Project Number Date
test_Tails_ISO_stable 5183 15 Oct 2024, 08:32

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 10:39.127 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.
19.708
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.099
And I prepare Tails for memory erasure tests 0.438
When I start a process allocating 128 MiB of memory with a known pattern 1.299
Then patterns cover at least 128 MiB in the guest's memory 3.440

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

When I kill the allocating process 0.845
Then I find very few patterns in the guest's memory after 3 seconds 5.583

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 0.965
After features/support/hooks.rb:100 0.000
23.338
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.325
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 3.002

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.918
Then patterns cover at least 99% of the test FS size in the guest's memory 3.408

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

When I umount "/mnt" 0.622
Then I find very few patterns in the guest's memory after 3 seconds 5.643

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 1.285
After features/support/hooks.rb:100 0.000
45.567
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.144
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.223
Then I find very few patterns in the guest's memory 2.614

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

# write cache
When I fill the USB drive with a known pattern 2.494
Then patterns cover at least 75% of the test FS size in the guest's memory 3.204

Pattern coverage: 89.148% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.054
Then I find very few patterns in the guest's memory after 3 seconds 5.778

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

# read cache
When I mount the USB drive again 0.395
And I read the content of the test FS 0.614
Then patterns cover at least 99% of the test FS size in the guest's memory 3.304

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

When I umount the USB drive 1.556
Then I find very few patterns in the guest's memory after 3 seconds 5.758

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

After features/support/hooks.rb:326 1.252
After features/support/hooks.rb:100 0.000
1:25.030
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.999
And I prepare Tails for memory erasure tests 0.478
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.087
Then I find very few patterns in the guest's memory 2.333

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.414
Then patterns cover at least 99% of the test FS size in the guest's memory 2.715

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

When I umount the USB drive 1.256
Then I find very few patterns in the guest's memory after 3 seconds 5.319

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# read cache
When I mount the USB drive again 5.604
And I read the content of the test FS 0.559
Then patterns cover at least 99% of the test FS size in the guest's memory 2.913

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

When I umount the USB drive 0.935
Then I find very few patterns in the guest's memory after 3 seconds 5.412

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 0.831
After features/support/hooks.rb:100 0.000
52.723
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.493
And I prepare Tails for memory erasure tests 0.537
When I fill a 128 MiB file with a known pattern on the root filesystem 16.374
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.010
Then patterns cover at least 128 MiB in the guest's memory 2.597

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

When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.694

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.538
After features/support/hooks.rb:100 0.000
6:52.757
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 6:7.531
And I prepare Tails for memory erasure tests 0.614
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.469
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.130

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 3.501
After features/support/hooks.rb:100 0.014