Project Number Date
test_Tails_ISO_20263-remote-shell-debug-logging 35 04 Apr 2025, 21:39

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 11:21.926 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.
26.107
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.896
And I prepare Tails for memory erasure tests 0.482
When I start a process allocating 128 MiB of memory with a known pattern 5.826
Then patterns cover at least 128 MiB in the guest's memory 3.150

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

When I kill the allocating process 1.045
Then I find very few patterns in the guest's memory after 5 seconds 7.706

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:330 0.640
After features/support/hooks.rb:100 0.000
24.172
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.897
And I prepare Tails for memory erasure tests 0.477
And I find very few patterns in the guest's memory 3.757

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.271
Then patterns cover at least 99% of the test FS size in the guest's memory 2.727

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

When I umount "/mnt" 0.742
Then I find very few patterns in the guest's memory after 3 seconds 6.298

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:330 0.657
After features/support/hooks.rb:100 0.000
46.248
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.938
And I prepare Tails for memory erasure tests 0.493
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.081
Then I find very few patterns in the guest's memory 3.035

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.398
Then patterns cover at least 75% of the test FS size in the guest's memory 4.112

Pattern coverage: 89.781% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.061
Then I find very few patterns in the guest's memory after 3 seconds 6.508

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

# read cache
When I mount the USB drive again 0.339
And I read the content of the test FS 0.514
Then patterns cover at least 99% of the test FS size in the guest's memory 3.907

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

When I umount the USB drive 0.365
Then I find very few patterns in the guest's memory after 3 seconds 6.490

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:330 0.744
After features/support/hooks.rb:100 0.000
1:13.517
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.918
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.596
Then I find very few patterns in the guest's memory 2.667

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.698
Then patterns cover at least 99% of the test FS size in the guest's memory 2.740

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

When I umount the USB drive 0.803
Then I find very few patterns in the guest's memory after 3 seconds 5.384

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# read cache
When I mount the USB drive again 4.331
And I read the content of the test FS 1.234
Then patterns cover at least 99% of the test FS size in the guest's memory 3.143

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 5.986

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:330 0.964
After features/support/hooks.rb:100 0.000
53.128
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.020
And I prepare Tails for memory erasure tests 0.459
When I fill a 128 MiB file with a known pattern on the root filesystem 18.934
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.915
Then patterns cover at least 128 MiB in the guest's memory 2.978

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.805

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:330 3.521
After features/support/hooks.rb:100 0.000
7:38.751
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:54.328
And I prepare Tails for memory erasure tests 0.624
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.614
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.168

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

After features/support/hooks.rb:330 3.503
After features/support/hooks.rb:100 0.012