Project Number Date
test_Tails_ISO_devel 4145 01 Jan 2026, 11:49

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 14:14.328 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
1:5.216
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.023
Given I have started Tails from DVD without network and logged in 12.572
And I prepare Tails for memory erasure tests 0.377
When I start a process allocating 128 MiB of memory with a known pattern 1.143
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.986 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.145
Then I find very few patterns in the guest's memory after 5 seconds 35.991 
Pattern coverage: 0.000% (0 MiB out of 1530 MiB reference memory)
After features/support/hooks.rb:331 1.842
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:29.144
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 29.653
And I prepare Tails for memory erasure tests 0.348
And I find very few patterns in the guest's memory 40.070 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.548
Then patterns cover at least 99% of the test FS size in the guest's memory 40.201 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.154
Then I find very few patterns in the guest's memory after 3 seconds 38.167 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 0.946
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:53.326
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 8.607
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.548
Then I find very few patterns in the guest's memory 16.768 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.081
Then patterns cover at least 75% of the test FS size in the guest's memory 21.989 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.238
Then I find very few patterns in the guest's memory after 3 seconds 17.608 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
# read cache
When I mount the USB drive again 0.209
And I read the content of the test FS 0.531
Then patterns cover at least 99% of the test FS size in the guest's memory 15.655 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.142
Then I find very few patterns in the guest's memory after 3 seconds 23.577 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 0.661
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:55.394
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 7.881
And I prepare Tails for memory erasure tests 0.462
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.270
Then I find very few patterns in the guest's memory 15.564 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.345
Then patterns cover at least 99% of the test FS size in the guest's memory 13.816 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.385
Then I find very few patterns in the guest's memory after 3 seconds 16.107 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
# read cache
When I mount the USB drive again 2.181
And I read the content of the test FS 0.357
Then patterns cover at least 99% of the test FS size in the guest's memory 13.592 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.480
Then I find very few patterns in the guest's memory after 3 seconds 17.948 
Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
50.067
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 7.717
And I prepare Tails for memory erasure tests 0.373
When I fill a 128 MiB file with a known pattern on the root filesystem 9.150
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.349
Then patterns cover at least 128 MiB in the guest's memory 9.750 
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 22.716 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 3.618
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:1.178
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 5:28.997
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.715
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.074 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 3.992
After features/support/hooks.rb:100 0.013