Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 42 09 Dec 2024, 20:47

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 11:0.163 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.
20.499
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.023
And I prepare Tails for memory erasure tests 0.409
When I start a process allocating 128 MiB of memory with a known pattern 1.322
Then patterns cover at least 128 MiB in the guest's memory 3.739

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

When I kill the allocating process 0.500
Then I find very few patterns in the guest's memory after 3 seconds 6.505

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

After features/support/hooks.rb:326 1.052
After features/support/hooks.rb:100 0.000
27.214
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.881
And I prepare Tails for memory erasure tests 0.786
And I find very few patterns in the guest's memory 3.968

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.002
Then patterns cover at least 99% of the test FS size in the guest's memory 4.377

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

When I umount "/mnt" 0.732
Then I find very few patterns in the guest's memory after 3 seconds 6.464

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

After features/support/hooks.rb:326 0.792
After features/support/hooks.rb:100 0.000
48.948
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.207
And I prepare Tails for memory erasure tests 0.619
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.232
Then I find very few patterns in the guest's memory 3.520

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.922
Then patterns cover at least 75% of the test FS size in the guest's memory 3.512

Pattern coverage: 89.876% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.288
Then I find very few patterns in the guest's memory after 3 seconds 6.172

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

# read cache
When I mount the USB drive again 0.308
And I read the content of the test FS 0.711
Then patterns cover at least 99% of the test FS size in the guest's memory 3.661

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

When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory after 3 seconds 6.210

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

After features/support/hooks.rb:326 0.762
After features/support/hooks.rb:100 0.000
1:13.228
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.197
And I prepare Tails for memory erasure tests 0.442
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.249
Then I find very few patterns in the guest's memory 2.656

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.019
Then patterns cover at least 99% of the test FS size in the guest's memory 2.968

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

When I umount the USB drive 1.046
Then I find very few patterns in the guest's memory after 3 seconds 5.566

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

# read cache
When I mount the USB drive again 5.035
And I read the content of the test FS 1.016
Then patterns cover at least 99% of the test FS size in the guest's memory 3.123

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

When I umount the USB drive 2.350
Then I find very few patterns in the guest's memory after 3 seconds 5.557

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

After features/support/hooks.rb:326 0.771
After features/support/hooks.rb:100 0.000
48.211
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.261
And I prepare Tails for memory erasure tests 0.468
When I fill a 128 MiB file with a known pattern on the root filesystem 14.087
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.946
Then patterns cover at least 128 MiB in the guest's memory 2.632

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.799

Pattern coverage: 0.000% (0 MiB out of 921 MiB reference memory)

After features/support/hooks.rb:326 3.497
After features/support/hooks.rb:100 0.000
7:22.060
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 6:32.715
And I prepare Tails for memory erasure tests 1.282
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.889
When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 21.153

Pattern coverage: 0.000% (0 MiB out of 932 MiB reference memory)

After features/support/hooks.rb:326 3.520
After features/support/hooks.rb:100 0.011