Project Number Date
test_Tails_ISO_stable 5320 07 Dec 2024, 12:31

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 11:35.910 Passed
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.
23.435
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.824
And I prepare Tails for memory erasure tests 0.651
When I start a process allocating 128 MiB of memory with a known pattern 2.598
Then patterns cover at least 128 MiB in the guest's memory 4.240

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.346
Then I find very few patterns in the guest's memory after 3 seconds 6.775

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 0.855
After features/support/hooks.rb:100 0.000
28.771
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.271
And I prepare Tails for memory erasure tests 0.490
And I find very few patterns in the guest's memory 4.923

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.305
Then patterns cover at least 99% of the test FS size in the guest's memory 4.983

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.952
Then I find very few patterns in the guest's memory after 3 seconds 6.843

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 0.775
After features/support/hooks.rb:100 0.000
54.460
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.735
And I prepare Tails for memory erasure tests 0.802
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.109
Then I find very few patterns in the guest's memory 3.485

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.727
Then patterns cover at least 75% of the test FS size in the guest's memory 4.467

Pattern coverage: 88.165% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.670
Then I find very few patterns in the guest's memory after 3 seconds 6.360

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# read cache
When I mount the USB drive again 0.557
And I read the content of the test FS 1.171
Then patterns cover at least 99% of the test FS size in the guest's memory 3.708

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.985
Then I find very few patterns in the guest's memory after 3 seconds 6.678

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 0.835
After features/support/hooks.rb:100 0.000
1:21.544
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.320
And I prepare Tails for memory erasure tests 0.425
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.174
Then I find very few patterns in the guest's memory 3.320

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.213
Then patterns cover at least 99% of the test FS size in the guest's memory 3.512

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.951
Then I find very few patterns in the guest's memory after 3 seconds 6.935

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# read cache
When I mount the USB drive again 6.460
And I read the content of the test FS 1.153
Then patterns cover at least 99% of the test FS size in the guest's memory 3.513

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.589
Then I find very few patterns in the guest's memory after 3 seconds 5.973

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 0.814
After features/support/hooks.rb:100 0.000
51.474
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.171
And I prepare Tails for memory erasure tests 0.401
When I fill a 128 MiB file with a known pattern on the root filesystem 17.129
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.676
Then patterns cover at least 128 MiB in the guest's memory 3.095

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.987

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 3.597
After features/support/hooks.rb:100 0.000
7:36.223
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:52.426
And I prepare Tails for memory erasure tests 0.461
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.083
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.235

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:326 3.557
After features/support/hooks.rb:100 0.014