Project Number Date
test_Tails_ISO_20635-greeter-threading-fixes 44 01 Dec 2024, 19:52

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 11:51.805 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.
23.628
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.483
And I prepare Tails for memory erasure tests 0.463
When I start a process allocating 128 MiB of memory with a known pattern 1.211
Then patterns cover at least 128 MiB in the guest's memory 4.300

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

When I kill the allocating process 2.239
Then I find very few patterns in the guest's memory after 3 seconds 6.929

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

After features/support/hooks.rb:326 2.237
After features/support/hooks.rb:100 0.000
26.327
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.577
And I prepare Tails for memory erasure tests 0.454
And I find very few patterns in the guest's memory 3.900

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 1.840
Then patterns cover at least 99% of the test FS size in the guest's memory 4.340

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

When I umount "/mnt" 0.517
Then I find very few patterns in the guest's memory after 3 seconds 6.696

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

After features/support/hooks.rb:326 0.888
After features/support/hooks.rb:100 0.000
53.077
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.312
And I prepare Tails for memory erasure tests 0.512
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.446
Then I find very few patterns in the guest's memory 4.185

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.434
Then patterns cover at least 75% of the test FS size in the guest's memory 4.638

Pattern coverage: 87.378% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.616
Then I find very few patterns in the guest's memory after 3 seconds 6.672

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.302
And I read the content of the test FS 0.598
Then patterns cover at least 99% of the test FS size in the guest's memory 4.105

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

When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory after 3 seconds 6.652

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 1.211
After features/support/hooks.rb:100 0.000
1:27.133
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.460
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.759
Then I find very few patterns in the guest's memory 3.218

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

# write cache
When I fill the USB drive with a known pattern 2.716
Then patterns cover at least 99% of the test FS size in the guest's memory 3.729

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

When I umount the USB drive 1.348
Then I find very few patterns in the guest's memory after 3 seconds 7.121

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

# read cache
When I mount the USB drive again 12.913
And I read the content of the test FS 0.525
Then patterns cover at least 99% of the test FS size in the guest's memory 3.714

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

When I umount the USB drive 1.053
Then I find very few patterns in the guest's memory after 3 seconds 6.152

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

After features/support/hooks.rb:326 2.717
After features/support/hooks.rb:100 0.000
54.453
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.510
And I prepare Tails for memory erasure tests 0.455
When I fill a 128 MiB file with a known pattern on the root filesystem 16.423
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.319
Then patterns cover at least 128 MiB in the guest's memory 3.227

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.502

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

After features/support/hooks.rb:326 3.576
After features/support/hooks.rb:100 0.000
7:47.185
Before features/support/hooks.rb:269 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:3.698
And I prepare Tails for memory erasure tests 0.499
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.760
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.208

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

After features/support/hooks.rb:326 3.571
After features/support/hooks.rb:100 0.011