Project Number Date
test_Tails_ISO_stable 4663 13 Feb 2024, 17:32

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 14:17.919 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.
17.537
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.574
And I prepare Tails for memory erasure tests 0.448
When I start a process allocating 128 MiB of memory with a known pattern 1.236
Then patterns cover at least 128 MiB in the guest's memory 3.352

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

When I kill the allocating process 0.316
Then I find very few patterns in the guest's memory 3.609

Pattern coverage: 0.000% (0 MiB out of 1208 MiB reference memory)

After features/support/hooks.rb:291 0.651
After features/support/hooks.rb:75 0.000
58.958
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.688
And I prepare Tails for memory erasure tests 0.523
And I find very few patterns in the guest's memory 3.724

Pattern coverage: 0.000% (0 MiB out of 1208 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.942
Then patterns cover at least 99% of the test FS size in the guest's memory 3.238

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

When I umount "/mnt" 0.286
Then I find very few patterns in the guest's memory 3.554

Pattern coverage: 0.000% (0 MiB out of 1208 MiB reference memory)

After features/support/hooks.rb:291 0.746
After features/support/hooks.rb:75 0.000
3:20.628
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.136
And I prepare Tails for memory erasure tests 0.582
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.793
Then I find very few patterns in the guest's memory 3.646

Pattern coverage: 0.000% (0 MiB out of 1209 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:45.539
Then patterns cover at least 86% of the test FS size in the guest's memory 3.007

Pattern coverage: 91.055% (113 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory 4.193

Pattern coverage: 0.000% (0 MiB out of 1209 MiB reference memory)

# read cache
When I mount the USB drive again 0.247
And I read the content of the test FS 0.562
Then patterns cover at least 99% of the test FS size in the guest's memory 3.306

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

When I umount the USB drive 0.307
Then I find very few patterns in the guest's memory 3.736

Pattern coverage: 0.000% (0 MiB out of 1209 MiB reference memory)

After features/support/hooks.rb:291 0.776
After features/support/hooks.rb:75 0.000
2:50.107
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.268
And I prepare Tails for memory erasure tests 0.570
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.312
Then I find very few patterns in the guest's memory 3.937

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

# write cache
When I fill the USB drive with a known pattern 1:46.329
Then patterns cover at least 99% of the test FS size in the guest's memory 3.403

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

When I umount the USB drive 0.831
Then I find very few patterns in the guest's memory 3.822

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

# read cache
When I mount the USB drive again 3.672
And I read the content of the test FS 1.658
Then patterns cover at least 99% of the test FS size in the guest's memory 3.522

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

When I umount the USB drive 1.230
Then I find very few patterns in the guest's memory 3.546

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

After features/support/hooks.rb:291 0.955
After features/support/hooks.rb:75 0.000
52.210
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.405
And I prepare Tails for memory erasure tests 0.562
When I fill a 128 MiB file with a known pattern on the root filesystem 15.310
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.973
Then patterns cover at least 128 MiB in the guest's memory 3.548

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

When I trigger shutdown 0.514
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.878

Pattern coverage: 0.000% (0 MiB out of 1195 MiB reference memory)

After features/support/hooks.rb:291 3.635
After features/support/hooks.rb:75 0.000
5:58.477
Before features/support/hooks.rb:245 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:15.323
And I prepare Tails for memory erasure tests 0.459
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.340
When I trigger shutdown 0.247
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.086

Pattern coverage: 0.000% (0 MiB out of 1199 MiB reference memory)

After features/support/hooks.rb:291 3.433
After features/support/hooks.rb:75 0.009