Project Number Date
test_Tails_ISO_devel 3432 18 Jun 2024, 16:38

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 11:18.746 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.
19.177
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.255
And I prepare Tails for memory erasure tests 0.395
When I start a process allocating 128 MiB of memory with a known pattern 1.180
Then patterns cover at least 128 MiB in the guest's memory 3.906

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

When I kill the allocating process 1.023
Then I find very few patterns in the guest's memory 4.415

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:320 1.397
After features/support/hooks.rb:100 0.000
24.024
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.265
And I prepare Tails for memory erasure tests 0.478
And I find very few patterns in the guest's memory 4.176

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.777
Then patterns cover at least 99% of the test FS size in the guest's memory 3.806

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

When I umount "/mnt" 0.498
Then I find very few patterns in the guest's memory 5.021

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:320 1.108
After features/support/hooks.rb:100 0.000
44.842
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.361
And I prepare Tails for memory erasure tests 0.453
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.153
Then I find very few patterns in the guest's memory 4.425

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.547
Then patterns cover at least 86% of the test FS size in the guest's memory 3.960

Pattern coverage: 86.919% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.410
Then I find very few patterns in the guest's memory 3.890

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# read cache
When I mount the USB drive again 0.325
And I read the content of the test FS 0.871
Then patterns cover at least 99% of the test FS size in the guest's memory 3.730

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

When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory 4.190

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:320 0.983
After features/support/hooks.rb:100 0.000
1:11.242
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.364
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.786
Then I find very few patterns in the guest's memory 3.739

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.976
Then patterns cover at least 99% of the test FS size in the guest's memory 3.215

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

When I umount the USB drive 1.018
Then I find very few patterns in the guest's memory 3.572

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# read cache
When I mount the USB drive again 4.597
And I read the content of the test FS 0.507
Then patterns cover at least 99% of the test FS size in the guest's memory 3.212

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.792
Then I find very few patterns in the guest's memory 4.021

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:320 0.885
After features/support/hooks.rb:100 0.000
51.687
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.249
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the root filesystem 16.199
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.288
Then patterns cover at least 128 MiB in the guest's memory 2.657

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.824

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

After features/support/hooks.rb:320 3.502
After features/support/hooks.rb:100 0.000
7:47.771
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:4.148
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 20.803
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.374

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

After features/support/hooks.rb:320 3.509
After features/support/hooks.rb:100 0.016