Project Number Date
test_Tails_ISO_stable 5937 07 Nov 2025, 20:07

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 13:19.355 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
45.274
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 8.552
And I prepare Tails for memory erasure tests 0.401
When I start a process allocating 128 MiB of memory with a known pattern 1.225
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.351 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.248
Then I find very few patterns in the guest's memory after 5 seconds 19.495 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 1.234
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.263
Before features/support/hooks.rb:266 0.002
Before features/support/hooks.rb:273 0.016
Given I have started Tails from DVD without network and logged in 9.104
And I prepare Tails for memory erasure tests 0.618
And I find very few patterns in the guest's memory 13.638 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.253
Then patterns cover at least 99% of the test FS size in the guest's memory 15.034 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.377
Then I find very few patterns in the guest's memory after 3 seconds 17.235 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 0.696
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.469
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.748
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.673
Then I find very few patterns in the guest's memory 14.654 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.821
Then patterns cover at least 75% of the test FS size in the guest's memory 16.044 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.028
Then I find very few patterns in the guest's memory after 3 seconds 18.260 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
# read cache
When I mount the USB drive again 0.257
And I read the content of the test FS 0.723
Then patterns cover at least 99% of the test FS size in the guest's memory 14.697 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 16.697 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 1.179
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:1.331
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 8.749
And I prepare Tails for memory erasure tests 0.433
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.554
Then I find very few patterns in the guest's memory 13.159 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.773
Then patterns cover at least 99% of the test FS size in the guest's memory 15.241 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 16.832 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
# read cache
When I mount the USB drive again 4.936
And I read the content of the test FS 0.472
Then patterns cover at least 99% of the test FS size in the guest's memory 14.478 
Pattern coverage: 106.115% (97 MiB out of 91 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 15.499 
Pattern coverage: 0.000% (0 MiB out of 1511 MiB reference memory)
After features/support/hooks.rb:331 0.683
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
55.584
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 8.966
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the root filesystem 10.003
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.324
Then patterns cover at least 128 MiB in the guest's memory 10.095 
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 22.775 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 3.663
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:57.432
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 6:23.049
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.643
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 24.298 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.689
After features/support/hooks.rb:100 0.036