Project Number Date
test_Tails_ISO_stable 6315 21 Apr 2026, 13:17

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 7:24.019 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
19.159
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 6.699
And I prepare Tails for memory erasure tests 0.489
When I start a process allocating 128 MiB of memory with a known pattern 2.293
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.936 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.747
Then I find very few patterns in the guest's memory after 5 seconds 6.992 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.686
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.782
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 6.818
And I prepare Tails for memory erasure tests 0.458
And I find very few patterns in the guest's memory 1.935 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.444
Then patterns cover at least 99% of the test FS size in the guest's memory 1.972 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.327
Then I find very few patterns in the guest's memory after 3 seconds 4.825 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 1.054
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.338
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 6.713
And I prepare Tails for memory erasure tests 0.523
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.428
Then I find very few patterns in the guest's memory 1.891 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.210
Then patterns cover at least 75% of the test FS size in the guest's memory 2.070 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.858
Then I find very few patterns in the guest's memory after 3 seconds 4.852 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.209
And I read the content of the test FS 0.510
Then patterns cover at least 99% of the test FS size in the guest's memory 2.912 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.346
Then I find very few patterns in the guest's memory after 3 seconds 4.811 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.037
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.814
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 6.696
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.946
Then I find very few patterns in the guest's memory 1.720 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.177
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 4.777 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 4.014
And I read the content of the test FS 0.305
Then patterns cover at least 99% of the test FS size in the guest's memory 1.959 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.520
Then I find very few patterns in the guest's memory after 3 seconds 4.722 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 1.034
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.816
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 6.824
And I prepare Tails for memory erasure tests 0.528
When I fill a 128 MiB file with a known pattern on the root filesystem 13.336
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.918
Then patterns cover at least 128 MiB in the guest's memory 1.656 
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 20.544 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 3.801
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:30.107
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 3:58.427
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.226
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.999 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.614
After features/support/hooks.rb:100 0.010