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[209.85.160.180]) by smtp.gmail.com with ESMTPSA id l16sm6894982qke.68.2020.03.02.16.55.54 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Mar 2020 16:55:54 -0800 (PST) Received: by mail-qt1-f180.google.com with SMTP id 59so410693qtb.1 for ; Mon, 02 Mar 2020 16:55:54 -0800 (PST) X-Received: by 2002:ac8:3aa2:: with SMTP id x31mr2331038qte.140.1583196954521; Mon, 02 Mar 2020 16:55:54 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Ryan Libby Date: Mon, 2 Mar 2020 16:55:43 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: -CURRENT fatal trap cause by cxgbe module To: Dustin Marquess Cc: FreeBSD CURRENT Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 48WdqK2TvBz4Z7H X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of rlibby@gmail.com designates 209.85.219.51 as permitted sender) smtp.mailfrom=rlibby@gmail.com X-Spamd-Result: default: False [-2.94 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; RCVD_COUNT_THREE(0.00)[4]; MIME_TRACE(0.00)[0:+]; TO_DN_ALL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[51.219.85.209.list.dnswl.org : 127.0.5.0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-0.94)[ipnet: 209.85.128.0/17(-2.99), asn: 15169(-1.66), country: US(-0.05)]; FORGED_SENDER(0.30)[rlibby@freebsd.org,rlibby@gmail.com]; FREEMAIL_TO(0.00)[gmail.com]; RWL_MAILSPIKE_POSSIBLE(0.00)[51.219.85.209.rep.mailspike.net : 127.0.0.17]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[rlibby@freebsd.org,rlibby@gmail.com]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Mar 2020 00:55:58 -0000 On Sun, Mar 1, 2020 at 8:07 PM Dustin Marquess wrote: > > So I've been fighting with any current from the last month or so > instantly crashing when I boot it. I did notice that kernels in the > various snapshot images were working, however, so I was trying to > figure out why. At first I thought it was because I had INVARIANTS > and such disabled, but no, I finally figured it out. > > I've had in my /boot/loader.conf for a while now: > > if_cxgbe_load="YES" > > I guess since the stock installer kernels don't have cxgbe enabled by > default. I added "device cxgbe" to my kernels a while ago. Normally > the kernel would give some error about the module already being loaded > or something and just continue. As of last month or so, however, > instead it just crashes: > > FreeBSD clang version 9.0.1 (git@github.com:llvm/llvm-project.git > c1a0a213378a458fbea1a5c77b315c7dce08fd05) (based on LLVM 9.0.1) > WARNING: WITNESS option enabled, expect reduced performance. > kernel trap 12 with interrupts disabled > > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0x8 > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff80622931 > stack pointer = 0x28:0xffffffff8241c9a0 > frame pointer = 0x28:0xffffffff8241c9e0 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = resume, IOPL = 0 > current process = 0 () > trap number = 12 > panic: page fault > cpuid = 0 > time = 1 > > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff8241c600 > vpanic() at vpanic+0x18a/frame 0xffffffff8241c660 > panic() at panic+0x43/frame 0xffffffff8241c6c0 > trap_fatal() at trap_fatal+0x386/frame 0xffffffff8241c720 > trap_pfault() at trap_pfault+0x99/frame 0xffffffff8241c7a0 > trap() at trap+0x4e9/frame 0xffffffff8241c8d0 > calltrap() at calltrap+0x8/frame 0xffffffff8241c8d0 > --- trap 0xc, rip = 0xffffffff80622931, rsp = 0xffffffff8241c9a0, rbp > = 0xffffffff8241c9e0 --- > malloc() at malloc+0x51/frame 0xffffffff8241c9e0 > sysctl_handle_string() at sysctl_handle_string+0x12d/frame 0xffffffff8241ca20 > sysctl_root_handler_locked() at sysctl_root_handler_locked+0xa2/frame > 0xffffffff8241ca70 > sysctl_register_oid() at sysctl_register_oid+0x54c/frame 0xffffffff8241cd80 > sysctl_register_all() at sysctl_register_all+0x88/frame 0xffffffff8241cda0 > mi_startup() at mi_startup+0xf2/frame 0xffffffff8241cdf0 > btext() at btext+0x2c > KDB: enter: panic > [ thread pid 0 tid 0 ] > Stopped at kdb_enter+0x37: movq $0,0xa5f4a6(%rip) > db> > > If I take the if_cxgbe_load out, however, it boots fine. > > Thanks! > -Dustin > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" You maybe also have something defined in your /boot/loader.conf that causes a tunable to be set? It looks like there's just an ordering bug in kern_sysctl.c, where we call sysctl_register_all() with SI_SUB_KMEM, SI_ORDER_FIRST but we do MALLOC_DEFINE() with SI_SUB_KMEM, SI_ORDER_THIRD. If sysctl_register_all() is going to malloc(), it needs to run after malloc_init(), and it looks like populating a string tunable causes it to malloc(). Ryan