From owner-freebsd-bugs@freebsd.org Thu Nov 22 17:14:31 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6AEB7114CA54 for ; Thu, 22 Nov 2018 17:14:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id F30FC7DD40 for ; Thu, 22 Nov 2018 17:14:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id B0733114CA53; Thu, 22 Nov 2018 17:14:30 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8AE4B114CA52 for ; Thu, 22 Nov 2018 17:14:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 268697DD3B for ; Thu, 22 Nov 2018 17:14:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 50E1ED343 for ; Thu, 22 Nov 2018 17:14:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id wAMHETGJ081158 for ; Thu, 22 Nov 2018 17:14:29 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id wAMHETlA081157 for bugs@FreeBSD.org; Thu, 22 Nov 2018 17:14:29 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 233377] [PowerPC64] Panic during high disk I/O activity Date: Thu, 22 Nov 2018 17:14:28 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: sbruno@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Rspamd-Queue-Id: F30FC7DD40 X-Spamd-Result: default: False [1.37 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_SPAM_LONG(0.42)[0.416,0]; NEURAL_SPAM_MEDIUM(0.36)[0.355,0]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US]; NEURAL_SPAM_SHORT(0.60)[0.596,0] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Nov 2018 17:14:31 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233377 --- Comment #3 from Sean Bruno --- I'm not sure this is helpful, but with the debug printf in the kernel the p= anic looks like this on the console. Is there any debugging I can do from the d= b> prompt to give us a clue here? draining zone 2048 draining zone 1024 draining zone 512 draining zone 256 draining zone 128 draining zone 64 draining zone 32 draining zone 16 draining zone mt_zone draining zone mt_stats_zone draining zone 64 pcpu draining zone fakepg draining zone UPVO entry draining zone VMSPACE draining zone MAP ENTRY draining zone KMAP ENTRY draining zone MAP draining zone RADIX NODE draining zone VM OBJECT draining zone vmem btag draining zone vmem draining zone 256 Bucket draining zone 128 Bucket draining zone 64 Bucket draining zone 32 Bucket draining zone 16 Bucket draining zone 12 Bucket panic: Memory modified after free 0xc00000037d3c0c00(96) val=3D0 @ 0xc00000037d3c0c00 cpuid =3D 31 time =3D 1542904594 KDB: stack backtrace: 0xe000000090207010: at .kdb_backtrace+0x5c 0xe000000090207140: at .vpanic+0x1b4 0xe000000090207200: at .panic+0x38 0xe000000090207290: at .trash_ctor+0x58 0xe000000090207310: at .trash_fini+0x1c 0xe000000090207390: at .uma_zdestroy+0x164 0xe000000090207440: at .uma_zdestroy+0x42c 0xe0000000902074d0: at .sys_swapoff+0x2c4 0xe000000090207560: at .uma_zfree_pcpu_arg+0x2ec 0xe0000000902075f0: at .zone_drain+0x34 0xe000000090207680: at .uma_avail+0x4c4 0xe000000090207710: at .zone_drain+0x398 0xe0000000902077a0: at .uma_reclaim_worker+0x20c 0xe000000090207850: at .fork_exit+0xd0 0xe0000000902078f0: at .fork_trampoline+0x10 0xe000000090207920: at -0x4 KDB: enter: panic [ thread pid 15 tid 100219 ] Stopped at .kdb_enter+0x60: ld r2, r1, 0x28 --=20 You are receiving this mail because: You are the assignee for the bug.=