Project Number Date
test_Tails_ISO_stable 6004 12 Dec 2025, 12:40

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 17:53.084 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
44.738
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 8.330
And I prepare Tails for memory erasure tests 0.465
When I start a process allocating 128 MiB of memory with a known pattern 1.169
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.046 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.141
Then I find very few patterns in the guest's memory after 5 seconds 19.584 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 0.671
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.924
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 8.273
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 14.315 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.713
Then patterns cover at least 99% of the test FS size in the guest's memory 14.847 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.089
Then I find very few patterns in the guest's memory after 3 seconds 20.277 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:331 1.317
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:41.444
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 9.111
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.119
Then I find very few patterns in the guest's memory 18.098 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.315
Then patterns cover at least 75% of the test FS size in the guest's memory 16.758 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.277
Then I find very few patterns in the guest's memory after 3 seconds 19.469 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
# read cache
When I mount the USB drive again 0.270
And I read the content of the test FS 0.830
Then patterns cover at least 99% of the test FS size in the guest's memory 41.582 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.263
Then I find very few patterns in the guest's memory after 3 seconds 45.914 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 2.645
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:49.858
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 8.632
And I prepare Tails for memory erasure tests 0.406
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 42.698
Then I find very few patterns in the guest's memory 15.196 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 5.392
Then patterns cover at least 99% of the test FS size in the guest's memory 30.617 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 3.024
Then I find very few patterns in the guest's memory after 3 seconds 21.072 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
# read cache
When I mount the USB drive again 4.578
And I read the content of the test FS 3.997
Then patterns cover at least 99% of the test FS size in the guest's memory 14.980 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.321
Then I find very few patterns in the guest's memory after 3 seconds 18.938 
Pattern coverage: 0.000% (0 MiB out of 1522 MiB reference memory)
After features/support/hooks.rb:331 0.845
After features/support/hooks.rb:100 0.004
Tags: @product @slow @not_release_blocker
58.553
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 8.209
And I prepare Tails for memory erasure tests 0.411
When I fill a 128 MiB file with a known pattern on the root filesystem 10.149
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.330
Then patterns cover at least 128 MiB in the guest's memory 11.200 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.023
Then I find very few patterns in the guest's memory after 20 seconds 28.229 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 3.768
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
9:39.565
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 9:4.637
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.388
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.134 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.845
After features/support/hooks.rb:100 0.017