Project Number Date
test_Tails_ISO_stable 4979 29 Jul 2024, 15:09

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 11:17.875 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.
20.457
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.685
And I prepare Tails for memory erasure tests 0.488
When I start a process allocating 128 MiB of memory with a known pattern 2.638
Then patterns cover at least 128 MiB in the guest's memory 3.861

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

When I kill the allocating process 0.865
Then I find very few patterns in the guest's memory 3.917

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.896
After features/support/hooks.rb:100 0.000
23.597
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.260
And I prepare Tails for memory erasure tests 0.422
And I find very few patterns in the guest's memory 3.862

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.071
Then patterns cover at least 99% of the test FS size in the guest's memory 3.352

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

When I umount "/mnt" 1.391
Then I find very few patterns in the guest's memory 4.237

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 0.853
After features/support/hooks.rb:100 0.000
44.267
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.249
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.008
Then I find very few patterns in the guest's memory 4.354

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.435
Then patterns cover at least 86% of the test FS size in the guest's memory 3.812

Pattern coverage: 89.218% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.149
Then I find very few patterns in the guest's memory 3.713

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# read cache
When I mount the USB drive again 1.167
And I read the content of the test FS 0.540
Then patterns cover at least 99% of the test FS size in the guest's memory 3.698

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

When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory 4.171

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 0.875
After features/support/hooks.rb:100 0.000
1:12.745
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.104
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.089
Then I find very few patterns in the guest's memory 3.653

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.367
Then patterns cover at least 99% of the test FS size in the guest's memory 3.341

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

When I umount the USB drive 0.862
Then I find very few patterns in the guest's memory 3.597

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 7.342
And I read the content of the test FS 0.446
Then patterns cover at least 99% of the test FS size in the guest's memory 3.304

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

When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory 3.509

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 0.861
After features/support/hooks.rb:100 0.000
50.524
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.574
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the root filesystem 14.550
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.043
Then patterns cover at least 128 MiB in the guest's memory 3.076

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

When I trigger shutdown 0.019
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.850

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 3.556
After features/support/hooks.rb:100 0.000
7:46.282
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 6:59.920
And I prepare Tails for memory erasure tests 0.472
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.671
When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.183

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 3.590
After features/support/hooks.rb:100 0.014