Project Number Date
test_Tails_ISO_stable 4998 05 Aug 2024, 14:46

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 11:30.041 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.
20.323
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.297
And I prepare Tails for memory erasure tests 0.526
When I start a process allocating 128 MiB of memory with a known pattern 2.469
Then patterns cover at least 128 MiB in the guest's memory 3.880

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

When I kill the allocating process 1.133
Then I find very few patterns in the guest's memory 4.016

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.957
After features/support/hooks.rb:100 0.000
24.701
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.262
And I prepare Tails for memory erasure tests 0.500
And I find very few patterns in the guest's memory 4.868

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.034
Then patterns cover at least 99% of the test FS size in the guest's memory 3.752

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

When I umount "/mnt" 0.921
Then I find very few patterns in the guest's memory 4.362

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

After features/support/hooks.rb:326 1.038
After features/support/hooks.rb:100 0.000
47.915
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.571
And I prepare Tails for memory erasure tests 0.594
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.111
Then I find very few patterns in the guest's memory 4.488

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.102
Then patterns cover at least 86% of the test FS size in the guest's memory 4.321

Pattern coverage: 90.020% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.750
Then I find very few patterns in the guest's memory 4.605

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 1.249
And I read the content of the test FS 0.772
Then patterns cover at least 99% of the test FS size in the guest's memory 3.503

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

When I umount the USB drive 1.082
Then I find very few patterns in the guest's memory 3.761

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 1.099
After features/support/hooks.rb:100 0.000
1:9.636
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.168
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.845
Then I find very few patterns in the guest's memory 3.607

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.060
Then patterns cover at least 99% of the test FS size in the guest's memory 3.140

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

When I umount the USB drive 1.008
Then I find very few patterns in the guest's memory 3.632

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 5.429
And I read the content of the test FS 0.875
Then patterns cover at least 99% of the test FS size in the guest's memory 3.100

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

When I umount the USB drive 0.783
Then I find very few patterns in the guest's memory 3.507

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 1.020
After features/support/hooks.rb:100 0.000
53.054
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.177
And I prepare Tails for memory erasure tests 0.482
When I fill a 128 MiB file with a known pattern on the root filesystem 17.683
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.727
Then patterns cover at least 128 MiB in the guest's memory 2.984

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.003

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.980

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

After features/support/hooks.rb:326 3.577
After features/support/hooks.rb:100 0.000
7:54.410
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 7:8.709
And I prepare Tails for memory erasure tests 0.375
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.064
When I trigger shutdown 0.013
And I wait 20 seconds 20.002

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.244

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

After features/support/hooks.rb:326 3.504
After features/support/hooks.rb:100 0.012