Project Number Date
test_Tails_ISO_devel 3409 31 May 2024, 19:26

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 13:3.950 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.
21.405
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 8.342
And I prepare Tails for memory erasure tests 0.716
When I start a process allocating 128 MiB of memory with a known pattern 3.716
Then patterns cover at least 128 MiB in the guest's memory 3.703

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

When I kill the allocating process 1.130
Then I find very few patterns in the guest's memory 3.795

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:311 0.792
After features/support/hooks.rb:100 0.000
27.655
Before features/support/hooks.rb:265 0.006
Given I have started Tails from DVD without network and logged in 8.201
And I prepare Tails for memory erasure tests 0.643
And I find very few patterns in the guest's memory 4.116

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 4.518
Then patterns cover at least 99% of the test FS size in the guest's memory 3.878

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

When I umount "/mnt" 1.403
Then I find very few patterns in the guest's memory 4.893

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:311 0.974
After features/support/hooks.rb:100 0.000
57.300
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.446
And I prepare Tails for memory erasure tests 0.629
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.268
Then I find very few patterns in the guest's memory 5.031

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

# write cache
When I fill the USB drive with a known pattern 12.125
Then patterns cover at least 86% of the test FS size in the guest's memory 4.246

Pattern coverage: 89.898% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.422
Then I find very few patterns in the guest's memory 4.854

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

# read cache
When I mount the USB drive again 0.331
And I read the content of the test FS 0.633
Then patterns cover at least 99% of the test FS size in the guest's memory 3.231

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

When I umount the USB drive 0.527
Then I find very few patterns in the guest's memory 4.552

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

After features/support/hooks.rb:311 0.974
After features/support/hooks.rb:100 0.000
1:14.261
Before features/support/hooks.rb:265 0.003
Given I have started Tails from DVD without network and logged in 9.084
And I prepare Tails for memory erasure tests 0.571
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.959
Then I find very few patterns in the guest's memory 4.281

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.144
Then patterns cover at least 99% of the test FS size in the guest's memory 3.639

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

When I umount the USB drive 1.218
Then I find very few patterns in the guest's memory 4.268

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# read cache
When I mount the USB drive again 4.432
And I read the content of the test FS 1.332
Then patterns cover at least 99% of the test FS size in the guest's memory 3.546

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

When I umount the USB drive 0.717
Then I find very few patterns in the guest's memory 4.064

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:311 0.987
After features/support/hooks.rb:100 0.000
53.213
Before features/support/hooks.rb:265 0.002
Given I have started Tails from DVD without network and logged in 8.151
And I prepare Tails for memory erasure tests 0.560
When I fill a 128 MiB file with a known pattern on the root filesystem 15.303
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.070
Then patterns cover at least 128 MiB in the guest's memory 5.108

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.003

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.000

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:311 3.524
After features/support/hooks.rb:100 0.000
9:10.113
Before features/support/hooks.rb:265 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 8:24.160
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.196
When I trigger shutdown 0.012
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.318

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

After features/support/hooks.rb:311 3.538
After features/support/hooks.rb:100 0.017