MCE machine check exceptions - status, tools?
Hello, By searching the net I was only able to find that better support for 9.0 is on its way. So I'd like to ask if MCEs (like ECC-related messages from, say Supermicro boards) are being already processed by the kernel. Are there any (plans for) tools to handle and process these messages in userland? The amount of memory and memory modules keeps increasing, so MCE logging for non A-brand hardware (these trigger LEDs and/or tools from firmware) appears to gain increasing importance, too. I'd be grateful for hints, URLs, tips etc. If sent as private mails, I'll post a summary back to the list. TIA, Volker -- Volker T. Mueller Continum AG Bismarckallee 7d 79098 Freiburg i. Br. Tel. +49 761 21711171 Fax. +49 761 21711198 http://www.continum.net Sitz der Gesellschaft: Freiburg im Breisgau Registergericht: Amtsgericht Freiburg, HRB 6866 Vorstand: Rolf Mathis, Volker T. Mueller Vorsitzender d. Aufsichtsrats: Prof. Dr. Karl-F. Fischbach ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: MCE machine check exceptions - status, tools?
on 28/07/2010 12:31 V. T. Mueller, Continum said the following: Hello, By searching the net I was only able to find that better support for 9.0 is on its way. So I'd like to ask if MCEs (like ECC-related messages from, say Supermicro boards) are being already processed by the kernel. Are there any (plans for) tools to handle and process these messages in userland? The amount of memory and memory modules keeps increasing, so MCE logging for non A-brand hardware (these trigger LEDs and/or tools from firmware) appears to gain increasing importance, too. I'd be grateful for hints, URLs, tips etc. MCA support is in current and stable/8. I believe that it's enabled by default, so there is not much to configure or to do except watching for MCE reports in system log (or via hw.mca.count). That's for correctable MCEs though, non-correctable would result in panic. See sys/x86/x86/mca.c code for details. John Baldwin has a tool that produces more human-friendly description of the exceptions should you ever get one. -- Andriy Gapon ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
