From nobody Sat Jan 13 17:11:18 2024 X-Original-To: freebsd-stable@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 4TC4gk0jn0z56D4G for ; Sat, 13 Jan 2024 17:11:30 +0000 (UTC) (envelope-from alex@alexburke.ca) Received: from out-176.mta1.migadu.com (out-176.mta1.migadu.com [IPv6:2001:41d0:203:375::b0]) (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 4TC4gj5DYrz4kQX for ; Sat, 13 Jan 2024 17:11:29 +0000 (UTC) (envelope-from alex@alexburke.ca) Authentication-Results: mx1.freebsd.org; none Date: Sat, 13 Jan 2024 18:11:18 +0100 (GMT+01:00) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alexburke.ca; s=key1; t=1705165881; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=l9Q10cE/DhOa2xJsS8tDgjk5hMXRe/wD36V2UwPLpvs=; b=IlN008EawjA1KjwhB5z/qvsc2pQ8C97+qj+9XLmrVnXwlmhTVKYN1fD9kdYZnkJFUyFyqC OGXsQCT5kIZUoBZuMBri2SYCVEljsBN8CUJyS5sc+leoggHVpFAdZwh4Ys2hvgfYbne+1G 47vFG2cl/miCDDGdfPqtaLVj0fEdRi0= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Alexander Burke To: Lev Serebryakov Cc: freebsd-fs , freebsd-stable , Warner Losh , Dimitry Andric Message-ID: In-Reply-To: References: <22167ed4-887d-4fe0-b0a6-36312ae38fea@FreeBSD.org> Subject: Re: vfs.zfs.compressed_arc_enabled=0 is INCOMPATIBLE with L2ARC at least in FreeBSD 13 (Was: Crash on adding L2ARC to raidz1 pool) List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Correlation-ID: X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 4TC4gj5DYrz4kQX X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:16276, ipnet:2001:41d0::/32, country:FR] Hello, It looks like the issue is fixed in OpenZFS 2.2 (and thus in FreeBSD 14-REL= EASE): https://github.com/openzfs/zfs/issues/15764#issuecomment-1890491789 Cheers, Alex ---------------------------------------- Jan 13, 2024 12:26:50 Lev Serebryakov : > On 08.01.2024 18:34, Lev Serebryakov wrote: >=20 > =C2=A0=C2=A0 I've found that all my L2ARC problems (live-locks and crashe= s) are result of OpenZFS bug which can not support L2ARC with un-compressed= ARC (vfs.zfs.compressed_arc_enabled=3D0). >=20 > =C2=A0=C2=A0 It is NOT hardware-depended (and my NVMe is perfectly Ok and= healthy) and could be easily reproduced under VM with all-virtual disks. >=20 > =C2=A0=C2=A0 I've opened the ticket in OpenZFS project (https://github.co= m/openzfs/zfs/issues/15764). >=20 > =C2=A0=C2=A0 Maybe, FreeBSD need ERRATA entry? >=20 >=20 > =C2=A0=C2=A0 Previous threads: >=20 > =C2=A0=C2=A0=C2=A0 [1] ZFS pool hangs (live-locks?) after adding L2ARC > =C2=A0=C2=A0=C2=A0 [2] Crash on adding L2ARC to raidz1 pool >=20 > --=20 > // Lev Serebryakov