Project Number Date
test_Tails_ISO_stable 4646 30 Jan 2024, 12:57

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 14:34.974 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.
16.735
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.708
And I prepare Tails for memory erasure tests 0.456
When I start a process allocating 128 MiB of memory with a known pattern 1.265
Then patterns cover at least 128 MiB in the guest's memory 3.449

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

When I kill the allocating process 0.253
Then I find very few patterns in the guest's memory 3.603

Pattern coverage: 0.000% (0 MiB out of 1222 MiB reference memory)

After features/support/hooks.rb:291 0.645
After features/support/hooks.rb:75 0.000
59.999
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.729
And I prepare Tails for memory erasure tests 0.492
And I find very few patterns in the guest's memory 4.240

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.875
Then patterns cover at least 99% of the test FS size in the guest's memory 4.075

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

When I umount "/mnt" 0.271
Then I find very few patterns in the guest's memory 4.314

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

After features/support/hooks.rb:291 0.757
After features/support/hooks.rb:75 0.000
3:25.539
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.553
And I prepare Tails for memory erasure tests 0.458
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.788
Then I find very few patterns in the guest's memory 4.469

Pattern coverage: 0.000% (0 MiB out of 1188 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:51.310
Then patterns cover at least 86% of the test FS size in the guest's memory 2.993

Pattern coverage: 94.366% (117 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory 3.512

Pattern coverage: 0.000% (0 MiB out of 1188 MiB reference memory)

# read cache
When I mount the USB drive again 0.527
And I read the content of the test FS 0.717
Then patterns cover at least 99% of the test FS size in the guest's memory 2.962

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

When I umount the USB drive 0.253
Then I find very few patterns in the guest's memory 3.570

Pattern coverage: 0.000% (0 MiB out of 1188 MiB reference memory)

After features/support/hooks.rb:291 0.736
After features/support/hooks.rb:75 0.000
2:45.975
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.852
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.329
Then I find very few patterns in the guest's memory 3.287

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:49.190
Then patterns cover at least 99% of the test FS size in the guest's memory 2.602

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

When I umount the USB drive 0.647
Then I find very few patterns in the guest's memory 3.288

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

# read cache
When I mount the USB drive again 3.637
And I read the content of the test FS 0.389
Then patterns cover at least 99% of the test FS size in the guest's memory 2.592

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

When I umount the USB drive 0.387
Then I find very few patterns in the guest's memory 3.298

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

After features/support/hooks.rb:291 0.873
After features/support/hooks.rb:75 0.000
52.162
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.161
And I prepare Tails for memory erasure tests 0.391
When I fill a 128 MiB file with a known pattern on the root filesystem 17.522
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.356
Then patterns cover at least 128 MiB in the guest's memory 2.421

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

When I trigger shutdown 0.573
And I wait 20 seconds 20.013

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.721

Pattern coverage: 0.000% (0 MiB out of 1225 MiB reference memory)

After features/support/hooks.rb:291 3.415
After features/support/hooks.rb:75 0.000
6:14.561
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 5:32.016
And I prepare Tails for memory erasure tests 0.485
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.612
When I trigger shutdown 0.253
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.174

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

After features/support/hooks.rb:291 3.470
After features/support/hooks.rb:75 0.012