Project Number Date
test_Tails_ISO_stable 5102 19 Sep 2024, 08:35

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 11:34.812 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.
27.657
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.153
And I prepare Tails for memory erasure tests 0.561
When I start a process allocating 128 MiB of memory with a known pattern 2.581
Then patterns cover at least 128 MiB in the guest's memory 4.352

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

When I kill the allocating process 1.167
Then I find very few patterns in the guest's memory after 3 seconds 9.840

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 1.411
After features/support/hooks.rb:100 0.000
25.255
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.500
And I prepare Tails for memory erasure tests 0.513
And I find very few patterns in the guest's memory 3.656

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.848
Then patterns cover at least 99% of the test FS size in the guest's memory 3.390

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

When I umount "/mnt" 0.492
Then I find very few patterns in the guest's memory after 3 seconds 5.854

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

After features/support/hooks.rb:326 1.487
After features/support/hooks.rb:100 0.000
49.959
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.354
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.025
Then I find very few patterns in the guest's memory 3.293

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.675
Then patterns cover at least 75% of the test FS size in the guest's memory 4.370

Pattern coverage: 89.411% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.472
Then I find very few patterns in the guest's memory after 3 seconds 6.319

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 0.283
And I read the content of the test FS 1.016
Then patterns cover at least 99% of the test FS size in the guest's memory 4.063

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

When I umount the USB drive 0.636
Then I find very few patterns in the guest's memory after 3 seconds 5.942

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 2.314
After features/support/hooks.rb:100 0.000
1:17.689
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.553
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.908
Then I find very few patterns in the guest's memory 2.632

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.488
Then patterns cover at least 99% of the test FS size in the guest's memory 2.995

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

When I umount the USB drive 1.287
Then I find very few patterns in the guest's memory after 3 seconds 5.911

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

# read cache
When I mount the USB drive again 5.398
And I read the content of the test FS 0.445
Then patterns cover at least 99% of the test FS size in the guest's memory 2.829

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

When I umount the USB drive 1.391
Then I find very few patterns in the guest's memory after 3 seconds 5.403

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 1.209
After features/support/hooks.rb:100 0.000
48.064
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.394
And I prepare Tails for memory erasure tests 0.508
When I fill a 128 MiB file with a known pattern on the root filesystem 14.300
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.829
Then patterns cover at least 128 MiB in the guest's memory 2.312

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.703

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 3.579
After features/support/hooks.rb:100 0.000
7:46.186
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 7:2.770
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.872
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.142

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 3.539
After features/support/hooks.rb:100 0.012