Project Number Date
test_Tails_ISO_stable 4880 10 Jun 2024, 12:18

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 11:0.867 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.
19.702
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.906
And I prepare Tails for memory erasure tests 0.383
When I start a process allocating 128 MiB of memory with a known pattern 1.268
Then patterns cover at least 128 MiB in the guest's memory 3.722

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

When I kill the allocating process 1.415
Then I find very few patterns in the guest's memory 5.005

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:315 1.726
After features/support/hooks.rb:100 0.000
22.796
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.045
And I prepare Tails for memory erasure tests 0.400
And I find very few patterns in the guest's memory 4.074

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.897
Then patterns cover at least 99% of the test FS size in the guest's memory 3.576

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

When I umount "/mnt" 0.948
Then I find very few patterns in the guest's memory 3.853

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:315 1.442
After features/support/hooks.rb:100 0.000
41.629
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.907
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.923
Then I find very few patterns in the guest's memory 4.066

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

# write cache
When I fill the USB drive with a known pattern 2.670
Then patterns cover at least 86% of the test FS size in the guest's memory 3.703

Pattern coverage: 89.135% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.441
Then I find very few patterns in the guest's memory 3.776

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

# read cache
When I mount the USB drive again 0.190
And I read the content of the test FS 0.469
Then patterns cover at least 99% of the test FS size in the guest's memory 3.525

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

When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory 4.109

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

After features/support/hooks.rb:315 1.495
After features/support/hooks.rb:100 0.000
1:12.451
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.886
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.838
Then I find very few patterns in the guest's memory 3.595

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

# write cache
When I fill the USB drive with a known pattern 1.771
Then patterns cover at least 99% of the test FS size in the guest's memory 3.102

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

When I umount the USB drive 0.878
Then I find very few patterns in the guest's memory 3.644

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

# read cache
When I mount the USB drive again 5.169
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 3.374

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

When I umount the USB drive 0.569
Then I find very few patterns in the guest's memory 3.684

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

After features/support/hooks.rb:315 0.989
After features/support/hooks.rb:100 0.001
49.942
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.962
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the root filesystem 15.708
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.530
Then patterns cover at least 128 MiB in the guest's memory 2.565

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.689

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

After features/support/hooks.rb:315 3.485
After features/support/hooks.rb:100 0.000
7:34.344
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:50.108
And I prepare Tails for memory erasure tests 0.368
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.713
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 2.122

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

After features/support/hooks.rb:315 3.542
After features/support/hooks.rb:100 0.012