Project Number Date
test_Tails_ISO_stable 5219 24 Oct 2024, 19:19

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 12:44.782 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.
24.879
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.621
And I prepare Tails for memory erasure tests 0.452
When I start a process allocating 128 MiB of memory with a known pattern 2.393
Then patterns cover at least 128 MiB in the guest's memory 5.289

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

When I kill the allocating process 1.483
Then I find very few patterns in the guest's memory after 3 seconds 6.637

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.753
After features/support/hooks.rb:100 0.000
28.576
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.455
And I prepare Tails for memory erasure tests 0.407
And I find very few patterns in the guest's memory 3.686

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.152
Then patterns cover at least 99% of the test FS size in the guest's memory 4.161

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

When I umount "/mnt" 1.585
Then I find very few patterns in the guest's memory after 3 seconds 7.127

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 1.294
After features/support/hooks.rb:100 0.000
57.334
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.679
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.243
Then I find very few patterns in the guest's memory 3.922

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

# write cache
When I fill the USB drive with a known pattern 4.025
Then patterns cover at least 75% of the test FS size in the guest's memory 4.485

Pattern coverage: 89.757% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.767
Then I find very few patterns in the guest's memory after 3 seconds 10.582

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

# read cache
When I mount the USB drive again 0.249
And I read the content of the test FS 0.670
Then patterns cover at least 99% of the test FS size in the guest's memory 3.868

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

When I umount the USB drive 0.999
Then I find very few patterns in the guest's memory after 3 seconds 7.343

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

After features/support/hooks.rb:326 1.031
After features/support/hooks.rb:100 0.000
1:34.386
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.560
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.023
Then I find very few patterns in the guest's memory 3.117

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.930
Then patterns cover at least 99% of the test FS size in the guest's memory 3.868

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

When I umount the USB drive 0.903
Then I find very few patterns in the guest's memory after 3 seconds 6.316

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 18.650
And I read the content of the test FS 2.992
Then patterns cover at least 99% of the test FS size in the guest's memory 3.728

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

When I umount the USB drive 0.751
Then I find very few patterns in the guest's memory after 3 seconds 6.105

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 2.489
After features/support/hooks.rb:100 0.001
49.258
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.513
And I prepare Tails for memory erasure tests 0.501
When I fill a 128 MiB file with a known pattern on the root filesystem 14.357
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.696
Then patterns cover at least 128 MiB in the guest's memory 3.258

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.918

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

After features/support/hooks.rb:326 3.513
After features/support/hooks.rb:100 0.000
8:30.347
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 7:44.160
And I prepare Tails for memory erasure tests 0.481
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.053
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.639

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

After features/support/hooks.rb:326 3.595
After features/support/hooks.rb:100 0.015