Incident: 'Drunk' Roomba Robot Vacuums Malfunction After Software Update

Published Date: 2021-03-01

Postmortem Analysis
Timeline 1. The software failure incident with the Roomba robot vacuums happened in February 2021. [110884]
System 1. iRobot Roomba i7 and s9 models [110884]
Responsible Organization 1. iRobot - The software failure incident with the Roomba robot vacuums was caused by a software update released by iRobot, the maker of the devices [110884].
Impacted Organization 1. Owners of Roomba robot vacuums [110884]
Software Causes 1. The software causes of the failure incident with the Roomba robot vacuums included a software update by iRobot that led to issues such as the devices "spinning around", constantly recharging or not charging at all, moving in strange directions, and exhibiting erratic behavior [110884].
Non-software Causes 1. Battery issues such as constantly recharging or not charging at all [110884] 2. Mechanical problems like spinning around, bumping into furniture, and moving in strange patterns [110884]
Impacts 1. Roomba robot vacuums were reported to exhibit erratic behavior such as spinning around, constantly recharging or not charging at all, moving in strange directions, and bumping into furniture [110884]. 2. Customers complained about their Roombas acting like they were "drunk on a two-day binge" and being unable to return home [110884]. 3. The software update caused Roombas to recharge multiple times while cleaning one room for a very short duration, leading to inefficient cleaning [110884]. 4. The software failure incident resulted in iRobot acknowledging issues with a limited number of i7 and s9 Roomba models, prompting the need for a software rollback and a future update to prevent similar issues [110884].
Preventions 1. Ensuring thorough testing of software updates before rolling them out to all devices could have prevented the software failure incident [110884]. 2. Implementing a more robust quality assurance process to catch any potential issues before updates are released to customers could have helped prevent the problems experienced by the Roomba owners [110884]. 3. Providing a quicker response and resolution to the reported issues by iRobot could have mitigated the impact of the software failure incident and improved customer satisfaction [110884].
Fixes 1. Rolling back the robot's software update for impacted customers [110884]. 2. Implementing an update to ensure similar issues are avoided in the future for all customers [110884].
References 1. iRobot (the devices' maker) [110884]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) In the provided article [110884], the software failure incident related to the iRobot Roomba robot vacuums is specific to iRobot as the maker of the affected devices. The article mentions that iRobot acknowledged that its software update caused problems for a limited number of its i7 and s9 Roomba models. This indicates that the software failure incident happened within the same organization, iRobot, affecting multiple models of their robot vacuums. (b) The article [110884] does not provide information about similar incidents happening at other organizations or with their products and services. Therefore, there is no mention of the software failure incident occurring at multiple organizations in this specific case.
Phase (Design/Operation) design (a) The software failure incident in the article is related to the design phase. The article mentions that the issues with the Roomba robot vacuums, such as spinning around, constantly recharging, moving in strange directions, and not charging properly, were caused by a software update released by iRobot. The update introduced problems for a limited number of i7 and s9 Roomba models, indicating that the failure was due to contributing factors introduced during the development phase [110884]. (b) The article does not provide information about the software failure incident being related to the operation phase or misuse of the system.
Boundary (Internal/External) within_system, outside_system (a) within_system: The software failure incident with the iRobot Roomba vacuums was caused by a software update released by iRobot. The update led to issues such as the devices "spinning around", constantly recharging or not charging at all, and moving in strange directions [110884]. (b) outside_system: The software failure incident was also influenced by external factors such as customer complaints on social media platforms like Twitter and Reddit. Customers reported problems with their Roomba vacuums behaving erratically after the software update, indicating that external feedback played a role in highlighting the issue [110884].
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case appears to be related to non-human actions. The article mentions that owners of Roomba robot vacuums complained about the devices behaving erratically following a software update. Issues included the machines "spinning around", moving in strange directions, and constantly recharging or not charging at all. iRobot acknowledged that the update had caused problems for a limited number of its i7 and s9 Roomba models and mentioned that a fix would take several weeks to roll out worldwide. The company asked affected customers to share the serial numbers of their devices so they could remove the problematic update. Additionally, iRobot stated that they were implementing an update to prevent similar issues in the future, indicating that the failure was due to non-human actions introduced through the software update [110884]. (b) The article does not provide specific information indicating that the software failure incident was due to contributing factors introduced by human actions.
