From owner-freebsd-current@freebsd.org Fri Oct 9 21:39:58 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 63BF542DFEB for ; Fri, 9 Oct 2020 21:39:58 +0000 (UTC) (envelope-from eric@vangyzen.net) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4C7M1B1RJ7z4vnF for ; Fri, 9 Oct 2020 21:39:58 +0000 (UTC) (envelope-from eric@vangyzen.net) Received: by mailman.nyi.freebsd.org (Postfix) id 2F81A42DFEA; Fri, 9 Oct 2020 21:39:58 +0000 (UTC) Delivered-To: current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2F40742E188 for ; Fri, 9 Oct 2020 21:39:58 +0000 (UTC) (envelope-from eric@vangyzen.net) Received: from smtp.vangyzen.net (hotblack.vangyzen.net [199.48.133.146]) (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 did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4C7M190r4fz3RWh for ; Fri, 9 Oct 2020 21:39:56 +0000 (UTC) (envelope-from eric@vangyzen.net) Received: from disco.vangyzen.net (unknown [70.97.188.230]) by smtp.vangyzen.net (Postfix) with ESMTPSA id C5AD85646C for ; Fri, 9 Oct 2020 16:39:49 -0500 (CDT) To: current@freebsd.org From: Eric van Gyzen Subject: ZFS crash -- zvol_geom_bio_getattr called when volmode=dev Message-ID: <1dfaf797-f23b-af97-d2d3-efa0f5bb88d9@vangyzen.net> Date: Fri, 9 Oct 2020 16:39:45 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4C7M190r4fz3RWh X-Spamd-Bar: - X-Spamd-Result: default: False [-1.12 / 15.00]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_SPAM_SHORT(0.10)[0.105]; FREEFALL_USER(0.00)[eric]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[current@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.66)[-0.662]; ARC_NA(0.00)[]; R_SPF_ALLOW(-0.20)[+a]; DMARC_NA(0.00)[vangyzen.net]; NEURAL_HAM_MEDIUM(-0.27)[-0.265]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:36236, ipnet:199.48.132.0/22, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 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: Fri, 09 Oct 2020 21:39:58 -0000 Does this look familiar? I'm creating a zvol with volmode=dev, but some geom code paths were taken. If this looks new, I'll provide more details. Thanks in advance, Eric 13.0-CURRENT r366500+84ccaf49083c-c272054 GENERIC #8 #9 zvol_geom_bio_getattr (bp=0xfffff80376132900) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c:545 #10 zvol_geom_bio_start (bp=0xfffff80376132900) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c:519 #11 0xffffffff80b1c684 in g_io_schedule_down (tp=) at /usr/src/sys/geom/geom_io.c:848 #12 0xffffffff80b1cfcc in g_down_procbody (arg=) at /usr/src/sys/geom/geom_kern.c:111 (kgdb) f 9 #9 zvol_geom_bio_getattr (bp=0xfffff80376132900) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c:545 545 spa_t *spa = dmu_objset_spa(zv->zv_objset); (kgdb) l 540 zvol_state_t *zv; 541 542 zv = bp->bio_to->private; 543 ASSERT(zv != NULL); 544 545 spa_t *spa = dmu_objset_spa(zv->zv_objset); 546 uint64_t refd, avail, usedobjs, availobjs; 547 548 if (g_handleattr_int(bp, "GEOM::candelete", 1)) 549 return (0); (kgdb) p zv $1 = (zvol_state_t *) 0x0 (kgdb) p *bp $3 = { bio_cmd = 4, bio_flags = 0, bio_cflags = 0, bio_pflags = 0, bio_dev = 0x0, bio_disk = 0x0, bio_offset = 0, bio_bcount = 0, bio_data = 0xfffff801fa687c00 "", bio_ma = 0x0, bio_ma_offset = 0, bio_ma_n = 0, bio_error = 0, bio_resid = 0, bio_done = 0x0, bio_driver1 = 0x0, bio_driver2 = 0x0, bio_caller1 = 0x0, bio_caller2 = 0x0, bio_queue = { tqe_next = 0xffffffffffffffff, tqe_prev = 0xffffffffffffffff }, bio_attribute = 0xffffffff81223c03 "GEOM::physpath", bio_zone = { zone_cmd = 0 '\000', zone_params = { disk_params = { zone_mode = 0, flags = 0, optimal_seq_zones = 0, optimal_nonseq_zones = 0, max_seq_zones = 0 }, rwp = { id = 0, flags = 0 '\000' }, report = { starting_id = 0, rep_options = 0 '\000', header = { same = 0 '\000', maximum_lba = 0, reserved = '\000' }, entries_allocated = 0, entries_filled = 0, entries_available = 0, entries = 0x0 } } }, bio_from = 0xfffff80006b92880, bio_to = 0xfffff80006972500, bio_length = 1024, bio_completed = 0, bio_children = 0, bio_inbed = 0, bio_parent = 0x0, bio_t0 = { sec = 50, frac = 10248368299661698441 }, bio_task = 0x0, bio_task_arg = 0x0, bio_spare1 = 0x0, bio_spare2 = 0x0, bio_track_bp = 0x0, bio_pblkno = 0 } (kgdb) p *bp->bio_to $4 = { name = 0xfffff80006972598 "zvol/disco_fast/vm/onefs1-1/disk7", provider = { le_next = 0x0, le_prev = 0xfffff80006972428 }, geom = 0xfffff80006972400, consumers = { lh_first = 0xfffff80006b92880 }, acr = 1, acw = 0, ace = 0, error = 0, orphan = { tqe_next = 0x0, tqe_prev = 0x0 }, mediasize = 5368709120, sectorsize = 512, stripesize = 8192, stripeoffset = 0, stat = 0xfffff80006d3d120, spare1 = 0, spare2 = 0, flags = 48, aliases = { lh_first = 0x0 }, private = 0x0, index = 0 }