Project Number Date
test_Tails_ISO_devel 3551 17 Oct 2024, 12:54

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 11:36.401 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.
27.105
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.516
And I prepare Tails for memory erasure tests 0.433
When I start a process allocating 128 MiB of memory with a known pattern 3.265
Then patterns cover at least 128 MiB in the guest's memory 4.412

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

When I kill the allocating process 1.560
Then I find very few patterns in the guest's memory after 3 seconds 6.916

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

After features/support/hooks.rb:326 0.753
After features/support/hooks.rb:100 0.000
32.178
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.895
And I prepare Tails for memory erasure tests 0.475
And I find very few patterns in the guest's memory 3.679

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 6.899
Then patterns cover at least 99% of the test FS size in the guest's memory 3.883

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

When I umount "/mnt" 0.614
Then I find very few patterns in the guest's memory after 3 seconds 6.730

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

After features/support/hooks.rb:326 0.955
After features/support/hooks.rb:100 0.000
53.800
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.068
And I prepare Tails for memory erasure tests 0.447
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.472
Then I find very few patterns in the guest's memory 3.842

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

# write cache
When I fill the USB drive with a known pattern 3.843
Then patterns cover at least 75% of the test FS size in the guest's memory 4.465

Pattern coverage: 86.157% (109 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.918
Then I find very few patterns in the guest's memory after 3 seconds 6.477

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

# read cache
When I mount the USB drive again 0.255
And I read the content of the test FS 0.823
Then patterns cover at least 99% of the test FS size in the guest's memory 4.407

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

When I umount the USB drive 2.136
Then I find very few patterns in the guest's memory after 3 seconds 6.641

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

After features/support/hooks.rb:326 0.843
After features/support/hooks.rb:100 0.000
1:16.327
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.337
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.114
Then I find very few patterns in the guest's memory 2.752

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.702
Then patterns cover at least 99% of the test FS size in the guest's memory 2.809

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

When I umount the USB drive 0.900
Then I find very few patterns in the guest's memory after 3 seconds 5.414

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# read cache
When I mount the USB drive again 6.004
And I read the content of the test FS 0.644
Then patterns cover at least 99% of the test FS size in the guest's memory 2.994

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

When I umount the USB drive 0.772
Then I find very few patterns in the guest's memory after 3 seconds 5.405

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 2.046
After features/support/hooks.rb:100 0.000
53.521
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.644
And I prepare Tails for memory erasure tests 0.402
When I fill a 128 MiB file with a known pattern on the root filesystem 16.775
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.749
Then patterns cover at least 128 MiB in the guest's memory 3.052

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.883

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

After features/support/hooks.rb:326 3.486
After features/support/hooks.rb:100 0.000
7:33.468
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 6:47.862
And I prepare Tails for memory erasure tests 0.447
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.845
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.298

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

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.011