Project Number Date
test_Tails_ISO_21691-gitlab-triage-use-trusted-image 6 25 Jul 2026, 21:22

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 8:3.894 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.
18.353
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 6.596
And I prepare Tails for memory erasure tests 0.388
When I start a process allocating 128 MiB of memory with a known pattern 2.273
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.993

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

When I kill the allocating process 0.212
Then I find very few patterns in the guest's memory after 5 seconds 6.888

Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)

After features/support/hooks.rb:339 1.127
After features/support/hooks.rb:108 0.000
17.889
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.773
And I prepare Tails for memory erasure tests 0.453
And I find very few patterns in the guest's memory 1.870

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.540
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002

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

When I umount "/mnt" 0.379
Then I find very few patterns in the guest's memory after 3 seconds 4.868

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 0.968
After features/support/hooks.rb:108 0.000
32.522
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.677
And I prepare Tails for memory erasure tests 0.323
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.660
Then I find very few patterns in the guest's memory 1.837

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.752
Then patterns cover at least 75% of the test FS size in the guest's memory 2.101

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

When I umount the USB drive 0.759
Then I find very few patterns in the guest's memory after 3 seconds 4.734

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

# read cache
When I mount the USB drive again 0.144
And I read the content of the test FS 0.387
Then patterns cover at least 99% of the test FS size in the guest's memory 1.912

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

When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 4.786

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 0.797
After features/support/hooks.rb:108 0.000
59.845
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 6.863
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.969
Then I find very few patterns in the guest's memory 1.710

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.339
Then patterns cover at least 99% of the test FS size in the guest's memory 1.964

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

When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 4.638

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# read cache
When I mount the USB drive again 4.769
And I read the content of the test FS 0.322
Then patterns cover at least 99% of the test FS size in the guest's memory 1.955

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

When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory after 3 seconds 4.825

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 1.220
After features/support/hooks.rb:108 0.000
1:2.040
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.885
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the root filesystem 30.887
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.739
Then patterns cover at least 128 MiB in the guest's memory 1.610

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.547

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 3.608
After features/support/hooks.rb:108 0.000
4:53.243
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.511
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.335
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.018

Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)

After features/support/hooks.rb:339 3.545
After features/support/hooks.rb:108 0.013