Project Number Date
test_Tails_ISO_stable 6265 05 Apr 2026, 11:29

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 7:51.145 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
19.154
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 6.964
And I prepare Tails for memory erasure tests 0.606
When I start a process allocating 128 MiB of memory with a known pattern 2.546
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.919 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.233
Then I find very few patterns in the guest's memory after 5 seconds 6.885 
Pattern coverage: 0.000% (0 MiB out of 1531 MiB reference memory)
After features/support/hooks.rb:331 0.830
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.010
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 6.950
And I prepare Tails for memory erasure tests 0.408
And I find very few patterns in the guest's memory 1.969 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.392
Then patterns cover at least 99% of the test FS size in the guest's memory 2.008 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.376
Then I find very few patterns in the guest's memory after 3 seconds 4.904 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 1.116
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.428
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.008
Given I have started Tails from DVD without network and logged in 7.122
And I prepare Tails for memory erasure tests 0.451
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.398
Then I find very few patterns in the guest's memory 1.795 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.449
Then patterns cover at least 75% of the test FS size in the guest's memory 2.122 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.093
Then I find very few patterns in the guest's memory after 3 seconds 5.009 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
# read cache
When I mount the USB drive again 0.200
And I read the content of the test FS 0.443
Then patterns cover at least 99% of the test FS size in the guest's memory 2.124 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.511
Then I find very few patterns in the guest's memory after 3 seconds 4.707 
Pattern coverage: 0.000% (0 MiB out of 1541 MiB reference memory)
After features/support/hooks.rb:331 0.878
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.915
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 7.096
And I prepare Tails for memory erasure tests 0.568
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.131
Then I find very few patterns in the guest's memory 2.150 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.682
Then patterns cover at least 99% of the test FS size in the guest's memory 2.065 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.588
Then I find very few patterns in the guest's memory after 3 seconds 4.754 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
# read cache
When I mount the USB drive again 4.997
And I read the content of the test FS 0.285
Then patterns cover at least 99% of the test FS size in the guest's memory 1.990 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.682
Then I find very few patterns in the guest's memory after 3 seconds 4.921 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 1.104
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.640
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 6.971
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the root filesystem 13.794
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.334
Then patterns cover at least 128 MiB in the guest's memory 1.549 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.619 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 3.528
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:39.995
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 4:7.412
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.224
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.952 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.903
After features/support/hooks.rb:100 0.025