Project Number Date
test_Tails_ISO_stable 4709 11 Mar 2024, 17:29

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 9:47.012 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.
18.478
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.992
And I prepare Tails for memory erasure tests 0.419
When I start a process allocating 128 MiB of memory with a known pattern 1.202
Then patterns cover at least 128 MiB in the guest's memory 4.041

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

When I kill the allocating process 0.679
Then I find very few patterns in the guest's memory 4.142

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:291 0.685
After features/support/hooks.rb:75 0.000
24.139
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.957
And I prepare Tails for memory erasure tests 0.430
And I find very few patterns in the guest's memory 4.200

Pattern coverage: 0.000% (0 MiB out of 934 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.880
Then patterns cover at least 99% of the test FS size in the guest's memory 4.690

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

When I umount "/mnt" 0.429
Then I find very few patterns in the guest's memory 4.550

Pattern coverage: 0.000% (0 MiB out of 934 MiB reference memory)

After features/support/hooks.rb:291 0.858
After features/support/hooks.rb:75 0.000
38.797
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.063
And I prepare Tails for memory erasure tests 0.396
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.793
Then I find very few patterns in the guest's memory 3.958

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.271
Then patterns cover at least 86% of the test FS size in the guest's memory 3.604

Pattern coverage: 94.138% (120 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.854
Then I find very few patterns in the guest's memory 3.770

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# read cache
When I mount the USB drive again 0.259
And I read the content of the test FS 0.519
Then patterns cover at least 99% of the test FS size in the guest's memory 3.401

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.118
Then I find very few patterns in the guest's memory 3.787

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:291 1.395
After features/support/hooks.rb:75 0.000
1:1.660
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.021
And I prepare Tails for memory erasure tests 0.359
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.766
Then I find very few patterns in the guest's memory 3.701

Pattern coverage: 0.000% (0 MiB out of 915 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 2.849

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

When I umount the USB drive 0.772
Then I find very few patterns in the guest's memory 3.472

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# read cache
When I mount the USB drive again 3.995
And I read the content of the test FS 0.411
Then patterns cover at least 99% of the test FS size in the guest's memory 2.881

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

When I umount the USB drive 0.430
Then I find very few patterns in the guest's memory 3.518

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

After features/support/hooks.rb:291 0.866
After features/support/hooks.rb:75 0.000
47.217
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.902
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the root filesystem 13.145
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.255
Then patterns cover at least 128 MiB in the guest's memory 2.740

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.735

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

After features/support/hooks.rb:291 3.477
After features/support/hooks.rb:75 0.000
6:36.719
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:53.599
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.543
When I trigger shutdown 0.011
And I wait 20 seconds 20.012

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.197

Pattern coverage: 0.000% (0 MiB out of 932 MiB reference memory)

After features/support/hooks.rb:291 3.529
After features/support/hooks.rb:75 0.012