From nobody Tue Jul 20 16:15:58 2021 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 A9EB0127D2C2 for ; Tue, 20 Jul 2021 16:15:59 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-qk1-x735.google.com (mail-qk1-x735.google.com [IPv6:2607:f8b0:4864:20::735]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GTkNH2Tygz502G for ; Tue, 20 Jul 2021 16:15:58 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by mail-qk1-x735.google.com with SMTP id 23so20555847qke.0 for ; Tue, 20 Jul 2021 09:15:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=JjLjfaRPAE8JboTDTUCYXvTodJxJ1AF4k+8ZuoVNpSU=; b=nrV/xXcNvx0v3UIWRBrimz+QNmSQeYVlXc0lyBKADfCWjaKLI/GcuLX9gdq+h3UL9N dmd2rksIv82GyLRFeJHNeH4GF4ovDFnuhgc6punrN1/wkt/uuHVmEVBiDs37zzj9VufK D9aVvV5AlNp/YJh0OF7H9ecZd9yQgziATGZp8iKsrz/E/lzRSdVyQmDvcA+xbVXUFURR QPUcVQ+gCwNwml7AFX2PdozBmkLHNEu8hZJ8/HYc0qtHMcwhAxbF9q1SB7fgfTw13GTv Lu/1ArkSeR6eISoNhl0pBzSdiA9py/fVqQIhlqWP7P6lvQvQT5P5E3+sMRwaVR5JZQdm RUVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=JjLjfaRPAE8JboTDTUCYXvTodJxJ1AF4k+8ZuoVNpSU=; b=mhbZFzyJnJn+lVyqzRlsBEua7bzQ+4xgohhHkZo/1dFnIaOZfSWlDCaW04MUp7ZQSZ 0iAMRVJnwTzIb4vzf0SUhGKVqSPBqw9wpTovQt2KGXxkeRWy8ICk8sgaXoE+qOcAIxvX 2/epzlVTyRoFywUgV5VaG7qOtGcmGCJdom+/VqBiLG6yJ89TqhTVQnbWLjpflMzecnf9 0E6kMrJ+Mhp/aXKfPk/Z/SraiL1ZmTmF42JukIlom79sEBD3IXuceNGM48uzHeParmsb yxRPb3FMU/Y3Tr6oZ2uWH8KuKJZhh16nJKna4zOyF5NeiJ9F8YfzKYdUnRaQWd6sffcG ggIw== X-Gm-Message-State: AOAM531xj1H0CYc7BSCTktOKbTOI3rHtzPQZjVJeWd0D+Bjcf5k/KUFt Sl8zVKclJVPuQ9ANlli6dd2bY+ne9BE= X-Google-Smtp-Source: ABdhPJwSVnamw+wGBzTUFGib7u+61JLTz/eTjPQCn8Qzqvd/stkmRfonwKNngycmeokGF99HZTSt1Q== X-Received: by 2002:a05:620a:d5d:: with SMTP id o29mr30408203qkl.157.1626797757736; Tue, 20 Jul 2021 09:15:57 -0700 (PDT) Received: from nuc ([142.126.183.196]) by smtp.gmail.com with ESMTPSA id o13sm8124439qti.84.2021.07.20.09.15.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jul 2021 09:15:57 -0700 (PDT) Date: Tue, 20 Jul 2021 12:15:58 -0400 From: Mark Johnston To: Steve Kargl Cc: freebsd-current@freebsd.org Subject: Re: panic: vm_domainset_iter_first: Unknown policy 15168 Message-ID: References: <20210719220219.GA1010@troutmask.apl.washington.edu> <20210720020503.GA32856@troutmask.apl.washington.edu> <20210720160704.GA35184@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 In-Reply-To: <20210720160704.GA35184@troutmask.apl.washington.edu> X-Rspamd-Queue-Id: 4GTkNH2Tygz502G X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N On Tue, Jul 20, 2021 at 09:07:04AM -0700, Steve Kargl wrote: > On Mon, Jul 19, 2021 at 07:05:03PM -0700, Steve Kargl wrote: > > On Mon, Jul 19, 2021 at 07:55:07PM -0400, Mark Johnston wrote: > > > On Mon, Jul 19, 2021 at 03:02:19PM -0700, Steve Kargl wrote: > > > > > > > > (kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 > > > > #1 doadump (textdump=textdump@entry=1) > > > > at /usr/src/sys/kern/kern_shutdown.c:399 > > > > #2 0xffffffff805fe263 in kern_reboot (howto=260) > > > > at /usr/src/sys/kern/kern_shutdown.c:486 > > > > #3 0xffffffff805fe6b0 in vpanic (fmt=, ap=) > > > > at /usr/src/sys/kern/kern_shutdown.c:919 > > > > #4 0xffffffff805fe4b3 in panic (fmt=) > > > > at /usr/src/sys/kern/kern_shutdown.c:843 > > > > #5 0xffffffff8085dcbb in vm_domainset_iter_first (di=, > > > > domain=) at /usr/src/sys/vm/vm_domainset.c:189 > > > > #6 0xffffffff8085dbd2 in vm_domainset_iter_page_init ( > > > > di=di@entry=0xfffffe012ae5e2a0, obj=obj@entry=0xfffff8003c21f420, > > > > pindex=, pindex@entry=16931, > > > > domain=domain@entry=0xfffffe012ae5e2f4, req=, > > > > req@entry=0xfffffe012ae5e2f0) at /usr/src/sys/vm/vm_domainset.c:217 > > > > > > Could you please show output from: > > > > > > (kgdb) frame 6 > > > (kgdb) p *dr > > > (kgdb) p obj->domain > > > > > > > The system is at work. I'll do this tomorrow morning. > > Thanks for asking for additional info. > > > > Hi Mark, I poked around and tried to supply the request info > along with content of other structs. > > (kgdb) frame 6 > #6 0xffffffff8085dbd2 in vm_domainset_iter_page_init ( > di=di@entry=0xfffffe012ae5e2a0, obj=obj@entry=0xfffff8003c21f420, > pindex=, pindex@entry=16931, > domain=domain@entry=0xfffffe012ae5e2f4, req=, > req@entry=0xfffffe012ae5e2f0) at /usr/src/sys/vm/vm_domainset.c:217 > 217 vm_domainset_iter_first(di, domain); > (kgdb) p *dr > value has been optimized out > (kgdb) p obj->domain > $1 = {dr_policy = 0xfffff800064b9c60, dr_iter = 0} > (kgdb) p *obj->domain->dr_policy > $3 = {ds_link = {le_next = 0xfffff8003c21f420, le_prev = 0xfffffe000ce71188}, > ds_mask = {__bits = {0}}, ds_policy = 15168, ds_prefer = 231 '\347', > ds_cnt = 12 '\f', > ds_order = "\000\376\377\377@", } > (kgdb) p *di > $8 = {di_domain = 0xfffff800064b9c60, di_iter = 0xfffff8003c21f490, > di_offset = 35190825029656, di_flags = 86066, di_policy = 15168, > di_n = 255 '\377', di_minskip = true} So the object somehow ended up referencing a bogus domainset. Could you please also show (kgdb) p *obj (kgdb) p vnode_domainset ? Is the problem reproducible?