Project Number Date
test_Tails_ISO_devel 3398 24 May 2024, 13:17

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 12:10.233 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.
28.681
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.940
And I prepare Tails for memory erasure tests 0.493
When I start a process allocating 128 MiB of memory with a known pattern 2.370
Then patterns cover at least 128 MiB in the guest's memory 5.269

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

When I kill the allocating process 2.234
Then I find very few patterns in the guest's memory 9.372

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

After features/support/hooks.rb:305 1.488
After features/support/hooks.rb:89 0.000
41.808
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.753
And I prepare Tails for memory erasure tests 0.430
And I find very few patterns in the guest's memory 7.055

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.828
Then patterns cover at least 99% of the test FS size in the guest's memory 9.406

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

When I umount "/mnt" 1.348
Then I find very few patterns in the guest's memory 10.985

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

After features/support/hooks.rb:305 1.546
After features/support/hooks.rb:89 0.000
57.876
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 12.227
And I prepare Tails for memory erasure tests 0.479
When I plug and mount a 128 MiB USB drive with a vfat filesystem 12.334
Then I find very few patterns in the guest's memory 5.352

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.854
Then patterns cover at least 86% of the test FS size in the guest's memory 4.854

Pattern coverage: 90.752% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.176
Then I find very few patterns in the guest's memory 4.395

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.510
And I read the content of the test FS 0.827
Then patterns cover at least 99% of the test FS size in the guest's memory 6.425

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

When I umount the USB drive 0.643
Then I find very few patterns in the guest's memory 4.795

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:305 1.520
After features/support/hooks.rb:89 0.000
1:20.984
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.549
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.365
Then I find very few patterns in the guest's memory 4.143

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

# write cache
When I fill the USB drive with a known pattern 2.740
Then patterns cover at least 99% of the test FS size in the guest's memory 3.804

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

When I umount the USB drive 2.036
Then I find very few patterns in the guest's memory 4.418

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

# read cache
When I mount the USB drive again 5.691
And I read the content of the test FS 2.167
Then patterns cover at least 99% of the test FS size in the guest's memory 3.627

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

When I umount the USB drive 1.770
Then I find very few patterns in the guest's memory 4.169

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

After features/support/hooks.rb:305 1.136
After features/support/hooks.rb:89 0.000
1:0.432
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.158
And I prepare Tails for memory erasure tests 0.458
When I fill a 128 MiB file with a known pattern on the root filesystem 22.684
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.741
Then patterns cover at least 128 MiB in the guest's memory 3.466

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.885

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

After features/support/hooks.rb:305 3.466
After features/support/hooks.rb:89 0.000
7:40.450
Before features/support/hooks.rb:259 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:51.392
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.245
When I trigger shutdown 0.012
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.395

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

After features/support/hooks.rb:305 3.518
After features/support/hooks.rb:89 0.012