Project Number Date
test_Tails_ISO_21618-remove-tcpdump 1 26 May 2026, 14:28

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 7:40.766 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
17.710
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.943
And I prepare Tails for memory erasure tests 0.387
When I start a process allocating 128 MiB of memory with a known pattern 1.151
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.013 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.215
Then I find very few patterns in the guest's memory after 5 seconds 6.998 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:335 1.121
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
18.131
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.843
And I prepare Tails for memory erasure tests 0.348
And I find very few patterns in the guest's memory 1.755 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.643
Then patterns cover at least 99% of the test FS size in the guest's memory 2.031 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.330
Then I find very few patterns in the guest's memory after 3 seconds 5.178 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:335 0.636
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
33.966
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 7.004
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.452
Then I find very few patterns in the guest's memory 1.972 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.816
Then patterns cover at least 75% of the test FS size in the guest's memory 2.526 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.783
Then I find very few patterns in the guest's memory after 3 seconds 4.904 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.420
Then patterns cover at least 99% of the test FS size in the guest's memory 2.112 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.394
Then I find very few patterns in the guest's memory after 3 seconds 4.936 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:335 0.852
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.752
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.915
And I prepare Tails for memory erasure tests 0.414
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.121
Then I find very few patterns in the guest's memory 1.717 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.479
Then patterns cover at least 99% of the test FS size in the guest's memory 2.050 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.577
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 4.426
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.838 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.379
Then I find very few patterns in the guest's memory after 3 seconds 4.817 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:335 1.228
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
58.841
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 7.335
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the root filesystem 26.998
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.055
Then patterns cover at least 128 MiB in the guest's memory 1.548 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.501 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:335 3.764
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:32.362
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:53.184
And I prepare Tails for memory erasure tests 0.365
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.880
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.925 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:335 3.455
After features/support/hooks.rb:104 0.009