From nobody Fri Jun 27 20:25:14 2025 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4bTRrG0RJnz60Ckt for ; Fri, 27 Jun 2025 20:25:18 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4bTRrD3SZxz3QqS for ; Fri, 27 Jun 2025 20:25:16 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Authentication-Results: mx1.freebsd.org; dkim=none ("invalid DKIM record") header.d=troutmask.apl.washington.edu header.s=troutmask header.b=O6XErB8g; spf=none (mx1.freebsd.org: domain of sgk@troutmask.apl.washington.edu has no SPF policy when checking 128.95.76.21) smtp.mailfrom=sgk@troutmask.apl.washington.edu; dmarc=fail reason="No valid SPF" header.from=washington.edu (policy=none) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.18.1/8.18.1) with ESMTP id 55RKPEVm001897 for ; Fri, 27 Jun 2025 13:25:14 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) DKIM-Filter: OpenDKIM Filter v2.10.3 troutmask.apl.washington.edu 55RKPEVm001897 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=troutmask.apl.washington.edu; s=troutmask; t=1751055914; bh=gZoWWxT+JrZcfihOL33rdJI+CtvHJDs1yF9OCqYxfT8=; h=Date:From:To:Subject:Reply-To:From; b=O6XErB8gJVmQIFEgCjH2B8C2ymDuyUdG90vtKJjKepDhAaM+L6zrMRY/qZEOHerEv VAlsnuwqQ46mBOQ71QBiLYgfswi5eS9LfGHDshxF6wWJ6mSfTwetwaHk8Rg5cKZFas rV1GhkTxHSrRrBNZ34CfGrQ/oq4t+gQEH4wxUAO+I40jKFOrwiwKNIRx5KN64vmQg8 4AJKOdAujHSPtpGfKRclJokmtASLXhSXx95egH56LFcLGKzH2yJVepmn7CZyuzhKV2 8/H1UVT0gPtd/pk+VgNrDwcLxyYAtfT7q6g/KGxxMS2d2gutmSElKfEaaGyTHnpbAk wE03TKCQ37TpQ== Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.18.1/8.18.1/Submit) id 55RKPEtR001896 for freebsd-current@freebsd.org; Fri, 27 Jun 2025 13:25:14 -0700 (PDT) (envelope-from sgk) Date: Fri, 27 Jun 2025 13:25:14 -0700 From: Steve Kargl To: freebsd-current@freebsd.org Subject: Panic with "Unrecoverable machine check exception" Message-ID: Reply-To: sgk@troutmask.apl.washington.edu List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spamd-Result: default: False [-1.15 / 15.00]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_SPAM_LONG(1.00)[1.000]; NEURAL_HAM_MEDIUM(-0.95)[-0.946]; RCVD_IN_DNSWL_MED(-0.20)[128.95.76.21:from]; MIME_GOOD(-0.10)[text/plain]; DMARC_POLICY_SOFTFAIL(0.10)[washington.edu : No valid SPF,none]; TO_MATCH_ENVRCPT_ALL(0.00)[]; REPLYTO_DOM_NEQ_TO_DOM(0.00)[]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; DKIM_TRACE(0.00)[troutmask.apl.washington.edu:~]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; R_SPF_NA(0.00)[no SPF record]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:73, ipnet:128.95.0.0/16, country:US]; REPLYTO_ADDR_EQ_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_DKIM_PERMFAIL(0.00)[troutmask.apl.washington.edu:s=troutmask]; RCVD_COUNT_TWO(0.00)[2]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; TO_DN_NONE(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; HAS_REPLYTO(0.00)[sgk@troutmask.apl.washington.edu] X-Rspamd-Queue-Id: 4bTRrD3SZxz3QqS X-Spamd-Bar: - Never seen this type of panic. I can upload core.txt.4 and info.4 to freefall if someone wants more details. __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 57 __asm("movq %%gs:%c1,%0" : "=r" (td) (kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 td = #1 doadump (textdump=textdump@entry=1) at /usr/src/sys/kern/kern_shutdown.c:399 error = 0 coredump = #2 0xffffffff80676e30 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:519 once = 0 __pc = 0x0 #3 0xffffffff80677367 in vpanic ( fmt=0xffffffff80abdb94 "Unrecoverable machine check exception", ap=ap@entry=0xfffffe001c024ed0) at /usr/src/sys/kern/kern_shutdown.c:974 buf = "Unrecoverable machine check exception", '\000' __pc = 0x0 __pc = 0x0 __pc = 0x0 other_cpus = {__bits = {251, 0 }} td = 0xfffff80004601000 bootopt = newpanic = #4 0xffffffff80677193 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:887 ap = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0xfffffe001c024f00, reg_save_area = 0xfffffe001c024ea0}} #5 0xffffffff809d391b in mca_intr () at /usr/src/sys/x86/x86/mca.c:1540 recoverable = false mcg_status = count = lmcs = #6 No locals. #7 mi_switch (flags=flags@entry=262) at /usr/src/sys/kern/kern_synch.c:537 __pc = 0x0 __pc = 0x0 __pc = 0x0 __pc = 0x0 __pc = 0x0 td = 0xfffff80004601000 new_switchtime = runtime = #8 0xffffffff806aaca4 in sched_idletd (dummy=dummy@entry=0x0) at /usr/src/sys/kern/sched_4bsd.c:1688 __pc = 0x0 stat = #9 0xffffffff806324b2 in fork_exit ( callout=0xffffffff806aac50 , arg=0x0, frame=0xfffffe00d5407f40) at /usr/src/sys/kern/kern_fork.c:1153 __pc = 0x0 __pc = 0x0 td = 0xfffff80004601000 p = 0xfffffe00c3002040 dtd = #10 -- Steve