Project Number Date
test_Tails_ISO_stable 4607 08 Jan 2024, 16:53

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 14:12.741 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.
16.593
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.630
And I prepare Tails for memory erasure tests 0.488
When I start a process allocating 128 MiB of memory with a known pattern 1.325
Then patterns cover at least 128 MiB in the guest's memory 3.278

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

When I kill the allocating process 0.285
Then I find very few patterns in the guest's memory 3.585

Pattern coverage: 0.000% (0 MiB out of 1213 MiB reference memory)

After features/support/hooks.rb:291 0.722
After features/support/hooks.rb:75 0.000
55.759
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.712
And I prepare Tails for memory erasure tests 0.439
And I find very few patterns in the guest's memory 3.555

Pattern coverage: 0.000% (0 MiB out of 1219 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.432
Then patterns cover at least 99% of the test FS size in the guest's memory 2.870

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

When I umount "/mnt" 0.261
Then I find very few patterns in the guest's memory 3.488

Pattern coverage: 0.000% (0 MiB out of 1219 MiB reference memory)

After features/support/hooks.rb:291 0.863
After features/support/hooks.rb:75 0.000
3:14.306
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.967
And I prepare Tails for memory erasure tests 0.507
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.796
Then I find very few patterns in the guest's memory 3.529

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:40.263
Then patterns cover at least 86% of the test FS size in the guest's memory 2.865

Pattern coverage: 94.776% (118 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.810
Then I find very few patterns in the guest's memory 3.486

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

# read cache
When I mount the USB drive again 0.253
And I read the content of the test FS 0.566
Then patterns cover at least 99% of the test FS size in the guest's memory 2.840

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

When I umount the USB drive 0.966
Then I find very few patterns in the guest's memory 3.451

Pattern coverage: 0.000% (0 MiB out of 1187 MiB reference memory)

After features/support/hooks.rb:291 0.835
After features/support/hooks.rb:75 0.000
3:4.437
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.549
And I prepare Tails for memory erasure tests 0.504
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.860
Then I find very few patterns in the guest's memory 3.237

Pattern coverage: 0.000% (0 MiB out of 1212 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:10.198
Then patterns cover at least 99% of the test FS size in the guest's memory 2.522

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

When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory 3.250

Pattern coverage: 0.000% (0 MiB out of 1212 MiB reference memory)

# read cache
When I mount the USB drive again 3.400
And I read the content of the test FS 0.355
Then patterns cover at least 99% of the test FS size in the guest's memory 2.307

Pattern coverage: 108.661% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory 3.174

Pattern coverage: 0.000% (0 MiB out of 1212 MiB reference memory)

After features/support/hooks.rb:291 0.829
After features/support/hooks.rb:75 0.000
46.716
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.701
And I prepare Tails for memory erasure tests 0.508
When I fill a 128 MiB file with a known pattern on the root filesystem 12.276
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.518
Then patterns cover at least 128 MiB in the guest's memory 2.409

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

When I trigger shutdown 0.609
And I wait 20 seconds 20.006

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.688

Pattern coverage: 0.000% (0 MiB out of 1218 MiB reference memory)

After features/support/hooks.rb:291 3.471
After features/support/hooks.rb:75 0.000
5:54.927
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 5:7.951
And I prepare Tails for memory erasure tests 0.486
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.010
When I trigger shutdown 0.379
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.078

Pattern coverage: 0.000% (0 MiB out of 1179 MiB reference memory)

After features/support/hooks.rb:291 3.420
After features/support/hooks.rb:75 0.011