Project Number Date
test_Tails_ISO_stable 4711 12 Mar 2024, 12:15

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 10:6.572 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.
19.153
Before features/support/hooks.rb:245 0.005
Given I have started Tails from DVD without network and logged in 8.141
And I prepare Tails for memory erasure tests 0.362
When I start a process allocating 128 MiB of memory with a known pattern 2.763
Then patterns cover at least 128 MiB in the guest's memory 3.710

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

When I kill the allocating process 0.269
Then I find very few patterns in the guest's memory 3.905

Pattern coverage: 0.000% (0 MiB out of 937 MiB reference memory)

After features/support/hooks.rb:291 0.944
After features/support/hooks.rb:75 0.000
21.692
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.921
And I prepare Tails for memory erasure tests 0.382
And I find very few patterns in the guest's memory 3.720

Pattern coverage: 0.000% (0 MiB out of 944 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.401
Then patterns cover at least 99% of the test FS size in the guest's memory 3.240

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

When I umount "/mnt" 1.019
Then I find very few patterns in the guest's memory 4.006

Pattern coverage: 0.000% (0 MiB out of 944 MiB reference memory)

After features/support/hooks.rb:291 0.788
After features/support/hooks.rb:75 0.000
42.866
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.314
And I prepare Tails for memory erasure tests 0.394
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.893
Then I find very few patterns in the guest's memory 4.692

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

# write cache
When I fill the USB drive with a known pattern 2.484
Then patterns cover at least 86% of the test FS size in the guest's memory 4.209

Pattern coverage: 97.037% (123 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.395
Then I find very few patterns in the guest's memory 4.160

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

# read cache
When I mount the USB drive again 0.236
And I read the content of the test FS 1.146
Then patterns cover at least 99% of the test FS size in the guest's memory 3.506

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory 3.960

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

After features/support/hooks.rb:291 1.257
After features/support/hooks.rb:75 0.000
1:5.019
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.244
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.244
Then I find very few patterns in the guest's memory 4.032

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.241
Then patterns cover at least 99% of the test FS size in the guest's memory 3.403

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

When I umount the USB drive 0.897
Then I find very few patterns in the guest's memory 3.977

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

# read cache
When I mount the USB drive again 4.614
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 3.100

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

When I umount the USB drive 1.715
Then I find very few patterns in the guest's memory 3.703

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

After features/support/hooks.rb:291 1.732
After features/support/hooks.rb:75 0.000
53.209
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.831
And I prepare Tails for memory erasure tests 0.426
When I fill a 128 MiB file with a known pattern on the root filesystem 18.311
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.077
Then patterns cover at least 128 MiB in the guest's memory 2.627

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.901

Pattern coverage: 0.000% (0 MiB out of 940 MiB reference memory)

After features/support/hooks.rb:291 3.550
After features/support/hooks.rb:75 0.000
6:44.630
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:58.673
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.347
When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.127

Pattern coverage: 0.000% (0 MiB out of 958 MiB reference memory)

After features/support/hooks.rb:291 3.479
After features/support/hooks.rb:75 0.010