Project Number Date
test_Tails_ISO_devel 3673 30 Jan 2025, 17:49

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 11:31.178 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.
24.863
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.641
And I prepare Tails for memory erasure tests 0.487
When I start a process allocating 128 MiB of memory with a known pattern 2.332
Then patterns cover at least 128 MiB in the guest's memory 3.619

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

When I kill the allocating process 1.733
Then I find very few patterns in the guest's memory after 5 seconds 8.048

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 1.777
After features/support/hooks.rb:100 0.000
27.077
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.455
And I prepare Tails for memory erasure tests 0.422
And I find very few patterns in the guest's memory 3.662

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.378
Then patterns cover at least 99% of the test FS size in the guest's memory 4.032

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

When I umount "/mnt" 1.638
Then I find very few patterns in the guest's memory after 3 seconds 6.487

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

After features/support/hooks.rb:326 1.319
After features/support/hooks.rb:100 0.000
53.113
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.163
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.226
Then I find very few patterns in the guest's memory 3.000

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

# write cache
When I fill the USB drive with a known pattern 4.653
Then patterns cover at least 75% of the test FS size in the guest's memory 4.131

Pattern coverage: 88.502% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.689
Then I find very few patterns in the guest's memory after 3 seconds 6.639

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

# read cache
When I mount the USB drive again 0.646
And I read the content of the test FS 2.049
Then patterns cover at least 99% of the test FS size in the guest's memory 3.640

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

When I umount the USB drive 2.103
Then I find very few patterns in the guest's memory after 3 seconds 6.732

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

After features/support/hooks.rb:326 2.608
After features/support/hooks.rb:100 0.000
1:19.015
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.342
And I prepare Tails for memory erasure tests 0.530
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.422
Then I find very few patterns in the guest's memory 2.532

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

# write cache
When I fill the USB drive with a known pattern 3.321
Then patterns cover at least 99% of the test FS size in the guest's memory 2.624

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

When I umount the USB drive 1.771
Then I find very few patterns in the guest's memory after 3 seconds 5.990

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

# read cache
When I mount the USB drive again 5.966
And I read the content of the test FS 0.521
Then patterns cover at least 99% of the test FS size in the guest's memory 3.668

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

When I umount the USB drive 1.304
Then I find very few patterns in the guest's memory after 3 seconds 6.020

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

After features/support/hooks.rb:326 0.918
After features/support/hooks.rb:100 0.000
51.805
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.200
And I prepare Tails for memory erasure tests 0.580
When I fill a 128 MiB file with a known pattern on the root filesystem 15.382
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.016
Then patterns cover at least 128 MiB in the guest's memory 2.823

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.790

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 3.561
After features/support/hooks.rb:100 0.000
7:35.302
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 6:50.856
And I prepare Tails for memory erasure tests 0.873
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.067
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.489

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

After features/support/hooks.rb:326 3.534
After features/support/hooks.rb:100 0.012