Project Number Date
test_Tails_ISO_devel 3230 10 Jan 2024, 22:38

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 13:53.791 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.
20.528
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.161
And I prepare Tails for memory erasure tests 1.693
When I start a process allocating 128 MiB of memory with a known pattern 2.334
Then patterns cover at least 128 MiB in the guest's memory 4.058

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.476
Then I find very few patterns in the guest's memory 3.802

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

After features/support/hooks.rb:291 0.743
After features/support/hooks.rb:75 0.000
57.231
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.150
And I prepare Tails for memory erasure tests 0.546
And I find very few patterns in the guest's memory 3.960

Pattern coverage: 0.000% (0 MiB out of 1186 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.358
Then patterns cover at least 99% of the test FS size in the guest's memory 3.089

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

When I umount "/mnt" 0.410
Then I find very few patterns in the guest's memory 3.715

Pattern coverage: 0.000% (0 MiB out of 1186 MiB reference memory)

After features/support/hooks.rb:291 0.767
After features/support/hooks.rb:75 0.000
3:23.368
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.996
And I prepare Tails for memory erasure tests 0.590
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.775
Then I find very few patterns in the guest's memory 4.374

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:47.496
Then patterns cover at least 86% of the test FS size in the guest's memory 2.909

Pattern coverage: 98.033% (122 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.886
Then I find very few patterns in the guest's memory 3.670

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

# read cache
When I mount the USB drive again 0.253
And I read the content of the test FS 0.583
Then patterns cover at least 99% of the test FS size in the guest's memory 3.003

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.285
Then I find very few patterns in the guest's memory 4.542

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

After features/support/hooks.rb:291 0.699
After features/support/hooks.rb:75 0.000
2:35.326
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.202
And I prepare Tails for memory erasure tests 0.539
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.703
Then I find very few patterns in the guest's memory 3.337

Pattern coverage: 0.000% (0 MiB out of 1184 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:42.334
Then patterns cover at least 99% of the test FS size in the guest's memory 2.420

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.615
Then I find very few patterns in the guest's memory 3.389

Pattern coverage: 0.000% (0 MiB out of 1184 MiB reference memory)

# read cache
When I mount the USB drive again 3.439
And I read the content of the test FS 0.406
Then patterns cover at least 99% of the test FS size in the guest's memory 2.283

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.460
Then I find very few patterns in the guest's memory 3.193

Pattern coverage: 0.000% (0 MiB out of 1184 MiB reference memory)

After features/support/hooks.rb:291 0.735
After features/support/hooks.rb:75 0.000
51.085
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.920
And I prepare Tails for memory erasure tests 0.588
When I fill a 128 MiB file with a known pattern on the root filesystem 15.296
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.495
Then patterns cover at least 128 MiB in the guest's memory 2.620

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

When I trigger shutdown 1.419
And I wait 20 seconds 20.017

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.726

Pattern coverage: 0.000% (0 MiB out of 1197 MiB reference memory)

After features/support/hooks.rb:291 3.448
After features/support/hooks.rb:75 0.000
5:46.251
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:2.593
And I prepare Tails for memory erasure tests 0.506
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.856
When I trigger shutdown 0.211
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.064

Pattern coverage: 0.000% (0 MiB out of 1201 MiB reference memory)

After features/support/hooks.rb:291 3.482
After features/support/hooks.rb:75 0.010