Project Number Date
test_Tails_ISO_devel 3352 16 Apr 2024, 21:46

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 10:35.313 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.
19.264
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 7.981
And I prepare Tails for memory erasure tests 0.699
When I start a process allocating 128 MiB of memory with a known pattern 1.209
Then patterns cover at least 128 MiB in the guest's memory 4.175

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

When I kill the allocating process 0.667
Then I find very few patterns in the guest's memory 4.530

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

After features/support/hooks.rb:305 1.018
After features/support/hooks.rb:89 0.000
24.537
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.086
And I prepare Tails for memory erasure tests 0.391
And I find very few patterns in the guest's memory 4.691

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.684
Then patterns cover at least 99% of the test FS size in the guest's memory 4.292

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

When I umount "/mnt" 0.455
Then I find very few patterns in the guest's memory 4.935

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:305 0.913
After features/support/hooks.rb:89 0.000
50.014
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.595
And I prepare Tails for memory erasure tests 0.401
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.077
Then I find very few patterns in the guest's memory 5.605

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.439
Then patterns cover at least 86% of the test FS size in the guest's memory 4.453

Pattern coverage: 88.845% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.935
Then I find very few patterns in the guest's memory 4.314

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 4.119
Then patterns cover at least 99% of the test FS size in the guest's memory 4.394

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

When I umount the USB drive 1.803
Then I find very few patterns in the guest's memory 4.653

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:305 1.773
After features/support/hooks.rb:89 0.000
1:4.786
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.560
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.574
Then I find very few patterns in the guest's memory 4.122

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.696
Then patterns cover at least 99% of the test FS size in the guest's memory 3.787

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

When I umount the USB drive 0.807
Then I find very few patterns in the guest's memory 3.805

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 4.373
And I read the content of the test FS 1.365
Then patterns cover at least 99% of the test FS size in the guest's memory 3.460

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

When I umount the USB drive 0.940
Then I find very few patterns in the guest's memory 3.908

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:305 0.947
After features/support/hooks.rb:89 0.000
52.320
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.163
And I prepare Tails for memory erasure tests 0.519
When I fill a 128 MiB file with a known pattern on the root filesystem 15.508
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.691
Then patterns cover at least 128 MiB in the guest's memory 3.235

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.168

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

After features/support/hooks.rb:305 3.519
After features/support/hooks.rb:89 0.000
7:4.390
Before features/support/hooks.rb:259 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:20.809
And I prepare Tails for memory erasure tests 0.452
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.809
When I trigger shutdown 0.010
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.289

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

After features/support/hooks.rb:305 3.587
After features/support/hooks.rb:89 0.018