<div dir="ltr">Hi, <div><br></div><div>recently there was a number of HMI logging improvements which may help to isolate the source of HMI errors, but troubleshooting MCs like below is also challenging. <br>Can we have additional logging for MCs also? </div><div><br></div><div><ol style="margin:0px;padding:0px 0px 0px 50px;color:rgb(0,0,0);font-family:monospace;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(235,244,251);text-decoration-style:initial;text-decoration-color:initial"><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 02:56:33 host kernel: Severe Machine check interrupt [Recovered]</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 02:56:33 host kernel:   Initiator: CPU</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 02:56:33 host kernel:   Error type: ERAT [Multihit]</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 02:56:33 host kernel:     Effective address: c00003eefc12f018</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 03:04:19 host kernel: Severe Machine check interrupt [Recovered]</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 03:04:19 host kernel:   Initiator: CPU</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 03:04:19 host kernel:   Error type: ERAT [Multihit]</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top">Feb 15 03:04:19 host kernel:     Effective address: c00003eefc12f018</div></li><li style="margin:0px;padding:0px;list-style:decimal outside;font-weight:normal;vertical-align:top"><div style="margin:0px;padding:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:1em;line-height:1.2em;font-family:monospace;background:none;vertical-align:top"> </div></li></ol><br><div><br></div><div><div>* [282d5fee5c4f](<a href="https://github.com/open-power/skiboot/commit/282d5fee5c4f">https://github.com/open-power/skiboot/commit/282d5fee5c4f</a>) core/hmi: Use pr_fmt macro for tagging log messages</div><div>* [c531ff957669](<a href="https://github.com/open-power/skiboot/commit/c531ff957669">https://github.com/open-power/skiboot/commit/c531ff957669</a>) opal/hmi: HMI logging with location code info.</div><div>* [b33ed1e6b6b0](<a href="https://github.com/open-power/skiboot/commit/b33ed1e6b6b0">https://github.com/open-power/skiboot/commit/b33ed1e6b6b0</a>) core/hmi: Do not display FIR details if none of the bits are set.</div><div>* [45a961515be6](<a href="https://github.com/open-power/skiboot/commit/45a961515be6">https://github.com/open-power/skiboot/commit/45a961515be6</a>) core/hmi: Display chip location code while displaying core FIR.</div></div></div><div><br></div><div><br></div><div>thanks, </div><div><br></div><div>regards,</div><div>Sergey </div><div>YADRO</div></div>