Project Number Date
test_Tails_ISO_stable 4786 13 Apr 2024, 11:49

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 9:38.103 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.
20.322
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.603
And I prepare Tails for memory erasure tests 0.422
When I start a process allocating 128 MiB of memory with a known pattern 2.274
Then patterns cover at least 128 MiB in the guest's memory 4.131

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

When I kill the allocating process 0.910
Then I find very few patterns in the guest's memory 3.979

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:305 0.670
After features/support/hooks.rb:89 0.000
23.821
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 7.891
And I prepare Tails for memory erasure tests 0.431
And I find very few patterns in the guest's memory 3.901

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.885
Then patterns cover at least 99% of the test FS size in the guest's memory 3.349

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

When I umount "/mnt" 1.903
Then I find very few patterns in the guest's memory 4.458

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

After features/support/hooks.rb:305 0.725
After features/support/hooks.rb:89 0.000
43.397
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 7.920
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.834
Then I find very few patterns in the guest's memory 4.030

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

# write cache
When I fill the USB drive with a known pattern 2.320
Then patterns cover at least 86% of the test FS size in the guest's memory 3.091

Pattern coverage: 87.886% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.139
Then I find very few patterns in the guest's memory 4.137

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

# read cache
When I mount the USB drive again 0.375
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 4.014

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

When I umount the USB drive 4.980
Then I find very few patterns in the guest's memory 3.761

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

After features/support/hooks.rb:305 0.941
After features/support/hooks.rb:89 0.000
59.305
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 7.846
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.341
Then I find very few patterns in the guest's memory 3.312

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.533
Then patterns cover at least 99% of the test FS size in the guest's memory 2.894

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

When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory 3.332

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 3.480
And I read the content of the test FS 0.394
Then patterns cover at least 99% of the test FS size in the guest's memory 2.378

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

When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory 3.295

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:305 0.951
After features/support/hooks.rb:89 0.000
51.471
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.442
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the root filesystem 17.168
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.135
Then patterns cover at least 128 MiB in the guest's memory 2.577

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.668

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:305 3.490
After features/support/hooks.rb:89 0.000
6:19.783
Before features/support/hooks.rb:259 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:37.583
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.618
When I trigger shutdown 0.010
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.139

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

After features/support/hooks.rb:305 3.522
After features/support/hooks.rb:89 0.014