Project Number Date
test_Tails_ISO_21769-fix-chutney-configure-freeze 1 30 Sep 2026, 17:50

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 8:8.200 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.
21.243
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 6.396
And I prepare Tails for memory erasure tests 0.370
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 4.128

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

When I kill the allocating process 0.377
Then I find very few patterns in the guest's memory after 5 seconds 7.723

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

After features/support/hooks.rb:339 0.946
After features/support/hooks.rb:108 0.000
21.045
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 6.355
And I prepare Tails for memory erasure tests 0.479
And I find very few patterns in the guest's memory 3.158

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.749
Then patterns cover at least 99% of the test FS size in the guest's memory 3.185

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

When I umount "/mnt" 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.627

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

After features/support/hooks.rb:339 0.671
After features/support/hooks.rb:108 0.000
39.038
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 6.901
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.697
Then I find very few patterns in the guest's memory 2.756

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.831
Then patterns cover at least 75% of the test FS size in the guest's memory 3.162

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

When I umount the USB drive 0.896
Then I find very few patterns in the guest's memory after 3 seconds 6.376

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.591
Then patterns cover at least 99% of the test FS size in the guest's memory 3.121

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

When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory after 3 seconds 5.719

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 0.743
After features/support/hooks.rb:108 0.000
1:7.192
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 7.803
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.010
Then I find very few patterns in the guest's memory 2.635

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.069
Then patterns cover at least 99% of the test FS size in the guest's memory 4.146

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

When I umount the USB drive 0.597
Then I find very few patterns in the guest's memory after 3 seconds 5.866

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

# read cache
When I mount the USB drive again 3.707
And I read the content of the test FS 0.331
Then patterns cover at least 99% of the test FS size in the guest's memory 2.627

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

When I umount the USB drive 0.378
Then I find very few patterns in the guest's memory after 3 seconds 6.615

Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)

After features/support/hooks.rb:339 0.816
After features/support/hooks.rb:108 0.000
45.516
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 6.905
And I prepare Tails for memory erasure tests 0.461
When I fill a 128 MiB file with a known pattern on the root filesystem 12.779
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.451
Then patterns cover at least 128 MiB in the guest's memory 2.541

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

When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.370

Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)

After features/support/hooks.rb:339 3.573
After features/support/hooks.rb:108 0.000
4:54.163
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:22.547
And I prepare Tails for memory erasure tests 0.280
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.382
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.949

Pattern coverage: 0.000% (0 MiB out of 1440 MiB reference memory)

After features/support/hooks.rb:339 3.792
After features/support/hooks.rb:108 0.010