Project Number Date
test_Tails_ISO_devel 3906 15 Jul 2025, 16:07

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 43 1 7 0 0 51 5 1 6 15:7.709 Failed
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.
36.884
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 9.531
And I prepare Tails for memory erasure tests 4.702
When I start a process allocating 128 MiB of memory with a known pattern 3.108
Then patterns cover at least 128 MiB in the guest's memory 4.974

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

When I kill the allocating process 0.280
Then I find very few patterns in the guest's memory after 5 seconds 14.286

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:330 1.791
After features/support/hooks.rb:100 0.000
41.376
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 9.049
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 11.146

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.057
Then patterns cover at least 99% of the test FS size in the guest's memory 3.438

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

When I umount "/mnt" 0.649
Then I find very few patterns in the guest's memory after 3 seconds 14.517

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:330 1.170
After features/support/hooks.rb:100 0.000
1:19.278
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 14.950
And I prepare Tails for memory erasure tests 1.231
When I plug and mount a 128 MiB USB drive with a vfat filesystem 12.678
Then I find very few patterns in the guest's memory 11.108

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.532
Then patterns cover at least 75% of the test FS size in the guest's memory 3.933

Pattern coverage: 89.478% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.904
Then I find very few patterns in the guest's memory after 3 seconds 10.089

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

# read cache
When I mount the USB drive again 0.290
And I read the content of the test FS 0.542
Then patterns cover at least 99% of the test FS size in the guest's memory 3.479

Pattern coverage: 100.682% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.584
Then I find very few patterns in the guest's memory after 3 seconds 14.952

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:330 1.044
After features/support/hooks.rb:100 0.000
1:18.508
Scenario Erasure of read and write disk caches on unmount: LUKS-encrypted ext4
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Steps
Given I have started Tails from DVD without network and logged in 15.270
And I prepare Tails for memory erasure tests 0.954
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.231
Then I find very few patterns in the guest's memory 3.613

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.263
Then patterns cover at least 99% of the test FS size in the guest's memory 12.174
97.770% of the test FS size (91.490234375 MiB) has the pattern, but more than 99.000% was expected.
<false> is not true. (Test::Unit::AssertionFailedError)
./features/step_definitions/erase_memory.rb:170:in `/^patterns cover at least (\d+)% of the test FS size in the guest's memory$/'
features/erase_memory.feature:54:in `Then patterns cover at least 99% of the test FS size in the guest's memory'
Output 1

Pattern coverage: 97.770% (89 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.000
Then I find very few patterns in the guest's memory after 3 seconds 0.000
# read cache
When I mount the USB drive again 0.000
And I read the content of the test FS 0.000
Then patterns cover at least 99% of the test FS size in the guest's memory 0.000
When I umount the USB drive 0.000
Then I find very few patterns in the guest's memory after 3 seconds 0.000
After features/support/hooks.rb:330 5.249

SCENARIO FAILED: 'Erasure of read and write disk caches on unmount: LUKS-encrypted ext4' (at time 00:46:57)

Boot log: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3906/artifact/build-artifacts/00:46:57_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.file_content_var_log_boot.log

Screenshot: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3906/artifact/build-artifacts/00:46:57_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.png

Video: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3906/artifact/build-artifacts/00:46:57_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.mkv

Systemd journal: https://jenkins.tails.boum.org/job/test_Tails_ISO_devel/3906/artifact/build-artifacts/00:46:57_Erasure_of_read_and_write_disk_caches_on_unmount:_LUKS-encrypted_ext4.journal

After features/support/hooks.rb:100 0.002
58.943
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 14.156
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the root filesystem 19.097
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.072
Then patterns cover at least 128 MiB in the guest's memory 2.268

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 20.917

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:330 3.556
After features/support/hooks.rb:100 0.000
10:12.718
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 9:27.139
And I prepare Tails for memory erasure tests 0.644
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.751
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.170

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:330 3.578
After features/support/hooks.rb:100 0.014