Project Number Date
test_Tails_ISO_20666-whisperback-search 8 19 Nov 2024, 22:26

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 12:22.137 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.
25.675
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 10.366
And I prepare Tails for memory erasure tests 0.434
When I start a process allocating 128 MiB of memory with a known pattern 2.474
Then patterns cover at least 128 MiB in the guest's memory 5.139

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

When I kill the allocating process 0.386
Then I find very few patterns in the guest's memory after 3 seconds 6.874

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.976
After features/support/hooks.rb:100 0.000
28.198
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.793
And I prepare Tails for memory erasure tests 0.508
And I find very few patterns in the guest's memory 3.879

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.399
Then patterns cover at least 99% of the test FS size in the guest's memory 4.186

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

When I umount "/mnt" 1.255
Then I find very few patterns in the guest's memory after 3 seconds 7.175

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 0.974
After features/support/hooks.rb:100 0.000
55.255
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.791
And I prepare Tails for memory erasure tests 0.438
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.475
Then I find very few patterns in the guest's memory 3.813

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.321
Then patterns cover at least 75% of the test FS size in the guest's memory 4.468

Pattern coverage: 91.667% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.174
Then I find very few patterns in the guest's memory after 3 seconds 6.778

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 0.380
And I read the content of the test FS 1.856
Then patterns cover at least 99% of the test FS size in the guest's memory 4.005

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.203
Then I find very few patterns in the guest's memory after 3 seconds 6.548

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 1.115
After features/support/hooks.rb:100 0.000
1:24.618
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.345
And I prepare Tails for memory erasure tests 0.494
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.305
Then I find very few patterns in the guest's memory 3.001

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.416
Then patterns cover at least 99% of the test FS size in the guest's memory 3.178

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

When I umount the USB drive 2.055
Then I find very few patterns in the guest's memory after 3 seconds 6.053

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 6.250
And I read the content of the test FS 2.730
Then patterns cover at least 99% of the test FS size in the guest's memory 3.570

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.971
Then I find very few patterns in the guest's memory after 3 seconds 6.243

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 1.094
After features/support/hooks.rb:100 0.000
51.591
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.480
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the root filesystem 15.574
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.369
Then patterns cover at least 128 MiB in the guest's memory 3.791

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

When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 20.886

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.618
After features/support/hooks.rb:100 0.000
8:16.798
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:31.172
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 23.949
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.215

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.578
After features/support/hooks.rb:100 0.012