From nobody Tue Jun 22 10:31:06 2021 X-Original-To: freebsd-net@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 EC1795D6C30 for ; Tue, 22 Jun 2021 10:31:07 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (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-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4G8N3H59Cyz3wJ0 for ; Tue, 22 Jun 2021 10:31:07 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from [192.168.0.88] (unknown [195.64.148.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) (Authenticated sender: avg/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 5D8698A5E for ; Tue, 22 Jun 2021 10:31:07 +0000 (UTC) (envelope-from avg@FreeBSD.org) Subject: Re: network crash in nhop_free From: Andriy Gapon To: freebsd-net References: <2fbc5205-3fcc-d233-dae1-cf6ddc8d691d@FreeBSD.org> Message-ID: Date: Tue, 22 Jun 2021 13:31:06 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.11.0 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 In-Reply-To: <2fbc5205-3fcc-d233-dae1-cf6ddc8d691d@FreeBSD.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-ThisMailContainsUnwantedMimeParts: N It seems that the panic message was panic: Misaligned access from kernel space! On 22/06/2021 12:54, Andriy Gapon wrote: > > Not sure if I'll be able to get more out of this arm64 machine. > I was playing with ppp and switching routes between LAN and ppp when the crash > happened. > The system is 2-3 weeks old 14.0-CURRENT as of c8250c5ada85fec. > > > Tracing pid 0 tid 100014 td 0xffffa00000c00000 > db_trace_self() at db_trace_self > db_stack_trace() at db_stack_trace+0x11c > db_command() at db_command+0x244 > db_command_loop() at db_command_loop+0x54 > db_trap() at db_trap+0xf8 > kdb_trap() at kdb_trap+0x1c4 > handle_el1h_sync() at handle_el1h_sync+0x74 > --- exception, esr 0xf2000000 > kdb_enter() at kdb_enter+0x44 > vpanic() at vpanic+0x1c4 > panic() at panic+0x44 > align_abort() at align_abort+0xb8 > handle_el1h_sync() at handle_el1h_sync+0x74 > --- exception, esr 0x96000021 > nhop_free() at nhop_free+0x100 > destroy_nhgrp() at destroy_nhgrp+0x38 > epoch_call_task() at epoch_call_task+0x158 > gtaskqueue_run_locked() at gtaskqueue_run_locked+0x178 > gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0x9c > fork_exit() at fork_exit+0x74 > fork_trampoline() at fork_trampoline+0x14 -- Andriy Gapon