From nobody Tue Dec 20 18:29:25 2022 X-Original-To: fs@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 4Nc4qB0hX9z1GMjq for ; Tue, 20 Dec 2022 18:29:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Nc4q96mYzz40fS for ; Tue, 20 Dec 2022 18:29:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1671560965; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1a3+AizhRF2hC72ZuK5/QR9T+nQ0LzegGw0Tu7MHkxc=; b=lfFZpfj1lACWyfFO54ftsr/DjJv9dEBqACkFAAwmfAuhrk0PYUzvu8rxCAUAQq5EvM3lSF HbKLn2Qf/RpEsyml7evLcmTGGHoCx7AoduQb3qWxhpwxSRQ9L9D0UXGnHdxKF3HDNeMeRF F9R29di5wYd1ade17DgCkosQcOsX8qFZu3LIFncEF/QzsQMrAOdMWxY3zmfdBVY28cS3Dl BVQHo9ddu9ZlbfMaQHd0FejB4EBJxyjf7mii/Q36bm+7/lCDFAAMebQPMFnXkr3iYkBCR9 KKqVNBTe9BftiClWRy23SzebQxIPtAwdRZ2ii+HQ9AuRkN0abxZmjID6demv9g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1671560965; a=rsa-sha256; cv=none; b=Ad5KwGLuF90AhfRVISqirogcEiNygVXROnwe38oCn5IdxXpJysoFEOF9yYppoWveXGz6TV zl0PzGZ7lRyZv6uTIXhQK2ucafDN/z0hD3x649g0LaQ3DJ4XikTWJC4KTmBi1Tconc9F1+ s9KhK71vwcaViONwgu1h4wKpO9p9bWnBJMIMwDnOakepNniz9gs2hZqvD52ub30dm/OUL2 lO4WfPhlXOaT4GVMO2iQ7QRKpYxeJtrX+yicqcKYri2FK5vfgVbiYwqgoRRYerwYNaSL1Q HUwrqhQUwcLdkhJPi7OJ2yQzgfrt2y1s6Fhm/enEEtEnicHCG0oeZVcYapt5xA== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4Nc4q95rDxzl39 for ; Tue, 20 Dec 2022 18:29:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 2BKITPLL032658 for ; Tue, 20 Dec 2022 18:29:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 2BKITPnM032657 for fs@FreeBSD.org; Tue, 20 Dec 2022 18:29:25 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 266302] [zfs][iscsi] Periodic drops by ctl with "failed to allocate soft PDU" since 13.1 Date: Tue, 20 Dec 2022 18:29:25 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jhb@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D266302 John Baldwin changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |markj@FreeBSD.org --- Comment #4 from John Baldwin --- I think the large number of frees of various items is probably due to the vm_lowmem handler running due to the system running out of memory, and that= the 30s probably is simply too large of a granularity to notice the event. I t= hink you'd have to do more work to figure out what is allocating more memory dur= ing the spike and why. I do think iSCSI is just a victim here as the relevant = UMA zone doesn't show up in any of your graphs as a top memory consumer, just f= or allocation failures. Note that you also had a fairly big spike of vm_pagca= che2 at the time of failure, and a spike in requests for several ZFS-related zon= es.=20 The zio_buf_comb_1048576 wasn't in the request graph at all until the spike= at the very end. I don't know if that's another indication that vm_lowmem was triggered or not. --=20 You are receiving this mail because: You are the assignee for the bug.=