Project Number Date
test_Tails_ISO_stable 4980 29 Jul 2024, 21:37

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:39.169 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.
25.349
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.140
And I prepare Tails for memory erasure tests 0.540
When I start a process allocating 128 MiB of memory with a known pattern 8.179
Then patterns cover at least 128 MiB in the guest's memory 3.986

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

When I kill the allocating process 0.725
Then I find very few patterns in the guest's memory 3.776

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 0.848
After features/support/hooks.rb:100 0.000
24.732
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.303
And I prepare Tails for memory erasure tests 0.525
And I find very few patterns in the guest's memory 3.756

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.267
Then patterns cover at least 99% of the test FS size in the guest's memory 4.658

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

When I umount "/mnt" 0.547
Then I find very few patterns in the guest's memory 4.673

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 0.831
After features/support/hooks.rb:100 0.000
1:0.651
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 20.762
And I prepare Tails for memory erasure tests 0.482
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.099
Then I find very few patterns in the guest's memory 4.726

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.348
Then patterns cover at least 86% of the test FS size in the guest's memory 4.653

Pattern coverage: 90.440% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.956
Then I find very few patterns in the guest's memory 4.609

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 0.455
And I read the content of the test FS 1.288
Then patterns cover at least 99% of the test FS size in the guest's memory 4.023

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

When I umount the USB drive 1.540
Then I find very few patterns in the guest's memory 4.705

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 0.843
After features/support/hooks.rb:100 0.000
1:11.664
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.394
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.358
Then I find very few patterns in the guest's memory 3.733

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.762
Then patterns cover at least 99% of the test FS size in the guest's memory 2.840

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

When I umount the USB drive 1.170
Then I find very few patterns in the guest's memory 3.440

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 5.078
And I read the content of the test FS 0.379
Then patterns cover at least 99% of the test FS size in the guest's memory 3.168

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.725
Then I find very few patterns in the guest's memory 4.119

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 2.294
After features/support/hooks.rb:100 0.000
51.506
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.259
And I prepare Tails for memory erasure tests 0.483
When I fill a 128 MiB file with a known pattern on the root filesystem 16.146
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.015
Then patterns cover at least 128 MiB in the guest's memory 2.785

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.780

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 3.497
After features/support/hooks.rb:100 0.000
7:45.266
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:59.356
And I prepare Tails for memory erasure tests 0.422
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.353
When I trigger shutdown 0.012
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.111

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 3.527
After features/support/hooks.rb:100 0.011