Project Number Date
test_Tails_ISO_stable 6215 18 Mar 2026, 11:03

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 7:3.291 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
18.304
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 6.620
And I prepare Tails for memory erasure tests 0.377
When I start a process allocating 128 MiB of memory with a known pattern 2.238
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.034 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.224
Then I find very few patterns in the guest's memory after 5 seconds 6.808 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.929
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.350
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.721
And I prepare Tails for memory erasure tests 0.390
And I find very few patterns in the guest's memory 1.874 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.327
Then patterns cover at least 99% of the test FS size in the guest's memory 2.341 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.767
Then I find very few patterns in the guest's memory after 3 seconds 4.926 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 1.129
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.440
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 6.711
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.442
Then I find very few patterns in the guest's memory 1.898 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.717
Then patterns cover at least 75% of the test FS size in the guest's memory 1.976 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.980
Then I find very few patterns in the guest's memory after 3 seconds 4.783 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 0.160
And I read the content of the test FS 0.413
Then patterns cover at least 99% of the test FS size in the guest's memory 1.965 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.275
Then I find very few patterns in the guest's memory after 3 seconds 4.671 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.452
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.525
And I prepare Tails for memory erasure tests 0.304
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.257
Then I find very few patterns in the guest's memory 1.568 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.190
Then patterns cover at least 99% of the test FS size in the guest's memory 1.818 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 4.637 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 3.738
And I read the content of the test FS 0.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.694 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.556 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.840
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.654
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.574
And I prepare Tails for memory erasure tests 0.351
When I fill a 128 MiB file with a known pattern on the root filesystem 12.781
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.937
Then patterns cover at least 128 MiB in the guest's memory 1.419 
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 20.566 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.368
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:15.089
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 3:43.619
And I prepare Tails for memory erasure tests 0.325
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.196
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.941 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.723
After features/support/hooks.rb:100 0.008