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[217.226.54.15]) by smtp.gmail.com with ESMTPSA id l12sm18003996wro.32.2021.06.29.02.42.03 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Jun 2021 02:42:04 -0700 (PDT) Date: Tue, 29 Jun 2021 11:42:01 +0200 From: Gary Jennejohn To: FreeBSD Current Subject: Re: kernel panic while copying files Message-ID: <20210629094201.77ef5f22@ernst.home> In-Reply-To: <20210610095041.38d7597c@ernst.home> References: <20210607090109.08ecb130@ernst.home> <20210608084646.6a7e1bc7@ernst.home> <20210608155405.5cf0e200@ernst.home> <20210610095041.38d7597c@ernst.home> Reply-To: gljennjohn@gmail.com X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; amd64-portbld-freebsd14.0) 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-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4GDfdV22x5z4b5J X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Nzx0MAug; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of gljennjohn@gmail.com designates 2a00:1450:4864:20::32f as permitted sender) smtp.mailfrom=gljennjohn@gmail.com X-Spamd-Result: default: False [-2.00 / 15.00]; HAS_REPLYTO(0.00)[gljennjohn@gmail.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RBL_DBL_DONT_QUERY_IPS(0.00)[2a00:1450:4864:20::32f:from]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RECEIVED_SPAMHAUS_PBL(0.00)[217.226.54.15:received]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_REPLYTO(0.00)[gmail.com]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[2a00:1450:4864:20::32f:from:127.0.2.255]; NEURAL_SPAM_SHORT(1.00)[0.999]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::32f:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current] X-ThisMailContainsUnwantedMimeParts: N I was sort of hoping that all the recent changes made by imp@ in cam and umass may have fixed the cause of the kernel crash. Unfortunately not. But there is a change - instead of a duplicate free the panic is now the result of an unaligned free. panic: Unaligned free of 0xfffff800259e2800 from zone 0xfffffe00dc9d2000(da_ccb) slab 0xfffff800259e2fd8(3) I have the crash dump and a debug kernel in case anyone wants more info. -- Gary Jennejohn