Project Number Date
test_Tails_ISO_make-cloner-findable-via-backup-keyword 3 23 Oct 2026, 02:40

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 7:16.980 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.
19.230
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.149
And I prepare Tails for memory erasure tests 0.324
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.899

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.203
Then I find very few patterns in the guest's memory after 5 seconds 7.462

Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)

After features/support/hooks.rb:339 0.956
After features/support/hooks.rb:108 0.000
19.445
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.178
And I prepare Tails for memory erasure tests 0.327
And I find very few patterns in the guest's memory 2.634

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.553
Then patterns cover at least 99% of the test FS size in the guest's memory 2.919

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

When I umount "/mnt" 0.423
Then I find very few patterns in the guest's memory after 3 seconds 5.407

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

After features/support/hooks.rb:339 0.756
After features/support/hooks.rb:108 0.000
36.143
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.195
And I prepare Tails for memory erasure tests 0.296
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.255
Then I find very few patterns in the guest's memory 2.711

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.483
Then patterns cover at least 75% of the test FS size in the guest's memory 3.138

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.672
Then I find very few patterns in the guest's memory after 3 seconds 5.606

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

# read cache
When I mount the USB drive again 0.163
And I read the content of the test FS 0.457
Then patterns cover at least 99% of the test FS size in the guest's memory 2.941

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.476
Then I find very few patterns in the guest's memory after 3 seconds 5.745

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

After features/support/hooks.rb:339 0.593
After features/support/hooks.rb:108 0.000
1:0.999
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.264
And I prepare Tails for memory erasure tests 0.306
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.724
Then I find very few patterns in the guest's memory 2.577

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.265
Then patterns cover at least 99% of the test FS size in the guest's memory 2.657

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

When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 5.552

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

# read cache
When I mount the USB drive again 4.052
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 2.668

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

When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 5.517

Pattern coverage: 0.000% (0 MiB out of 1388 MiB reference memory)

After features/support/hooks.rb:339 0.758
After features/support/hooks.rb:108 0.000
44.369
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.189
And I prepare Tails for memory erasure tests 0.337
When I fill a 128 MiB file with a known pattern on the root filesystem 13.338
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.603
Then patterns cover at least 128 MiB in the guest's memory 2.128

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

When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.764

Pattern coverage: 0.000% (0 MiB out of 1385 MiB reference memory)

After features/support/hooks.rb:339 3.633
After features/support/hooks.rb:108 0.000
4:16.791
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:45.347
And I prepare Tails for memory erasure tests 0.220
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.986
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.229

Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)

After features/support/hooks.rb:339 3.379
After features/support/hooks.rb:108 0.009