From nobody Sat May 16 13:45:39 2026 X-Original-To: current@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 4gHlh52nL8z6cQDK for ; Sat, 16 May 2026 13:45:41 +0000 (UTC) (envelope-from des@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (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 "smtp.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gHlh51h3lz3X86; Sat, 16 May 2026 13:45:41 +0000 (UTC) (envelope-from des@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1778939141; 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=2NAMRxGT0U4Psfv4l4NZCIj8TZnC2fs4/3geLBWyhes=; b=Hu1UrHawtyFU/US3B7nHvsd22dFlFRXYYUigCcVy47QekOeLZPIM3Iz07WqMkQeP9wVM6u y5TO5hP5UakPGl4kBTqZcFt+SRGUGP6Dtr1VIbArdhcBPLzKxmQp6bNjaVvsRekBJXazxl pwlJSEf7u804GT411ZVzIhz+aZ+Mder5xnnOJ5x8hjf4I6uA0GfTec2oYCzjoggcGU66S4 jmzNzBpQETbBpBY6IRptlvmpU+HsrWUh0Pn88lZ97lWJGuNjncpqZrmputXwbcF70xLUoP boyV1acagtmT5xE2YP4RBvDbuq8MwFaMX3ybDmEu2E92+iY1TOFoFqiDolwA+g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1778939141; a=rsa-sha256; cv=none; b=UglMf9C9GlUwNvLxsjc/TBZaNhGGJoxjGnmKLDewdfdfvU25K12nMVB113nCE2pG1/dKa7 nWYfmzQRhvkDZbimfjDjJxlAoyjSgjgPjI28M90fi5xGOrrmVaQ1pl2jZAdQ+OvXO2gHIk 8LiV8FDkKLPxXQdIxtH3G0l7NTRZarl6cJReTLq+rFrsMKDq4xfwxXSq94cWGRQaYwENTt 1bxAVczAci83cOYuG2pLwNi5B5fcwT3n+3a9QRtCYqgeZpQ9Cz5aotdAjAy+GYbQXH7wRM t5eSTQ6YmPwQcGTEz/O8K9maKLImvrp/DLY/OTCFtFk/bCWNU/DEtfvBnrXBBA== 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=1778939141; 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=2NAMRxGT0U4Psfv4l4NZCIj8TZnC2fs4/3geLBWyhes=; b=OQ96AUeJukZl9c4VX2l1jMJy+u8gB7Gu90IaAcyEKUPcRofjVZ0xDRS5WuPCMNfAD0QRbD KmOacoXNYnzgym0T6NreJJ8BmNrsYUnkx6BeQ5ZbX2qMDo7jV1N8tYTcC/Ku5H1gF+aum8 WTa46I0Cu5Qybl4JYG/7t0JKuuGo4kki0dUXHEMcDFyZpHJEw0M2dOwaQkcq89o/KNS7YD YMoMrD776FldtqxEl193wrNpznHB7BBCw4NjbHkJgX7siUC3fO3HbNSWIJFAS4Qflu4Omt ioIZ7I4dwToCE40EdjAUWqGGGR31C44iMelLSg9ICqlTif+Xht7W+YB2v3uBbA== Received: from ltc.des.dev (2a01cb0585070b00922e16fffef1acef.ipv6.abo.wanadoo.fr [IPv6:2a01:cb05:8507:b00:922e:16ff:fef1:acef]) (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) (Authenticated sender: des/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4gHlh50CcPz12kj; Sat, 16 May 2026 13:45:41 +0000 (UTC) (envelope-from des@freebsd.org) Received: by ltc.des.dev (Postfix, from userid 1001) id EAC11AA313; Sat, 16 May 2026 15:45:39 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: Konstantin Belousov Cc: current@freebsd.org Subject: Re: rms_rlock with non-sleepable locks held In-Reply-To: (Konstantin Belousov's message of "Sat, 16 May 2026 13:08:39 +0300") References: <86lddjelen.fsf@ltc.des.dev> User-Agent: Gnus/5.13 (Gnus v5.13) Date: Sat, 16 May 2026 15:45:39 +0200 Message-ID: <86a4tzead8.fsf@ltc.des.dev> 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 List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Konstantin Belousov writes: > Dag-Erling Sm=C3=B8rgrav writes: > > On recent main with a debugging kernel, I am unable to build > > anything as the system slows to a crawl while the console is > > inundated with stack traces: [...] > I already posted the patch below somewhere, but did not get a response. The patch made no difference. FWIW what triggers the problem is running tail -F on the build log, which I always do when building. Tailing a file which is being written to triggers it on every write, but even tailing an empty file triggers it about once per second. So for now I'm able to build, as long as I don't tail the log... DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org