Project Number Date
test_Tails_ISO_stable 5063 01 Sep 2024, 12:23

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 11:35.747 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.
22.753
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.401
And I prepare Tails for memory erasure tests 0.580
When I start a process allocating 128 MiB of memory with a known pattern 2.493
Then patterns cover at least 128 MiB in the guest's memory 3.488

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

When I kill the allocating process 1.768
Then I find very few patterns in the guest's memory after 3 seconds 6.020

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 1.173
After features/support/hooks.rb:100 0.000
25.733
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.803
And I prepare Tails for memory erasure tests 0.636
And I find very few patterns in the guest's memory 2.929

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.037
Then patterns cover at least 99% of the test FS size in the guest's memory 3.996

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

When I umount "/mnt" 0.887
Then I find very few patterns in the guest's memory after 3 seconds 6.442

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 0.772
After features/support/hooks.rb:100 0.000
49.681
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.174
And I prepare Tails for memory erasure tests 0.702
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.099
Then I find very few patterns in the guest's memory 2.793

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

# write cache
When I fill the USB drive with a known pattern 2.739
Then patterns cover at least 75% of the test FS size in the guest's memory 3.505

Pattern coverage: 90.675% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.534
Then I find very few patterns in the guest's memory after 3 seconds 5.907

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

# read cache
When I mount the USB drive again 0.521
And I read the content of the test FS 1.545
Then patterns cover at least 99% of the test FS size in the guest's memory 4.671

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

When I umount the USB drive 0.835
Then I find very few patterns in the guest's memory after 3 seconds 6.649

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

After features/support/hooks.rb:326 1.287
After features/support/hooks.rb:100 0.000
1:20.445
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.228
And I prepare Tails for memory erasure tests 0.806
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.850
Then I find very few patterns in the guest's memory 2.602

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.807
Then patterns cover at least 99% of the test FS size in the guest's memory 2.806

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

When I umount the USB drive 1.184
Then I find very few patterns in the guest's memory after 3 seconds 5.277

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 6.307
And I read the content of the test FS 0.677
Then patterns cover at least 99% of the test FS size in the guest's memory 3.142

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

When I umount the USB drive 3.186
Then I find very few patterns in the guest's memory after 3 seconds 5.566

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 0.949
After features/support/hooks.rb:100 0.000
51.590
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.519
And I prepare Tails for memory erasure tests 0.589
When I fill a 128 MiB file with a known pattern on the root filesystem 17.113
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.084
Then patterns cover at least 128 MiB in the guest's memory 2.497

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 20.773

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 3.564
After features/support/hooks.rb:100 0.000
7:45.543
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 7:1.545
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.385
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.203

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.508
After features/support/hooks.rb:100 0.055