From nobody Fri Oct 06 23:46:42 2023 X-Original-To: bugs@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 4S2Q7Q2SnCz4w2wb for ; Fri, 6 Oct 2023 23:46:42 +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 4S2Q7Q0Xxqz4TPG for ; Fri, 6 Oct 2023 23:46:42 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1696636002; a=rsa-sha256; cv=none; b=nzK34YHM9gazoWySl4cejsyOi3c8mfj73mcA43rwyTGQ+lZUWwjbp9wFDiomETnFR/uwpG rhgLXEu8JFsqI/IVhotkAZebW/WspqruX0fdTw3lj9v1gBr0RHKUErU02+7tgp+OQy1t7+ 76ayNEa548ELuqLQqjm0HvhnWlWRquXCLQvp++O8zcnIcMCCculCIwPBrYhjAY3K1S6kZ/ RYEL06SaeeNl32KmGzrNvLDMlxh7L46jvHWDIteiFzrQs0KQUhdp4A/yRxQ8RSKvMveUuv MVHX3DtEq6nQo6kT4teOEbZZn67iLpa1Zkt5ESNHyyNA5E8UD6iiZ139HAs4qg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1696636002; 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=/PUDPBwBU1hmmP2BDn/2CRyJ0irF4fm23eHwG1B4vQE=; b=TrxWqFcKzkXbfMZbmajQgBOB2sWQuRRDDYA2mruAa/CU1BXEsa8NuGe6rg3u7Jkg2thyi7 II899tOXXmGHwkjaRuAKhP+HHfrDBym9fdkiH36gzvZC/L9HAKDMGvvqCgT+28gQnTpOhe RH2PkBaDawv3s5wflK4Wgz4x5WtPKdMd4rGYv0PehmbrLFR3EH+81yHNEOYio0ARnimQNp RFFHt2H6+K47gA4IahpM1etuatm+rSbQ4tlkVpTKHuZt7P91DGifrbrhNEsWW4u/lUAlcX vwmZYv5v4CwvZPDN646/zzaiRrk390LBsJXsZBOo1rbwexFE6J9zkkqSmL5lIw== 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 4S2Q7P6bcwz17B2 for ; Fri, 6 Oct 2023 23:46:41 +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 396NkfPC013594 for ; Fri, 6 Oct 2023 23:46:41 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 396NkfUK013593 for bugs@FreeBSD.org; Fri, 6 Oct 2023 23:46:41 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: bugs@FreeBSD.org Subject: [Bug 274252] sys/vm: less-than-ideal handling of memory requests that cannot be fulfilled Date: Fri, 06 Oct 2023 23:46:42 +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: Unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: kevans@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274252 --- Comment #2 from Kyle Evans --- (In reply to Jason A. Harmening from comment #1) IIRC from the last time I debugged this, we actually get stuck just inside @ kmem_alloc_contig_domainset. kmem_alloc_contig_domain() does fail, but it's= an M_WAITOK allocation so vm_domainset_iter_policy() just keeps restarting the search and we never break out. There's currently no way for, e.g., kmem_alloc_contig_domain() -> kmem_alloc_contig_pages() -> vm_page_alloc_contig_domain() to differentiate between a transient failure condition and an impossible request. --=20 You are receiving this mail because: You are the assignee for the bug.=