Project Number Date
test_Tails_ISO_stable 4953 17 Jul 2024, 22:52

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 10:20.597 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.
17.903
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.108
And I prepare Tails for memory erasure tests 0.403
When I start a process allocating 128 MiB of memory with a known pattern 1.204
Then patterns cover at least 128 MiB in the guest's memory 3.384

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

When I kill the allocating process 1.166
Then I find very few patterns in the guest's memory 3.634

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 1.659
After features/support/hooks.rb:100 0.000
21.689
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.066
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 3.906

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.611
Then patterns cover at least 99% of the test FS size in the guest's memory 3.429

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

When I umount "/mnt" 0.517
Then I find very few patterns in the guest's memory 3.719

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 0.783
After features/support/hooks.rb:100 0.000
45.216
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.011
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.045
Then I find very few patterns in the guest's memory 4.127

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.807
Then patterns cover at least 86% of the test FS size in the guest's memory 3.425

Pattern coverage: 87.574% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.776
Then I find very few patterns in the guest's memory 3.454

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 0.260
And I read the content of the test FS 0.863
Then patterns cover at least 99% of the test FS size in the guest's memory 3.875

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

When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory 4.606

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 1.351
After features/support/hooks.rb:100 0.000
1:9.459
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.141
And I prepare Tails for memory erasure tests 0.424
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.429
Then I find very few patterns in the guest's memory 3.471

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.626
Then patterns cover at least 99% of the test FS size in the guest's memory 3.026

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

When I umount the USB drive 0.835
Then I find very few patterns in the guest's memory 4.013

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 4.771
And I read the content of the test FS 0.573
Then patterns cover at least 99% of the test FS size in the guest's memory 3.425

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

When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory 4.062

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 0.809
After features/support/hooks.rb:100 0.000
52.014
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.915
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 17.255
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.866
Then patterns cover at least 128 MiB in the guest's memory 2.697

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 1.821

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 3.508
After features/support/hooks.rb:100 0.000
6:54.313
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 6:8.912
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.879
When I trigger shutdown 0.011
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.126

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 3.531
After features/support/hooks.rb:100 0.010