Project Number Date
test_Tails_ISO_devel 3349 05 Apr 2024, 12:11

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 10:16.455 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.
20.548
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.187
And I prepare Tails for memory erasure tests 0.467
When I start a process allocating 128 MiB of memory with a known pattern 1.348
Then patterns cover at least 128 MiB in the guest's memory 4.399

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

When I kill the allocating process 1.036
Then I find very few patterns in the guest's memory 5.108

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:291 1.299
After features/support/hooks.rb:75 0.000
26.700
Before features/support/hooks.rb:245 0.015
Given I have started Tails from DVD without network and logged in 9.391
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 4.735

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 1.861
Then patterns cover at least 99% of the test FS size in the guest's memory 4.242

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

When I umount "/mnt" 0.562
Then I find very few patterns in the guest's memory 5.390

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

After features/support/hooks.rb:291 1.055
After features/support/hooks.rb:75 0.000
45.639
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.686
And I prepare Tails for memory erasure tests 0.546
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.050
Then I find very few patterns in the guest's memory 4.901

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.344
Then patterns cover at least 86% of the test FS size in the guest's memory 4.573

Pattern coverage: 95.876% (122 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.306
Then I find very few patterns in the guest's memory 4.759

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

# read cache
When I mount the USB drive again 0.987
And I read the content of the test FS 0.685
Then patterns cover at least 99% of the test FS size in the guest's memory 4.035

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

When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory 4.194

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:291 1.100
After features/support/hooks.rb:75 0.000
1:6.888
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.683
And I prepare Tails for memory erasure tests 0.559
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.902
Then I find very few patterns in the guest's memory 4.243

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

# write cache
When I fill the USB drive with a known pattern 2.014
Then patterns cover at least 99% of the test FS size in the guest's memory 3.892

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

When I umount the USB drive 0.760
Then I find very few patterns in the guest's memory 3.914

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

# read cache
When I mount the USB drive again 4.396
And I read the content of the test FS 0.486
Then patterns cover at least 99% of the test FS size in the guest's memory 3.475

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

When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory 3.986

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

After features/support/hooks.rb:291 0.985
After features/support/hooks.rb:75 0.000
48.870
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.133
And I prepare Tails for memory erasure tests 0.419
When I fill a 128 MiB file with a known pattern on the root filesystem 13.737
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.392
Then patterns cover at least 128 MiB in the guest's memory 3.262

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.006

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.902

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

After features/support/hooks.rb:291 3.517
After features/support/hooks.rb:75 0.000
6:47.807
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 5:59.358
And I prepare Tails for memory erasure tests 0.482
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.486
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.448

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:291 3.537
After features/support/hooks.rb:75 0.016