Project Number Date
test_Tails_ISO_stable 4997 05 Aug 2024, 12:24

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 10:58.233 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.
18.568
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.624
And I prepare Tails for memory erasure tests 0.383
When I start a process allocating 128 MiB of memory with a known pattern 1.239
Then patterns cover at least 128 MiB in the guest's memory 3.493

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

When I kill the allocating process 0.746
Then I find very few patterns in the guest's memory 4.081

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 1.101
After features/support/hooks.rb:100 0.000
22.279
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.210
And I prepare Tails for memory erasure tests 0.479
And I find very few patterns in the guest's memory 3.997

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 1.967
Then patterns cover at least 99% of the test FS size in the guest's memory 3.239

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

When I umount "/mnt" 0.624
Then I find very few patterns in the guest's memory 3.760

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

After features/support/hooks.rb:326 0.964
After features/support/hooks.rb:100 0.000
44.392
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.464
And I prepare Tails for memory erasure tests 0.395
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.104
Then I find very few patterns in the guest's memory 3.922

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.802
Then patterns cover at least 86% of the test FS size in the guest's memory 3.409

Pattern coverage: 88.848% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.601
Then I find very few patterns in the guest's memory 3.427

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# read cache
When I mount the USB drive again 0.299
And I read the content of the test FS 1.078
Then patterns cover at least 99% of the test FS size in the guest's memory 3.465

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

When I umount the USB drive 2.124
Then I find very few patterns in the guest's memory 4.295

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 1.003
After features/support/hooks.rb:100 0.000
1:16.701
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.574
And I prepare Tails for memory erasure tests 0.439
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.797
Then I find very few patterns in the guest's memory 3.738

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.038
Then patterns cover at least 99% of the test FS size in the guest's memory 2.947

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

When I umount the USB drive 1.052
Then I find very few patterns in the guest's memory 3.476

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 6.172
And I read the content of the test FS 0.563
Then patterns cover at least 99% of the test FS size in the guest's memory 2.930

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

When I umount the USB drive 1.182
Then I find very few patterns in the guest's memory 3.789

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 1.014
After features/support/hooks.rb:100 0.000
52.530
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.183
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 17.807
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.891
Then patterns cover at least 128 MiB in the guest's memory 2.459

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.740

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

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
7:23.761
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 6:38.023
And I prepare Tails for memory erasure tests 0.445
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.125
When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.134

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

After features/support/hooks.rb:326 3.468
After features/support/hooks.rb:100 0.033