystem 9.211
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.333
Then patterns cover at least 128 MiB in the guest's memory 9.377 
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 22.673 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.840
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:45.768
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 5:13.487
And I prepare Tails for memory erasure tests 0.378
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.826
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.066 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.677
After features/support/hooks.rb:100 0.013