Project Number Date
test_Tails_ISO_devel 3386 14 May 2024, 12:42

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 11:13.851 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.
19.624
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.192
And I prepare Tails for memory erasure tests 0.415
When I start a process allocating 128 MiB of memory with a known pattern 2.498
Then patterns cover at least 128 MiB in the guest's memory 3.388

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

When I kill the allocating process 1.341
Then I find very few patterns in the guest's memory 3.787

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:305 0.818
After features/support/hooks.rb:89 0.000
24.644
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.115
And I prepare Tails for memory erasure tests 0.468
And I find very few patterns in the guest's memory 4.363

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.004
Then patterns cover at least 99% of the test FS size in the guest's memory 4.183

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

When I umount "/mnt" 0.759
Then I find very few patterns in the guest's memory 4.749

Pattern coverage: 0.000% (0 MiB out of 865 MiB reference memory)

After features/support/hooks.rb:305 0.788
After features/support/hooks.rb:89 0.000
48.631
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.107
And I prepare Tails for memory erasure tests 0.490
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.110
Then I find very few patterns in the guest's memory 4.954

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

# write cache
When I fill the USB drive with a known pattern 4.989
Then patterns cover at least 86% of the test FS size in the guest's memory 4.195

Pattern coverage: 89.974% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.561
Then I find very few patterns in the guest's memory 4.558

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

# read cache
When I mount the USB drive again 0.252
And I read the content of the test FS 0.565
Then patterns cover at least 99% of the test FS size in the guest's memory 4.041

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

When I umount the USB drive 0.583
Then I find very few patterns in the guest's memory 4.219

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

After features/support/hooks.rb:305 1.779
After features/support/hooks.rb:89 0.000
1:15.638
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.001
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.805
Then I find very few patterns in the guest's memory 3.711

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.256
Then patterns cover at least 99% of the test FS size in the guest's memory 2.656

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

When I umount the USB drive 0.922
Then I find very few patterns in the guest's memory 3.474

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 5.972
And I read the content of the test FS 0.373
Then patterns cover at least 99% of the test FS size in the guest's memory 2.814

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

When I umount the USB drive 1.901
Then I find very few patterns in the guest's memory 3.233

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:305 1.684
After features/support/hooks.rb:89 0.001
50.340
Before features/support/hooks.rb:259 0.009
Given I have started Tails from DVD without network and logged in 8.232
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 15.720
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.839
Then patterns cover at least 128 MiB in the guest's memory 2.309

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.787

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:305 3.533
After features/support/hooks.rb:89 0.000
7:34.970
Before features/support/hooks.rb:259 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:48.679
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.660
When I trigger shutdown 0.010
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.218

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

After features/support/hooks.rb:305 3.492
After features/support/hooks.rb:89 0.012