Project Number Date
test_Tails_ISO_devel 3697 17 Feb 2025, 16:11

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 12:15.886 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.
24.292
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.097
And I prepare Tails for memory erasure tests 0.461
When I start a process allocating 128 MiB of memory with a known pattern 2.326
Then patterns cover at least 128 MiB in the guest's memory 3.567

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

When I kill the allocating process 0.276
Then I find very few patterns in the guest's memory after 5 seconds 8.562

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

After features/support/hooks.rb:326 0.833
After features/support/hooks.rb:100 0.000
26.003
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.113
And I prepare Tails for memory erasure tests 0.448
And I find very few patterns in the guest's memory 3.726

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.848
Then patterns cover at least 99% of the test FS size in the guest's memory 4.344

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

When I umount "/mnt" 0.753
Then I find very few patterns in the guest's memory after 3 seconds 6.769

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 0.865
After features/support/hooks.rb:100 0.000
57.476
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.429
And I prepare Tails for memory erasure tests 0.522
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.101
Then I find very few patterns in the guest's memory 3.966

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.790
Then patterns cover at least 75% of the test FS size in the guest's memory 5.773

Pattern coverage: 87.641% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 5.155
Then I find very few patterns in the guest's memory after 3 seconds 6.893

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.984
Then patterns cover at least 99% of the test FS size in the guest's memory 5.000

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

When I umount the USB drive 0.827
Then I find very few patterns in the guest's memory after 3 seconds 6.812

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 1.056
After features/support/hooks.rb:100 0.000
1:23.360
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.453
And I prepare Tails for memory erasure tests 0.474
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.174
Then I find very few patterns in the guest's memory 6.361

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

# write cache
When I fill the USB drive with a known pattern 3.710
Then patterns cover at least 99% of the test FS size in the guest's memory 3.805

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

When I umount the USB drive 1.131
Then I find very few patterns in the guest's memory after 3 seconds 6.325

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

# read cache
When I mount the USB drive again 5.075
And I read the content of the test FS 0.470
Then patterns cover at least 99% of the test FS size in the guest's memory 3.526

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.732
Then I find very few patterns in the guest's memory after 3 seconds 6.118

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

After features/support/hooks.rb:326 0.808
After features/support/hooks.rb:100 0.000
49.927
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.490
And I prepare Tails for memory erasure tests 0.451
When I fill a 128 MiB file with a known pattern on the root filesystem 15.284
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.849
Then patterns cover at least 128 MiB in the guest's memory 2.975

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.861

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.534
After features/support/hooks.rb:100 0.000
8:14.825
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 7:27.371
And I prepare Tails for memory erasure tests 0.497
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.594
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.342

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.525
After features/support/hooks.rb:100 0.012