Project Number Date
test_Tails_ISO_stable 4733 21 Mar 2024, 12:10

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 9:53.270 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.
18.422
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.875
And I prepare Tails for memory erasure tests 0.403
When I start a process allocating 128 MiB of memory with a known pattern 1.177
Then patterns cover at least 128 MiB in the guest's memory 3.953

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

When I kill the allocating process 1.112
Then I find very few patterns in the guest's memory 3.899

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:291 1.746
After features/support/hooks.rb:75 0.000
22.421
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.176
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 3.891

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.675
Then patterns cover at least 99% of the test FS size in the guest's memory 3.486

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

When I umount "/mnt" 0.700
Then I find very few patterns in the guest's memory 4.080

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

After features/support/hooks.rb:291 1.528
After features/support/hooks.rb:75 0.000
41.687
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.019
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.752
Then I find very few patterns in the guest's memory 4.039

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.307
Then patterns cover at least 86% of the test FS size in the guest's memory 3.429

Pattern coverage: 89.846% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.853
Then I find very few patterns in the guest's memory 4.671

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

# read cache
When I mount the USB drive again 0.208
And I read the content of the test FS 0.681
Then patterns cover at least 99% of the test FS size in the guest's memory 3.799

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

When I umount the USB drive 1.239
Then I find very few patterns in the guest's memory 4.311

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

After features/support/hooks.rb:291 3.605
After features/support/hooks.rb:75 0.000
1:0.190
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.015
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.973
Then I find very few patterns in the guest's memory 3.828

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.681
Then patterns cover at least 99% of the test FS size in the guest's memory 2.989

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

When I umount the USB drive 0.691
Then I find very few patterns in the guest's memory 3.583

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# read cache
When I mount the USB drive again 3.894
And I read the content of the test FS 0.630
Then patterns cover at least 99% of the test FS size in the guest's memory 3.681

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

When I umount the USB drive 0.609
Then I find very few patterns in the guest's memory 4.230

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:291 0.999
After features/support/hooks.rb:75 0.000
53.814
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.123
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the root filesystem 16.464
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 4.076
Then patterns cover at least 128 MiB in the guest's memory 2.897

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.775

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:291 3.524
After features/support/hooks.rb:75 0.000
6:36.734
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 5:52.918
And I prepare Tails for memory erasure tests 0.433
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.207
When I trigger shutdown 0.017
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.140

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

After features/support/hooks.rb:291 3.522
After features/support/hooks.rb:75 0.012