Project Number Date
test_Tails_ISO_21027-fix-interactive-debugging-context 8 23 Jun 2025, 22:01

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 36:57.332 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.
55.678
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 20.148
And I prepare Tails for memory erasure tests 0.448
When I start a process allocating 128 MiB of memory with a known pattern 2.228
Then patterns cover at least 128 MiB in the guest's memory 13.523

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

When I kill the allocating process 0.396
Then I find very few patterns in the guest's memory after 5 seconds 18.932

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

After features/support/hooks.rb:330 1.037
After features/support/hooks.rb:100 0.000
1:4.612
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 27.232
And I prepare Tails for memory erasure tests 4.682
And I find very few patterns in the guest's memory 7.680

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.889
Then patterns cover at least 99% of the test FS size in the guest's memory 14.630

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

When I umount "/mnt" 0.541
Then I find very few patterns in the guest's memory after 3 seconds 6.955

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:330 5.352
After features/support/hooks.rb:100 0.000
1:48.237
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.011
Given I have started Tails from DVD without network and logged in 14.886
And I prepare Tails for memory erasure tests 4.238
When I plug and mount a 128 MiB USB drive with a vfat filesystem 23.790
Then I find very few patterns in the guest's memory 6.420

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.391
Then patterns cover at least 75% of the test FS size in the guest's memory 12.025

Pattern coverage: 89.463% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.919
Then I find very few patterns in the guest's memory after 3 seconds 7.066

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 0.231
And I read the content of the test FS 0.631
Then patterns cover at least 99% of the test FS size in the guest's memory 15.433

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

When I umount the USB drive 0.806
Then I find very few patterns in the guest's memory after 3 seconds 17.395

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:330 1.391
After features/support/hooks.rb:100 0.000
3:39.972
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 1:6.539
And I prepare Tails for memory erasure tests 3.776
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 1:20.930
Then I find very few patterns in the guest's memory 8.223

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.406
Then patterns cover at least 99% of the test FS size in the guest's memory 8.872

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

When I umount the USB drive 4.543
Then I find very few patterns in the guest's memory after 3 seconds 5.869

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

# read cache
When I mount the USB drive again 8.646
And I read the content of the test FS 1.791
Then patterns cover at least 99% of the test FS size in the guest's memory 9.356

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

When I umount the USB drive 1.007
Then I find very few patterns in the guest's memory after 3 seconds 18.007

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:330 2.145
After features/support/hooks.rb:100 0.001
1:20.265
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 22.107
And I prepare Tails for memory erasure tests 1.443
When I fill a 128 MiB file with a known pattern on the root filesystem 26.450
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.994
Then patterns cover at least 128 MiB in the guest's memory 2.735

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

When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 21.514

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:330 4.255
After features/support/hooks.rb:100 0.000
28:8.565
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.049
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 26:56.423
And I prepare Tails for memory erasure tests 0.512
When I fill a 128 MiB file with a known pattern on the persistent filesystem 41.283
When I trigger shutdown 0.334
Then I find very few patterns in the guest's memory after 20 seconds 30.011

Pattern coverage: 0.000% (0 MiB out of 937 MiB reference memory)

After features/support/hooks.rb:330 4.398
After features/support/hooks.rb:100 0.206