Project Number Date
test_Tails_ISO_stable 4596 30 Dec 2023, 12:20

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 13:51.562 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.
18.022
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.520
And I prepare Tails for memory erasure tests 0.554
When I start a process allocating 128 MiB of memory with a known pattern 1.279
Then patterns cover at least 128 MiB in the guest's memory 3.397

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

When I kill the allocating process 0.255
Then I find very few patterns in the guest's memory 4.014

Pattern coverage: 0.000% (0 MiB out of 1232 MiB reference memory)

After features/support/hooks.rb:291 0.705
After features/support/hooks.rb:75 0.000
1:0.945
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.668
And I prepare Tails for memory erasure tests 0.572
And I find very few patterns in the guest's memory 4.512

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 40.364
Then patterns cover at least 99% of the test FS size in the guest's memory 3.376

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

When I umount "/mnt" 0.758
Then I find very few patterns in the guest's memory 3.692

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

After features/support/hooks.rb:291 0.801
After features/support/hooks.rb:75 0.000
3:8.230
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.875
And I prepare Tails for memory erasure tests 0.640
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.840
Then I find very few patterns in the guest's memory 9.078

Pattern coverage: 0.000% (0 MiB out of 1252 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:27.117
Then patterns cover at least 86% of the test FS size in the guest's memory 3.284

Pattern coverage: 94.993% (118 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory 3.811

Pattern coverage: 0.000% (0 MiB out of 1252 MiB reference memory)

# read cache
When I mount the USB drive again 0.196
And I read the content of the test FS 0.645
Then patterns cover at least 99% of the test FS size in the guest's memory 3.254

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

When I umount the USB drive 0.280
Then I find very few patterns in the guest's memory 3.690

Pattern coverage: 0.000% (0 MiB out of 1252 MiB reference memory)

After features/support/hooks.rb:291 0.816
After features/support/hooks.rb:75 0.000
2:22.748
Before features/support/hooks.rb:245 0.004
Given I have started Tails from DVD without network and logged in 9.020
And I prepare Tails for memory erasure tests 0.579
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.299
Then I find very few patterns in the guest's memory 4.154

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:26.888
Then patterns cover at least 99% of the test FS size in the guest's memory 3.127

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

When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory 3.442

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

# read cache
When I mount the USB drive again 3.312
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 3.348

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

When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory 3.123

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

After features/support/hooks.rb:291 0.768
After features/support/hooks.rb:75 0.000
46.142
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.396
And I prepare Tails for memory erasure tests 0.495
When I fill a 128 MiB file with a known pattern on the root filesystem 10.644
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.474
Then patterns cover at least 128 MiB in the guest's memory 2.305

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

When I trigger shutdown 0.979
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.830

Pattern coverage: 0.000% (0 MiB out of 1240 MiB reference memory)

After features/support/hooks.rb:291 3.441
After features/support/hooks.rb:75 0.000
6:15.473
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 5:29.461
And I prepare Tails for memory erasure tests 0.568
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.821
When I trigger shutdown 0.357
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.244

Pattern coverage: 0.000% (0 MiB out of 1170 MiB reference memory)

After features/support/hooks.rb:291 3.485
After features/support/hooks.rb:75 0.010