Project Number Date
test_Tails_ISO_stable 4611 10 Jan 2024, 17:11

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 14:30.395 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.
18.908
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.771
And I prepare Tails for memory erasure tests 0.418
When I start a process allocating 128 MiB of memory with a known pattern 2.288
Then patterns cover at least 128 MiB in the guest's memory 3.421

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.286
Then I find very few patterns in the guest's memory 3.721

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

After features/support/hooks.rb:291 0.732
After features/support/hooks.rb:75 0.000
58.177
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.321
And I prepare Tails for memory erasure tests 0.460
And I find very few patterns in the guest's memory 3.842

Pattern coverage: 0.000% (0 MiB out of 1198 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.529
Then patterns cover at least 99% of the test FS size in the guest's memory 3.048

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

When I umount "/mnt" 0.178
Then I find very few patterns in the guest's memory 3.795

Pattern coverage: 0.000% (0 MiB out of 1198 MiB reference memory)

After features/support/hooks.rb:291 0.830
After features/support/hooks.rb:75 0.000
3:19.456
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.073
And I prepare Tails for memory erasure tests 0.581
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.837
Then I find very few patterns in the guest's memory 3.690

Pattern coverage: 0.000% (0 MiB out of 1185 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:40.969
Then patterns cover at least 86% of the test FS size in the guest's memory 3.321

Pattern coverage: 95.519% (119 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.881
Then I find very few patterns in the guest's memory 5.268

Pattern coverage: 0.000% (0 MiB out of 1185 MiB reference memory)

# read cache
When I mount the USB drive again 0.285
And I read the content of the test FS 0.627
Then patterns cover at least 99% of the test FS size in the guest's memory 4.635

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.351
Then I find very few patterns in the guest's memory 3.934

Pattern coverage: 0.000% (0 MiB out of 1185 MiB reference memory)

After features/support/hooks.rb:291 1.170
After features/support/hooks.rb:75 0.001
2:45.777
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 10.952
And I prepare Tails for memory erasure tests 0.544
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.603
Then I find very few patterns in the guest's memory 4.816

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:39.222
Then patterns cover at least 99% of the test FS size in the guest's memory 2.777

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 2.222
Then I find very few patterns in the guest's memory 3.025

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

# read cache
When I mount the USB drive again 8.073
And I read the content of the test FS 0.456
Then patterns cover at least 99% of the test FS size in the guest's memory 2.630

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 1.233
Then I find very few patterns in the guest's memory 3.218

Pattern coverage: 0.000% (0 MiB out of 1192 MiB reference memory)

After features/support/hooks.rb:291 0.796
After features/support/hooks.rb:75 0.000
48.051
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.738
And I prepare Tails for memory erasure tests 0.641
When I fill a 128 MiB file with a known pattern on the root filesystem 12.516
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.368
Then patterns cover at least 128 MiB in the guest's memory 3.277

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

When I trigger shutdown 0.559
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.928

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 3.502
After features/support/hooks.rb:75 0.000
6:20.024
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 5:36.590
And I prepare Tails for memory erasure tests 0.589
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.316
When I trigger shutdown 0.280
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.227

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 3.432
After features/support/hooks.rb:75 0.011