From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792997931; b=LQ/lNUxf4b8zRMEJaAZQ1niOdrnFLwzenYskZ8Dl/nbqWJkC2rjbtMOhSrz+34TeCXjg /7bLTWcL7hxqpgg6qow3NlEpfsIFKWsy6EzdXDN5tVIp+lrWyqyCDtpGSRu1/FWvoJGJv DRg/EB2uO9Vp+XfiEFA+JHtC23zF04cca7pmcq1FoG+SLPjKhBwbE3Xr93b2g6Be75QIi QJrZ5xYT3PSzgYPQQUu7BpbH3XwsRcuO43MLY17Kwj/+7CxDZYFUJbA5kDphD6ikDrm8T LcT2e8qgqCHB44AGFQQiPLrUKtjD8wsUQn8xjSIQwqR2NVlOsmju80r9//J1Jj2sllg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792997931; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=A9ScBV72TW7/CuZjJZ5GnVQQvndOxt3kGh8LlqX643Y=; b=KmwJ9KLSiKli4D2Zs74VFpOc8R/JvtzchaU/4mWVuCr1bjwHVVquEiy6J8VkJHqCJdo6 zEMIpd231T67f5r/2Ir+czxnnPULEZmuOMKfQ0kj67UoFY8pQTxQRDvwjROqaPJkyXZ9H 1UBL/IYEXxWU/kkP7rABeM/f3hx+sa5ws8n4ECyPhypGGWdEc6hMA0+5WUumOK9MLF/j3 rpgOPdxNByQLBZEica1DmeidyPVnpa2r6Ir74UgWK7ioy6I4X2gySXw+yenDKaqAYNv3Y A3x8mGWh1VoYghM51m3NtrV8u15E/uy6fzWnJ+BM3lBxvxaPu0sXPmAOmzZtg9rcn7Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=htpCrMRf; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28A89606A31A for ; Mon, 26 Oct 2026 06:58:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=htpCrMRf Received: by smtp.kernel.org (Postfix) with ESMTPSA id A290A1F01825 for ; Mon, 26 Oct 2026 06:58:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792997930; bh=A9ScBV72TW7/CuZjJZ5GnVQQvndOxt3kGh8LlqX643Y=; h=From:Subject:Reply-To:Cc:In-Reply-To:References:Date; b=htpCrMRfLotyJ8r31ezcqTcDW5I144KSu+9oEF6mGzpVbPvpwqufIKd6y/W2ijKxb 49FyGKBPSKlIVVkp9OGsMlelpL7waJ+PZlV93IIoDRob08LsKlfJ8s9xReT1CjaJdV xcdTqeU1YcUIyaATGHdGQW5qXo8ZBFxcmsYCMPjIqBBTV3Ux+wEPvdKfDTs+cRapng nbxY/aSG7/7eJse9mFP3hB2FEDxUcG8i7sfsz0cVTOFlZv0lbvAWaL+GH6j8ZcPRLK Cd7xMgyfyZZ+VY3lGyvtZtjcUVsCvj5JwHCoADyg76npkstVXiRf/c3v/rsnPKVXBt KGAutNZlf1oFQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH] KEYS: dispatch key_gc_work to system_wq. Reply-To: sashiko-reviews@lists.linux.dev Cc: =?utf-8?b?b3BlbiBsaXN0OlNFQ1VSSVRZIFNVQlNZU1RFTQ==?= In-Reply-To: <20261026031219.2627968-1-jarkko@kernel.org> References: <20261026031219.2627968-1-jarkko@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 26 Oct 2026 06:58:50 +0000 X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > schedule_work() dispatches key_gc_work on the per-CPU system_wq, which can > choke the queue: >=20 > BUG: workqueue lockup - pool cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 stuck= for 30s! >=20 > Queue the work on system_dfl_long_wq instead, which is an unbounded wq for > long-running tasks i.e., it has the WQ_BOUND flag set and thus cannot hog > the CPU core. >=20 > Link: https://lore.kernel.org/keyrings/20261024042944.52493-1-hackerowski= y@gmail.com/ > Reported-by: syzbot+c15de43f1e7fffbb7b9b@syzkaller.appspotmail.com > Closes: https://lore.kernel.org/all/6ad35b60.7952420f.283480.0360.GAE@goo= gle.com/T/ > Signed-off-by: Jarkko Sakkinen Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261026031219.2627= 968-1-jarkko@kernel.org?part=3D1