Project Number Date
test_Tails_ISO_devel 3461 13 Jul 2024, 12:43

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 12:3.157 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.
21.360
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.756
And I prepare Tails for memory erasure tests 0.396
When I start a process allocating 128 MiB of memory with a known pattern 2.411
Then patterns cover at least 128 MiB in the guest's memory 3.907

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

When I kill the allocating process 1.877
Then I find very few patterns in the guest's memory 4.011

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

After features/support/hooks.rb:326 1.744
After features/support/hooks.rb:100 0.000
25.923
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.886
And I prepare Tails for memory erasure tests 0.524
And I find very few patterns in the guest's memory 3.947

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.219
Then patterns cover at least 99% of the test FS size in the guest's memory 3.622

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

When I umount "/mnt" 1.204
Then I find very few patterns in the guest's memory 4.518

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

After features/support/hooks.rb:326 1.407
After features/support/hooks.rb:100 0.000
48.900
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.557
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.400
Then I find very few patterns in the guest's memory 4.936

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.315
Then patterns cover at least 86% of the test FS size in the guest's memory 4.131

Pattern coverage: 88.872% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.977
Then I find very few patterns in the guest's memory 4.704

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

# read cache
When I mount the USB drive again 0.305
And I read the content of the test FS 0.714
Then patterns cover at least 99% of the test FS size in the guest's memory 3.631

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

When I umount the USB drive 0.641
Then I find very few patterns in the guest's memory 5.179

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 1.024
After features/support/hooks.rb:100 0.000
1:28.599
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.159
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.467
Then I find very few patterns in the guest's memory 4.101

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.315
Then patterns cover at least 99% of the test FS size in the guest's memory 2.857

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

When I umount the USB drive 5.020
Then I find very few patterns in the guest's memory 3.547

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 11.402
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 3.364

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

When I umount the USB drive 5.554
Then I find very few patterns in the guest's memory 4.935

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 1.137
After features/support/hooks.rb:100 0.000
53.815
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.259
And I prepare Tails for memory erasure tests 0.520
When I fill a 128 MiB file with a known pattern on the root filesystem 16.094
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.814
Then patterns cover at least 128 MiB in the guest's memory 3.226

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.013

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.871

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 3.532
After features/support/hooks.rb:100 0.000
8:4.557
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 7:17.785
And I prepare Tails for memory erasure tests 0.454
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.070
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 2.212

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 3.527
After features/support/hooks.rb:100 0.015