Project Number Date
test_Tails_ISO_stable 4875 05 Jun 2024, 20:00

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 11:51.562 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.
20.347
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.475
And I prepare Tails for memory erasure tests 0.456
When I start a process allocating 128 MiB of memory with a known pattern 2.383
Then patterns cover at least 128 MiB in the guest's memory 3.786

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

When I kill the allocating process 1.231
Then I find very few patterns in the guest's memory 4.014

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

After features/support/hooks.rb:315 0.812
After features/support/hooks.rb:100 0.000
23.361
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.207
And I prepare Tails for memory erasure tests 0.438
And I find very few patterns in the guest's memory 4.118

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.786
Then patterns cover at least 99% of the test FS size in the guest's memory 3.840

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

When I umount "/mnt" 0.900
Then I find very few patterns in the guest's memory 4.069

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

After features/support/hooks.rb:315 1.337
After features/support/hooks.rb:100 0.000
45.297
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.278
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.075
Then I find very few patterns in the guest's memory 4.461

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

# write cache
When I fill the USB drive with a known pattern 2.695
Then patterns cover at least 86% of the test FS size in the guest's memory 3.976

Pattern coverage: 91.566% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.613
Then I find very few patterns in the guest's memory 4.216

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

# read cache
When I mount the USB drive again 0.522
And I read the content of the test FS 0.505
Then patterns cover at least 99% of the test FS size in the guest's memory 4.016

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

When I umount the USB drive 0.663
Then I find very few patterns in the guest's memory 3.833

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

After features/support/hooks.rb:315 0.733
After features/support/hooks.rb:100 0.000
1:10.815
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.238
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.213
Then I find very few patterns in the guest's memory 3.731

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

# write cache
When I fill the USB drive with a known pattern 1.816
Then patterns cover at least 99% of the test FS size in the guest's memory 2.815

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

When I umount the USB drive 1.363
Then I find very few patterns in the guest's memory 3.684

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

# read cache
When I mount the USB drive again 4.975
And I read the content of the test FS 0.430
Then patterns cover at least 99% of the test FS size in the guest's memory 3.503

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 3.877

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

After features/support/hooks.rb:315 0.888
After features/support/hooks.rb:100 0.000
51.674
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.411
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the root filesystem 16.196
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.908
Then patterns cover at least 128 MiB in the guest's memory 2.941

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 1.781

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

After features/support/hooks.rb:315 3.553
After features/support/hooks.rb:100 0.000
8:20.067
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:36.672
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.745
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 2.227

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

After features/support/hooks.rb:315 3.525
After features/support/hooks.rb:100 0.012