Project Number Date
test_Tails_ISO_devel 3252 25 Jan 2024, 13:07

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 13:55.410 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.
18.452
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.872
And I prepare Tails for memory erasure tests 0.566
When I start a process allocating 128 MiB of memory with a known pattern 2.364
Then patterns cover at least 128 MiB in the guest's memory 3.432

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

When I kill the allocating process 0.267
Then I find very few patterns in the guest's memory 3.948

Pattern coverage: 0.000% (0 MiB out of 1204 MiB reference memory)

After features/support/hooks.rb:291 0.726
After features/support/hooks.rb:75 0.000
59.531
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.975
And I prepare Tails for memory erasure tests 0.456
And I find very few patterns in the guest's memory 3.618

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.551
Then patterns cover at least 99% of the test FS size in the guest's memory 3.978

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

When I umount "/mnt" 0.274
Then I find very few patterns in the guest's memory 3.676

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

After features/support/hooks.rb:291 0.759
After features/support/hooks.rb:75 0.000
2:53.973
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.883
And I prepare Tails for memory erasure tests 0.544
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.818
Then I find very few patterns in the guest's memory 3.714

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:16.764
Then patterns cover at least 86% of the test FS size in the guest's memory 3.378

Pattern coverage: 94.833% (118 MiB out of 124 MiB reference memory)

When I umount the USB drive 1.091
Then I find very few patterns in the guest's memory 3.700

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

# read cache
When I mount the USB drive again 0.323
And I read the content of the test FS 1.670
Then patterns cover at least 99% of the test FS size in the guest's memory 3.195

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

When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory 4.323

Pattern coverage: 0.000% (0 MiB out of 1202 MiB reference memory)

After features/support/hooks.rb:291 0.926
After features/support/hooks.rb:75 0.000
2:47.512
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.230
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 21.971
Then I find very few patterns in the guest's memory 3.906

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:48.920
Then patterns cover at least 99% of the test FS size in the guest's memory 4.554

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

When I umount the USB drive 0.896
Then I find very few patterns in the guest's memory 5.298

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

# read cache
When I mount the USB drive again 3.645
And I read the content of the test FS 0.437
Then patterns cover at least 99% of the test FS size in the guest's memory 3.936

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

When I umount the USB drive 0.893
Then I find very few patterns in the guest's memory 4.344

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

After features/support/hooks.rb:291 1.837
After features/support/hooks.rb:75 0.000
52.375
Before features/support/hooks.rb:245 0.008
Given I have started Tails from DVD without network and logged in 8.365
And I prepare Tails for memory erasure tests 0.438
When I fill a 128 MiB file with a known pattern on the root filesystem 16.022
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.185
Then patterns cover at least 128 MiB in the guest's memory 2.636

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

When I trigger shutdown 0.896
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.815

Pattern coverage: 0.000% (0 MiB out of 1217 MiB reference memory)

After features/support/hooks.rb:291 3.494
After features/support/hooks.rb:75 0.000
6:3.564
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:19.285
And I prepare Tails for memory erasure tests 0.456
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.239
When I trigger shutdown 0.341
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.222

Pattern coverage: 0.000% (0 MiB out of 1158 MiB reference memory)

After features/support/hooks.rb:291 3.470
After features/support/hooks.rb:75 0.010