Dimension (Hardware/Software) hardware, software (a) The software failure incident related to hardware: - The article mentions that owners of Roomba robot vacuums complained about the devices appearing "drunk" following a software update. Problems included the machines "spinning around", constantly recharging or not charging at all, and moving in strange directions [110884]. - One of the issues reported was the Roomba recharging five times while cleaning one room but only for a total of eight minutes, indicating a potential hardware-related issue with the charging mechanism [110884]. (b) The software failure incident related to software: - The article explicitly states that the software update from iRobot caused problems for "a limited number" of its i7 and s9 Roomba models, indicating a software-related failure [110884]. - iRobot acknowledged the software update had caused issues and mentioned working with impacted customers to roll back the robot's software and implementing an update to avoid similar issues in the future, highlighting a software-related fix being deployed [110884].
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident in this case is non-malicious. The article reports that the issues with the Roomba robot vacuums were caused by a software update released by iRobot, the devices' maker. The update led to problems such as the vacuums "spinning around", constantly recharging or not charging at all, and moving in strange directions. iRobot acknowledged that the update had caused problems for a limited number of its i7 and s9 Roomba models and mentioned that a fix would take several weeks to roll out worldwide. The company also asked affected customers to share the serial numbers of their devices so that the most recent update could be removed [110884].
Intent (Poor/Accidental Decisions) poor_decisions (a) The software failure incident related to the Roomba robot vacuums can be attributed to poor decisions made during a software update by iRobot. The update caused problems for a limited number of i7 and s9 Roomba models, leading to issues such as the devices "spinning around", constantly recharging or not charging at all, and moving in strange directions. iRobot acknowledged that the update had caused these problems and mentioned that a fix would take several weeks to roll out worldwide. They also asked affected customers to share the serial numbers of their devices so they could remove the problematic update [110884].
Capability (Incompetence/Accidental) development_incompetence, accidental (a) The software failure incident related to development incompetence is evident in the article as it mentions how a software update by iRobot caused problems for a "limited number" of its i7 and s9 Roomba models. The update led to issues such as the devices "spinning around", constantly recharging or not charging at all, and moving in strange directions. The company acknowledged the problems caused by their update and mentioned that a fix would take "several weeks" to roll out worldwide [110884]. (b) The software failure incident related to accidental factors is also highlighted in the article. The article mentions that updates are usually intended to add new features or fix security bugs in smart products, but they don't always go as planned and can sometimes introduce new bugs accidentally. This accidental introduction of new bugs can lead to issues like the ones experienced by the Roomba owners after the software update [110884].
Duration temporary The software failure incident reported in Article 110884 can be categorized as a temporary failure. The article mentions that the issues with the Roomba robot vacuums, such as spinning around, constantly recharging, moving in strange directions, and not charging at all, were caused by a software update by iRobot. The company acknowledged that the update had caused problems for a limited number of its i7 and s9 Roomba models. iRobot stated that they are working on a fix that would take several weeks to roll out worldwide and are asking affected customers to share their serial numbers so they can remove the problematic update. Additionally, impacted customers had their robot's software rolled back, and an update was being implemented to avoid similar issues in the future. This indicates that the software failure incident was temporary and caused by specific circumstances related to the software update introduced by iRobot [110884].
Behaviour crash, value, other (a) crash: The software failure incident in the article is related to a crash where the Roomba robot vacuums were reported to be "spinning around", constantly recharging or not charging at all, moving in strange directions, and exhibiting erratic behavior following a software update [110884]. (b) omission: The software failure incident does not specifically mention any instances of the system omitting to perform its intended functions at an instance(s). (c) timing: The software failure incident does not relate to the system performing its intended functions correctly but too late or too early. (d) value: The software failure incident is related to the system performing its intended functions incorrectly, such as the Roomba vacuums behaving like they are "drunk" and exhibiting abnormal behavior after the software update [110884]. (e) byzantine: The software failure incident does not involve the system behaving erroneously with inconsistent responses and interactions. (f) other: The other behavior observed in the software failure incident is the Roomba vacuums recharging multiple times while cleaning one room but only for a total of eight minutes, which is not the expected behavior [110884].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence property, non-human (d) property: People's material goods, money, or data was impacted due to the software failure The software failure incident involving iRobot's Roomba robot vacuums led to complaints from owners about various issues such as the devices "spinning around", constantly recharging or not charging at all, moving in strange directions, and behaving erratically [110884]. This software update problem affected the functionality of the Roomba vacuums, impacting the owners' ability to use the devices effectively and potentially causing frustration and inconvenience.
Domain other (a) The software failure incident reported in the news article is related to the technology industry, specifically the smart home technology sector. The incident involves iRobot's Roomba robot vacuums experiencing issues after a software update, causing them to behave erratically and prompting complaints from owners [110884].

Sources

Back to List